SombRAT
Techniques Used |
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Domain | ID | Name | Use | |
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Enterprise | T1071 | .004 | Application Layer Protocol: DNS |
SombRAT can communicate over DNS with the C2 server.(Citation: BlackBerry CostaRicto November 2020)(Citation: FireEye FiveHands April 2021) |
Enterprise | T1560 | .003 | Archive Collected Data: Archive via Custom Method |
SombRAT has encrypted collected data with AES-256 using a hardcoded key.(Citation: BlackBerry CostaRicto November 2020) |
Enterprise | T1074 | .001 | Data Staged: Local Data Staging |
SombRAT can store harvested data in a custom database under the %TEMP% directory.(Citation: BlackBerry CostaRicto November 2020) |
Enterprise | T1568 | .002 | Dynamic Resolution: Domain Generation Algorithms |
SombRAT can use a custom DGA to generate a subdomain for C2.(Citation: BlackBerry CostaRicto November 2020) |
Enterprise | T1573 | .001 | Encrypted Channel: Symmetric Cryptography |
SombRAT has encrypted its C2 communications with AES.(Citation: BlackBerry CostaRicto November 2020) |
.002 | Encrypted Channel: Asymmetric Cryptography |
SombRAT can SSL encrypt C2 traffic.(Citation: BlackBerry CostaRicto November 2020)(Citation: FireEye FiveHands April 2021)(Citation: CISA AR21-126A FIVEHANDS May 2021) |
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Enterprise | T1564 | .010 | Hide Artifacts: Process Argument Spoofing |
SombRAT has the ability to modify its process memory to hide process command-line arguments.(Citation: FireEye FiveHands April 2021) |
Enterprise | T1070 | .004 | Indicator Removal: File Deletion |
SombRAT has the ability to run |
Enterprise | T1055 | .001 | Process Injection: Dynamic-link Library Injection |
SombRAT can execute |
References
- CISA. (2021, May 6). Analysis Report (AR21-126A) FiveHands Ransomware. Retrieved June 7, 2021.
- McLellan, T. and Moore, J. et al. (2021, April 29). UNC2447 SOMBRAT and FIVEHANDS Ransomware: A Sophisticated Financial Threat. Retrieved June 2, 2021.
- The BlackBerry Research and Intelligence Team. (2020, November 12). The CostaRicto Campaign: Cyber-Espionage Outsourced. Retrieved May 24, 2021.
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