General

  • Target

    9033eb8237373f29ab501f3d705e4d6368c2655c9b8fb2122bdb93d141519f9a

  • Size

    952KB

  • Sample

    221201-bsg9aafd8w

  • MD5

    1b23fab35973b7f02afe4820582ef78a

  • SHA1

    a2cf2ab66f58a456b137e5371b718e1f12cf78f5

  • SHA256

    9033eb8237373f29ab501f3d705e4d6368c2655c9b8fb2122bdb93d141519f9a

  • SHA512

    2c491aeeaab19d3fcc324cd367c399c3dd7608c3dbd9693e76bbbdc7f6732018f80d7f6286cceb41dbdc6c978e335c6d96609d0d05b8a9715070abd0f8e75a74

  • SSDEEP

    24576:dzIw8LgLA5I7w6Zr8EocfBIbg/qqrUjLA:WMLnEYly90

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ultr4fucker.no-ip.org:1604

ultr4fucker.no-ip.org:1602

Mutex

DC_MUTEX-XSXR7S6

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    5t77d8EWQtDn

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    svchost

Targets

    • Target

      9033eb8237373f29ab501f3d705e4d6368c2655c9b8fb2122bdb93d141519f9a

    • Size

      952KB

    • MD5

      1b23fab35973b7f02afe4820582ef78a

    • SHA1

      a2cf2ab66f58a456b137e5371b718e1f12cf78f5

    • SHA256

      9033eb8237373f29ab501f3d705e4d6368c2655c9b8fb2122bdb93d141519f9a

    • SHA512

      2c491aeeaab19d3fcc324cd367c399c3dd7608c3dbd9693e76bbbdc7f6732018f80d7f6286cceb41dbdc6c978e335c6d96609d0d05b8a9715070abd0f8e75a74

    • SSDEEP

      24576:dzIw8LgLA5I7w6Zr8EocfBIbg/qqrUjLA:WMLnEYly90

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks