ThreatConnect Learning Exercises

Transcription

1 ThreatConnect Learning Exercises The following exercises will teach you some of the important features within the ThreatConnect platform. You will learn various ways of adding intelligence data into ThreatConnect, as well as ways of collaborating to enrich Indicators. This training exercise is broken up into two modules: 1. Module 1 Operation KallySky will teach you how to import highly structured intelligence derived from the ThreatConnect Intelligence Research Team (TC-IRT) as part of the Adversary Intelligence: Behind the Keyboard blog post. 2. Module 2 Phishing Attempts will require you to submit a suspicious spam into ThreatConnect for automated processing.

2 September 2015 V 1.0 Module 1 Operation KallySky Overview In May of 2015, ThreatConnect published a blog post entitled Adversary Intelligence: Behind the Keyboard that detailed the operations of a cyber-actor known as KallySky. ThreatConnect posted the intelligence contained within that blog entry to the Common Community for widespread distribution. Module 1 will walk you through importing, associating, and enriching that intelligence as the original ThreatConnect authors modeled it. Objectives Module 1 explains the following tasks in order to recreate the data associated with the KallySky Adversary: Importing structured intelligence containing Indicators related to KallySky Viewing all Indicators associated with KallySky via pivots Enriching relevant Indicators from the KallySky post

3 Lesson 1 Importing Structured Intelligence ThreatConnect allows for a number of ways to aggregate structured and unstructured data, both manually and automatically. This objective will teach you to use the Structured Import feature to upload a ThreatConnectformatted comma-separated values (CSV) file containing KallySky Indicators and some of their context. Lesson 1 assumes the following: You are logged into ThreatConnect with an account that has appropriate permissions in a designated Organization or Community. Your instructor has already created the KallySky Adversary in your Organization or Community, and it has no Indicators associated with it. You have been given the sample of KallySky-structured CSV data, or a subset of it, as appropriate.

4 1. From the top navigation bar at the right of the screen, click the IMPORT (Up Arrow) tab, and select Indicators from the drop-down menu. The Import Indicators screen will appear (Figure 1). Figure 1: Selecting Import Note: You can use the Unstructured Import option to import a PDF or other document type, or click the CREATE (+) tab to manually add a single item. 2. Click the Structured CSV box, and the screen will display various tabs and options, with the default IMPORT tab highlighted (Figure 2).

5 Figure 2: Importing the File 3. Click on the Owner drop-down menu, and select your target Organization or Community. The KallySky Adversary should have been already created in this Owner. 4. Click the +Import File button, browse to the provided CSV file, and then click the Next button. The VALIDATE tab will be highlighted (Figure 3). Figure 3: Viewing the Valid Indicators

6 5. The Validate screen displays a list of Valid Indicators, which you can view to confirm the contents of your original file. (The platform should not have found any Invalid Indicators.) Click the Next button, and the CONFIRM tab will be highlighted (Figure 4). Note: One of the strengths of using the Structured CSV import feature is that it allows for granularity in the Threat Rating and Confidence value of each Indicator. Figure 4: Confirming the Contents 6. The Confirm screen displays which Indicators will be added and which ones already exist in this Owner. There should be no collisions with existing Indicators, but it is okay if there are. ThreatConnect will detail which facets of each indicator will be modified if they are re-imported. Click the Next button and the LABELS tab will be highlighted (Figure 5).

7 Figure 5: Adding a Security Label 7. On the Labels screen, you can add Security Labels and Tags to help classify the data. Security Labels are useful for determining how to handle information. Click on the Choose Security Labels drop-down menu, and click the TLP WHITE checkbox. Per the United States Computer Emergency Readiness Team s (US-CERT) Traffic Light Protocol (TLP) guidelines, this is the appropriate Security Label since these Indicators are openly distributed. 8. Tags are useful for quickly finding other similar or related data. In the Tags panel, click in the text box to enter a Tag that will describe the data, and then click the Plus (+) button to add the Tag. Repeat for each additional Tag. Alternatively, click on one (or more) of the already-existing Tags under the Common Tags header, and the platform will add it to your list. Note that the data within your Owner determines the Common Tags, so these may differ from those displayed in Figure 5. Add the following tags: KallySky, Your Name, and Training. Click the Next button and the SAVE tab will be highlighted (Figure 6).

8 Figure 6: Creating the Association 9. On the Save screen, you will be able to save your Indicators in ThreatConnect. However, before taking this step, associate the Indicators with KallySky in order to establish for future analysts the relationship between these Indicators and the KallySky Adversary. ThreatConnect recommends that you always associate Indicators to a Group in ThreatConnect to provide additional context. Click the +New Association button, and the Select an Association pop-up screen will appear (Figure 7): Figure 7: Selecting an Association

9 10. On the Select an Association pop-up screen, you can create an association between the imported Indicators and other entities defined in your ThreatConnect Owner. These entities can be Incidents, Threats, or any other that ThreatConnect uses to group related Indicators. Click on the Select Type drop-down menu and select Adversary, and then click in the textbox to search for KallySky. The KallySky Adversary will appear in the results table. 11. Click the checkbox next to the KallySky Adversary and click the Save button. The KallySky Adversary will appear in the Associations table. 12. Click the Save button to commit all of your Indicators and their relevant contextual information to ThreatConnect. Congratulations! You have imported data into ThreatConnect! Lesson 2 Viewing Indicators via Pivots Associations play a vital role in ThreatConnect because they allow analysts to discover relationships via pivots. If two entities are connected via an association, then you can pivot from one to the other. By associating your indicators to the KallySky Adversary, you can find all KallySky Indicators by pivoting from that Adversary. Lesson 2 assumes the following: The KallySky Adversary has been created in the designated Organization or Community. Indicators have been created and associated to the above KallySky Adversary. 1. From the top navigation bar at the right of the screen, click the BROWSE tab, and the screen will display a list of entities in ThreatConnect known as the Filter Options, which can be filtered in a number of ways, including pivots (Figure 8).

10 Figure 8: The Browse Screen 2. To ensure that your filters are configured properly, click the My Connections drop-down menu, and verify that the box next to the Organization or Community from where you imported your KallySky Indicators is checked (Figure 9). This tells ThreatConnect to filter results on the Browse screen to include only those that exist in the selected Owner. Figure 9: Confirming Your Connections

11 3. Click the Adversaries filter button and the Adversaries Browse table for your selected Owner will be displayed (Figure 10). Figure 10: Filtering an Adversary 4. In the Filter input, type KallySky and click the magnifying glass button. ThreatConnect will search for all Adversaries with KallySky in the name: 5. Click on the KallySky Adversary row, and the Details/Pivot pop-up screen will appear, displaying some information about the KallySky Adversary (Figure 11). Note: Your screen may look different from the one depicted in Figure 11, depending on the enrichments added in your Owner.

12 Figure 11: The Details/Pivot Pop-Up Screen 6. Click the Pivot button, and the screen will display a number of entities associated with the KallySky Adversary as a filter (Figure 12).

13 Figure 12: Pivot Results As you pivot, the Breadcrumb bar by the House icon on the upper-left corner of the screen updates itself, remembering past pivots, so that you can return to a previous Indicator in the pivoting history. The Browse screen now displays entities that meet the following criteria: Entities that are Indicators Entities that are in the Owner (or Owners) you selected from the My Connections drop-down menu Entities that have an association with the KallySky Adversary from which you pivoted

14 By default, Indicators is the selected entity type. You can click Activity, Documents, or other buttons in the Filter Options in order to change the criterion previously defined. For example, clicking Threats only displays Threats associated to KallySky in your selected Owner. It should also be noted that you can pivot off anything in the Browse screen, which is a very powerful tool for finding all Indicators that are tagged, for example, China, or for finding in what Incidents a particular Indicator has been involved. 7. ThreatConnect now displays a list of Indicators associated with KallySky. Click on one of the Indicators you added in Lesson 1, and the Details/Pivot pop-up screen will appear once more. Pivot again from this Indicator to find other entities associated to the Indicator. Chaining pivots in this manner can expedite analysis by allowing you to traverse related entities with ease. 8. Click the Details button on the Details/Pivot pop-up screen to view Indicators in depth (Figure 13). The Details Overview screen will be present you with further information about your Indicator. Your screen may look different from the one depicted in Figure 13, depending on what enrichments have been added:

15 Figure 13: Viewing Indicator Details Lesson 3 Enriching KallySky Indicators The Indicators imported in Lesson 1 already possessed a small amount of context. Lesson 3 will describe different kinds of enrichment in ThreatConnect and identify how to add additional context. Lesson 3 assumes the following: You have added KallySky Indicators to your designated Community or Organization via Structured Import as described in Lesson 1. You have the correct permissions within the designated Organization or Community. Note: In Figure 13, the Indicator has a Threat Rating of 3 skulls and a Confidence value of 71 points. This is an example, and your Indicators may have different values. The Tags applied during Structured Import are still present, and the top-left panel details the Indicator s Source and Description, which came from the source file as well. Source and Description are two examples of Attributes.

16 Attributes allow you to add structured or unstructured information to an entity to provide additional context. Attributes can be contextual, so that they are only available for entity types that make sense. For example, Source and Description could apply to anything in ThreatConnect. File Indicators, however, can have an Attribute that details the File s Signing Certificate details, which does not make sense for an Incident or an IP Address. ThreatConnect defines many Attribute types by default, but your Owner s Administrator can configure additional custom Attributes for your purposes. Viewing Attributes 1. To view an entity s Attributes, click on one of the Indicators you imported during Structured Import, and the Details/Pivot pop-up screen will appear. 2. Click the Details button, and the Details screen will display the Attributes panel at bottom-left (Figure 14). Figure 14: Attributes By default, your Indicator will always have a Source and a Description provided by the original analysis conducted. Indicators should always have a Source and Description populated to assist your fellow analysts in understanding what something is or why they should care about it.

17 Creating Attributes 1. To create a new Attribute for this Indicator, click on the +New button, and the Edit Attribute pop-up screen will appear (Figure 15). Figure 15: Creating an Attribute 2. Click on the Select a Type drop-down menu, and try different Attribute types to see what is available. Some Attributes, like Phase of Intrusion, have a pre-defined series of radio buttons, which allow you to pick from a single set of values. Others, like Additional Analysis and Context, allow for a free-form text entry. Choose Additional Analysis and Context, and enter some descriptive text into the presented text box. This text should be an example of something useful about the Indicator, since Attributes serve as answers to the questions that you would generally ask about an entity in ThreatConnect. 3. Click the Save button and other analysts will now be able to see this Attribute when viewing this Indicator.

18 Threat Rating and Confidence Value Indicators can be given a Threat Rating (0-5 skulls) and a Confidence value (0-100 points) to characterize their role and significance. For example, we may assign a malicious file a highly severe (Threat Rating of 5 out of 5 skulls) with a 100% certainty of that evaluation (100 out of 100 Confidence value points). However, a compromised website that serves that file to vulnerable victims may be less severe (Threat Rating of 2 out of 5 skulls) with less certainty (30 out of 100 Confidence value points). The top right of the Details Overview screen s Detail panel will display its current Threat Rating and Confidence value (Figure 16). Not only do these provide valuable insight to analysts when viewing the Details Overview screen, but also many automated integrations may take action (alerting, blocking, etc.) based on the values defined here. When viewing an Indicator that belongs to a Community, as in Figure 16, there will be two separate Threat Ratings and Confidence values, with one marked Yours, because members of a Community can each vote on a Threat Rating and Confidence value. These votes will be averaged and presented as the overall value of these rankings. Change the Threat Rating and Confidence value of your Indicators by clicking on the appropriate number of skulls or dragging the slider, respectively. Figure 16: Rating and Confidence

19 Comments and Linking ThreatConnect can capture dialogue associated with entities by using the Comments feature at the bottom right of any entity s Details Overview screen (Figure 17). Comments memorialize this dialogue and allow ThreatConnect to notify members that activity is buzzing around an entity. If any existing Comments surrounding an entity have been posted, they will be displayed below the text box in a threaded format. 1. Click inside the Add New Comment text box and enter the following message: This indicator is associated with the adversary known as. Figure 17: Adding a Comment 2. Click the Add Link button, and a pop-up screen will appear similar to the one used when creating an Association in Structured Import. Click on the Select Type drop-down menu, select Adversary, and then type KallySky in the search box. 3. Check the box next to the KallySky Adversary, and click the Add button. 4. Click the +Post button to submit your Comment. Your new Comment is now displayed below the text box, and it contains links on which analysts can click to immediately view the linked entity (Figure 18).

20 Figure 18: A Posted Comment This will create a link both inline, in the Comment, as well as a summary of linked items below the Comment as seen above in Figure 18. Comments may result in automated notifications for users, which are displayed from the DASHBOARD tab of the top navigation bar when first logging into ThreatConnect. Figure 19 illustrates a fully formed Comment detailing analysis conducted by a user named TCIRT-Jake. STOP! Take a SCREEN PRINT, and provide to your Instructor before continuing to Module #2.

21 Figure 19: TCIRT-Jake s Comment This is the end of Module 1. Please continue to Module 2.

22 Module 2 Phishing s Overview Phishing s often masquerade as realistic s and try to trick users into clicking on malicious links. These occurrences represent a great opportunity for capturing threat-intelligence information in conjunction with the Diamond Model. Each instance contains an Adversary (the address), Infrastructure (the sender), and Victim (the recipient). The ThreatConnect platform not only allows users to model those entities and their associations, but it can automate much of the legwork involved. Objectives Module 2 will teach you how to perform the following tasks in ThreatConnect: Import and process a suspicious Create relevant entities and associations Update analysis to include recent data Lesson 1 Automatically Ingesting a Suspicious ThreatConnect can ingest.eml or.msg files containing an occurrence of a suspicious . You can ingest these s into ThreatConnect both manually and via an automated mechanism. Lesson 1 will teach you how to ingest s into ThreatConnect automatically. Lesson 1 assumes the following: Your Organization or Community to receive s automatically. Your instructor has provided an inbox address (e.g., threatconnectyourregistrationcode@inbox.threatconnect.com) to which you can forward a malicious . You have identified an sample for processing and analysis. s may present valuable intelligence about the Adversary s infrastructure or capabilities, and not just within the body of the itself. Header information may contain IP Address Indicators (infrastructure) or mailer information (capabilities) that reveal some of the Adversary s behavior. In order to capture this information, a suspicious must be created as an attachment. ThreatConnect can ingest s that are

23 exported as an.msg file from Outlook (instructions), or an.eml file as used by many common mail providers such as Gmail (instructions). If you are unable to create a file based on your sample, your instructor can provide one to you. ThreatConnect can receive suspicious s as attachments to a phishing inbox. This inbox will open your attached and parse the body and header for Indicators of interest. 1. your.eml or.msg file to the address specified by your instructor, as seen in Figure 20. It may take a few minutes for ThreatConnect to receive and process your . When it is finished, it will be displayed in the Browse screen as an Group. Figure 20: Attachment 2. Click the BROWSE tab, then click the Activity filter button, and select s. Your will display with the original s subject in the Name column (Figure 21). Figure 21: Arrival Note: Your Browse screen must be configured properly with the correct Owner as explained in Module 1.

24 If you have trouble getting your to automatically ingest, you may use ThreatConnect s import feature following these instructions. Lesson 2 Creating Relevant Entities and Associations The above workflow for submitting an to ThreatConnect can scale across a wide spectrum. An individual analyst could submit a single suspicious sample, or an entire company could be forwarding its traffic to it! When an is submitted, it is a good idea to create the remaining pieces of the Diamond Model when appropriate. Lesson 2 will create and associate Infrastructure, Adversary, and Victim for this Group. Lesson 2 assumes the following: You have created an Group within your Organization or Community. Creating an Adversary Every has a sender, and that is captured automatically within ThreatConnect. If it is able, ThreatConnect will automatically parse out the originating address and create it as an Address Indicator. This Indicator will be associated with the original Group, and this is verified by conducting a pivot from your original Group (Figure 22).

25 Figure 22: Pivoting Off Your Note: There should be an Address Indicator based on this pivot, which reflects the original sender of the suspicious . You will be using this to create a new Adversary. If the sender was not created automatically, go to the top navigation bar and click the CREATE (+) tab to add an Address Indicator representing the s sender. 1. On the Details Overview screen of the sender s Address Indicator, give it a Threat Rating of 4 Skulls and a Confidence value of 100 points, as you learned in Module From the top navigation bar, click the CREATE (+) tab and select Adversary. The Create Adversary pop-up screen will appear (Figure 23.) Create an Adversary in your relevant Community or Organization, and use your name as part of the Adversary name (e.g., John Doe s Adversary ). Figure 23: Creating an Adversary 3. Click the Save button.

26 Creating Associations You can create new Associations with other entities, including your imported Group and the original sender address. 1. From your new Adversary s Details Overview screen, click the ASSOCIATIONS tab, and the Associations screen will appear (Figure 24). Figure 24: The Associations Screen 2. Click the +New Association button, and the Select an Association pop-up screen will appear (Figure 25). Similar to the Comments and Linking lesson from Module 1, this screen allows you to choose an entity type and associate Groups or Indicators with your Adversary. Click the Select Type drop-down menu and choose to associate the Adversary to the original Group. Click the Save button. Figure 25: Associating the Adversary to the Group

27 3. Click the Select Type drop-down menu once more, and choose Adress to associate the Adversary to the sender s from your sample (Figure 26). Click the Save button. Figure 26: Associating the Adversary to the Sender Address Creating Victims In the same manner that you crated an Adversary, you can create a Victim to show whom the targeted. 1. From the top navigation bar, click the CREATE (+) tab, and select Victim. The Create Victim pop-up screen will appear (Figure 27). Figure 27: Creating a Victim

28 2. Enter the required information, making sure to select the same Organization or Community as your Owner. Enter your own name as the Victim name and the name of your class or training group as the Organization. 3. Click the Save button. 4. Once you have created a Victim, it will have its own Details screen similar to other Groups and Indicators. Victims have their own special details and context, such as Work Location, but feel free to populate any details you wish. 5. From the Details screen, click on the ASSETS tab and the Assets screen will appear (Figure 28). This screen allows ThreatConnect analysts to track specific accounts or Assets that have been targeted or compromised for each Victim. Figure 28: The Assets Screen 6. To add an Asset to this Victim, click the +New Asset button, and the Create Asset pop-up screen will appear (Figure 29).

29 Figure 29: Creating a Victim Asset 7. Click on the Select Type drop-down menu, and choose Address. 8. Click in the Address box and enter your address. 9. Click on the Address Type drop-down menu and make a selection. 10. Click the Save button. Associating Victims You will now learn how to associate your Victim to your from the Group itself. 1. From your s Details screen, click the ASSOCIATIONS tab and the Associations screen will appear (Refer to Figure 24). 2. Click the +New Association button, and the Select an Association pop-up screen will appear (Figure 30). Figure 30: Associating to a Victim Asset

30 3. Click on the Select Type drop-down menu and choose Victim 4. Click in the search box and enter the name of your new Victim. Note: if there are multiple Victims with your name, you can identify your Victim by the asset you added. 5. Check the box by your Victim s name, and click the Save button. Remaining Associations You can now finish creating the remaining Associations as necessary. Model the Associations in a way that allows analysts to pivot and discover relationships. For example, if your sender had sent multiple s, a simple pivot would show multiple groups! Likewise, a Victim that has been targeted many times will have a long list of Groups when pivoting from that Victim. Note that Associations are bidirectional: associating an Group to an Adversary is the same as associating an Adversary to an Group. Make sure to make the following associations: Group to Sender Address Adversary to Group (done in Creating Associations) Adversary to Address Indicator Representing Sender (done in Creating Associations) Group to Victim Asset (done in Creating Victims) You have now created the related Groups, Indicators, and Associations, as depicted in Figure 31. Figure 31: Relationships as Modeled

31 Lesson 3 Updating Analysis to Include Recent Data Visit the Details screen for your Group and view the SCORE tab (Figure 33). ThreatConnect has assigned a score to your based on scoring rules defined by the System Administrator. These scoring rules add points for suspicious header fields, the inclusion of known bad Indicators, and more. After conducting some additional analysis, it is possible to obtain a more accurate score rating for your . Now that you have added a Threat Rating to the Address Indicator representing the sender, your score will change. Lesson 3 assumes the following: You have successfully imported an from Lesson 1. You have successfully created the sender as an Address Indicator and given it a Threat Rating and Confidence value. Your ThreatConnect Instance has been configured with proper -scoring rules.

32 1. From your Group Details screen, click the Update Analysis button and the Import screen will appear (Figure 32). This wizard will import an as though you had imported it manually. Figure 32: Import Wizard 2. The Import screen details what ThreatConnect was able to parse out from the header and body. Click the Next button, and the Score screen will appear (Figure 33). STOP! Take a SCREEN PRINT, and provide to your Instructor.

33 Figure 33: The Score Breakdown 3. The Score screen displays the updated Score Total for your Group and details the rules triggered to give it points. In this example, and from the Score Breakdown panel, the sender s Address Indicator was seen in multiple header fields and contributed 400 points to the score. This value is configured to be the product of the Indicator s Threat Rating (4 Skulls) and Confidence value (100 points). There are also rules that are not based on Indicators, such as certain header fields. This example also gives 300 points for originating in a Chinese time zone and 100 points for using a Chinese Client known as FoxMail. Click the Next button, and the Indicators screen will appear (Figure 34).

34 Figure 34: Adding a new Indicator from an Note: To prevent flooding the system with false positives, ThreatConnect will not automatically create all possible Indicators it recognizes when importing an . Instead, you can use this wizard to select which Indicators provide valuable intelligence. ThreatConnect will create the Indicators and associate them to their parent Group. 4. The Indicators screen highlights all of the identified Indicators in the s header and body. Note that these are based on regular expressions and, thus, may not be entirely accurate. The Indicators are color coded based on whether or not they exist in ThreatConnect: Indicators with a yellow background do not yet exist, while Indicators with a green or blue background exist in this or in another Owner,

35 respectively. Hover over a yellow-background Indicator and click the Add Indicator button. This will allow ThreatConnect to easily identify and parse Indicators that may warrant additional analysis or triage. Click the Next button and the Confirm screen will appear (Figure 35). Figure 35: Confirming the Analysis 5. On the Confirm screen, review the updated analysis of your . The score may have changed, new Indicators may have been added, and so on. 6. Click the Save button to commit your changes. The Group s Details screen will reappear. 7. Click on the ASSOCIATIONS tab, and the Indicators you added from the wizard above will be displayed, since they have automatically been associated to this Group (Figure 36).

36 Figure 36: The Newly Associated and Created Indicator Of course, new Indicators are not given a Threat Rating or Confidence value by default! Further analysis is required to determine how malicious is the phishing URL. As the picture comes into focus, that URL will receive Tags, Attributes, and a Threat Rating/Confidence value to illustrate its role in an attack and then you can update the Group s score again to reflect what you have learned! ThreatConnect is a registered trademark of ThreatConnect, Inc. Gmail is a trademark of Google, Inc. Outlook is a registered trademark of the Microsoft Corporation.