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March 21, 2022Severity
High
Analysis Summary
Cobalt Strike first appeared in 2012 in response to alleged flaws in the Metasploit Framework, an existing red team (penetration testing) tool. Cobalt Strike 3.0 was released in 2015 as a stand-alone opponent emulation platform. However, researchers began observing threat actors using Cobalt Strike by 2016. Cobalt Strike’s use in hostile activities was previously connected with huge cybercriminal operations like TA3546 and APT40. Two-thirds of detected Cobalt hit efforts from 2016 to 2018 were attributable to well-resourced cybercrime organizations or APT groups, according to researchers.
Cobalt Strike lets the attacker install a ‘Beacon’ agent on the target PC which provides the attacker with a plethora of capabilities, including command execution, file transfer, keylogging, mimikatz, port scanning, and privilege escalation. Cobalt Strike includes a toolkit called Artifact Kit that is used to create shellcode loaders.
Impact
- Data Exfiltration
- Information Theft
Indicators of Compromise
MD5
- df0fbcf9451327b78b616bb1212494d2
SHA-256
- 6b8f70a3be866970abe2c894bab000d8c0ff5ef4413a421997448e1fcacea0f8
SHA-1
- 16e20f7e56cbb04b1663b3c380d6ef0657b3b4dd
Remediation
- Block the threat indicators at their respective controls.
- Search for IOCs in your environment.