General

  • Target

    JaffaCakes118_31412729528ff5bc80c5582bbe784628

  • Size

    315KB

  • Sample

    250228-dvr8dazpy4

  • MD5

    31412729528ff5bc80c5582bbe784628

  • SHA1

    26bc7dc6a6d763a96925f41f34d78ca6157ee4fc

  • SHA256

    1e1fe04cd20a5b8b47be1188c98ce2979b4c56257967f3bff3218a194b9d5efb

  • SHA512

    3628cc231e19dfaa66466d17b02db07967cad08068a57e002c4bd070490232d2450848ac0d2fa900553f108abc8ef0691c11b2109b5034ba21014790e072847b

  • SSDEEP

    6144:LSTv34CFfifD2gVKVTQQ249HZ52KTh9XKOCgLJacj5/AZtRsO:LEPXgr8VMQDT52WXKq9fj5/AZjv

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

fugitif.no-ip.org:2702

Mutex

DC_MUTEX-GJKJZWL

Attributes
  • InstallPath

    driver\winupdate.exe

  • gencode

    EQ=TzK#norn1

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_31412729528ff5bc80c5582bbe784628

    • Size

      315KB

    • MD5

      31412729528ff5bc80c5582bbe784628

    • SHA1

      26bc7dc6a6d763a96925f41f34d78ca6157ee4fc

    • SHA256

      1e1fe04cd20a5b8b47be1188c98ce2979b4c56257967f3bff3218a194b9d5efb

    • SHA512

      3628cc231e19dfaa66466d17b02db07967cad08068a57e002c4bd070490232d2450848ac0d2fa900553f108abc8ef0691c11b2109b5034ba21014790e072847b

    • SSDEEP

      6144:LSTv34CFfifD2gVKVTQQ249HZ52KTh9XKOCgLJacj5/AZtRsO:LEPXgr8VMQDT52WXKq9fj5/AZjv

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Windows security bypass

    • 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

    • Windows security modification

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks