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BabyShark

BabyShark is a Microsoft Visual Basic (VB) script-based malware family that is believed to be associated with several North Korean campaigns. [1]

ID: S0414
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Type: MALWARE
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Platforms: Windows
Version: 1.2
Created: 07 October 2019
Last Modified: 12 March 2021
Enterprise Layer
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Techniques Used

Domain ID Name Use
Enterprise T1547 .001 Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

BabyShark has added a Registry key to ensure all future macros are enabled for Microsoft Word and Excel as well as for additional persistence.[1][2]
Enterprise T1059 .003 Command and Scripting Interpreter: Windows Command Shell

BabyShark has used cmd.exe to execute commands.[1]

Enterprise T1132 .001 Data Encoding: Standard Encoding

BabyShark has encoded data using certutil before exfiltration.[1]
Enterprise T1140 Deobfuscate/Decode Files or Information

BabyShark has the ability to decode downloaded files prior to execution.[2]
Enterprise T1083 File and Directory Discovery

BabyShark has used dir to search for "programfiles" and "appdata".[1]

Enterprise T1070 .004 Indicator Removal on Host: File Deletion

BabyShark has cleaned up all files associated with the secondary payload execution.[3]
Enterprise T1105 Ingress Tool Transfer

BabyShark has downloaded additional files from the C2.[3][2]
Enterprise T1056 .001 Input Capture: Keylogging

BabyShark has a PowerShell-based remote administration ability that can implement a PowerShell or C# based keylogger.[3]
Enterprise T1057 Process Discovery

BabyShark has executed the tasklist command.[1]

Enterprise T1012 Query Registry

BabyShark has executed the reg query command for HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default.[1]

Enterprise T1053 .005 Scheduled Task/Job: Scheduled Task

BabyShark has used scheduled tasks to maintain persistence.[4]
Enterprise T1218 .005 System Binary Proxy Execution: Mshta

BabyShark has used mshta.exe to download and execute applications from a remote server.[2]
Enterprise T1082 System Information Discovery

BabyShark has executed the ver command.[1]

Enterprise T1016 System Network Configuration Discovery

BabyShark has executed the ipconfig /all command.[1]

Enterprise T1033 System Owner/User Discovery

BabyShark has executed the whoami command.[1]

Groups That Use This Software

ID Name References
G0094 Kimsuky

[2][5][4]

References

  1. Unit 42. (2019, February 22). New BabyShark Malware Targets U.S. National Security Think Tanks. Retrieved October 7, 2019.
  2. CISA, FBI, CNMF. (2020, October 27). https://us-cert.cisa.gov/ncas/alerts/aa20-301a. Retrieved November 4, 2020.
  3. Lim, M.. (2019, April 26). BabyShark Malware Part Two – Attacks Continue Using KimJongRAT and PCRat . Retrieved October 7, 2019.
  1. Crowdstrike. (2020, March 2). 2020 Global Threat Report. Retrieved December 11, 2020.
  2. Dahan, A. et al. (2020, November 2). Back to the Future: Inside the Kimsuky KGH Spyware Suite. Retrieved November 6, 2020.