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Rewterz Threat Alert – Cobalt Strike Malware – Active IOCs

Severity

Medium

Analysis Summary

Cobalt Strike is a paid penetration testing product that allows an attacker to deploy an agent named ‘Beacon’ on the victim machine. Beacon includes a wealth of functionality to the attacker, including, but not limited to command execution, keylogging, file transfer, SOCKS proxying, privilege escalation, mimikatz, port scanning, and lateral movement. Beacon is in-memory/file-less, in that it consists of stageless or multi-stage shellcode that once loaded by exploiting a vulnerability or executing a shellcode loader, will reflectively load itself into the memory of a process without touching the disk. It supports C2 and staging over HTTP, HTTPS, DNS, SMB named pipes as well as forward and reverse TCP; Beacons can be daisy-chained. Cobalt Strike comes with a toolkit for developing shellcode loaders, called Artifact Kit.

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Impact

  • Data Exfiltration
  • Information Theft

Indicators of Compromise

Domain Name

  • compassfinancial[.]ca
  • acronisupdater[.]com
  • rapidmomentum[.]net
  • rdkreligiousnews[.]com
  • karasmanar[.]com
  • naratygam[.]com
  • zaebkaor[.]com
  • baidanaran[.]com

IP

  • 185[.]150[.]117[.]83
  • 161[.]35[.]133[.]152
  • 162[.]33[.]179[.]161
  • 162[.]33[.]178[.]236
  • 91[.]132[.]3[.]210

Remediation

  • Block all threat indicators at your respective controls.
  • Search for IOCs in your environment.