General

  • Target
    darkmoon_v2.zip
  • Size 8.2MB
  • Sample240602-spp86agd23
  • SHA256 2a6a28e5ec050a9039d62bf2cd0075df7324ebb9e3c9130ca417c8381796445e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 1.0.0.0

Botnet
  • v2.2.6 | SeroXen

C2
  • seroooooxeen.chickenkiller.com:5059

Mutex
  • f953c0af-702a-46b5-ad07-d900b11c5cd9

Attributes
  • encryption_key

    458790DC6E62EEB3043B4566BF95CDAF711F1EC0

  • install_name

    .exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    3000

Targets

    • Target
      darkmoon v2/lib/AyBYMBjlvU.bat
    • Size 12.6MB
    • SHA256 9d0b440b61b239bc3406d67bf7ae8baf1ceef65923e8558ce3a3c1a3c4a5e22a
    • MD5 SHA1 SHA512 SSDEEP
    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • Target
      darkmoon v2/lib/DarkMoon_Gen.exe
    • Size 340KB
    • SHA256 c147148fa809e238efc3e60b2ed129a93f11694b31d194f7347ddfbb6b82ba20
    • MD5 SHA1 SHA512 SSDEEP
    Score
    6/10
    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Target
      darkmoon v2/start.bat
    • Size 82B
    • SHA256 c07fbd6c49d83eb8399435f9972551d2c73a29e5914a25640639191d187dd80d
    • MD5 SHA1 SHA512
    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks