General

  • Target
    gyns.exe
  • Size 385KB
  • Sample201109-evhhclypta
  • SHA256 67f5353bdabe4d52ecb054b0ef0bd7faa2bc647843b56d3fab36e749b98a1e09
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • remcos

C2
  • 194.5.99.218:2060

  • 10.99.218.6:2060

  • 10.99.218.6:2404

Targets

    • Target
      gyns.exe
    • Size 385KB
    • SHA256 67f5353bdabe4d52ecb054b0ef0bd7faa2bc647843b56d3fab36e749b98a1e09
    • MD5 SHA1 SHA512
    • Modifies WinLogon for persistence

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Adds Run key to start application

    • Modifies WinLogon

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks