General

  • Target

    421e48716838b07749b30132827cd63bf478e7f3a59fc5517a5d8df5537689a6N

  • Size

    1.3MB

  • Sample

    241106-g36brawejq

  • MD5

    b3242661967006ba6f655869554c3f20

  • SHA1

    3df8fab6dc60e7d22d46fe21236bfbfd1434a77f

  • SHA256

    421e48716838b07749b30132827cd63bf478e7f3a59fc5517a5d8df5537689a6

  • SHA512

    28f6cabeec727a105e96a57e13e220865d80916a1f3fb762bcc9d33a8408a26d0e661a9a5a620eb471b0b9b54697cd83ff91e4c99ddc420ebb1fe5fa642756f5

  • SSDEEP

    24576:oRmJkcoQricOIQxiZY1ianytXiVgxSJ2+lCVSWZlkhDyI6t8DB6btGF1/ATNNJ3:NJZoQrbTFZY1ianUiWxSJuplkZVlIbEw

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ipresolver.zapto.org:1604

Mutex

DC_MUTEX-1X48CDE

Attributes
  • InstallPath

    Skype/Skype.exe

  • gencode

    VSt3RyM0B19F

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Skype

Targets

    • Target

      421e48716838b07749b30132827cd63bf478e7f3a59fc5517a5d8df5537689a6N

    • Size

      1.3MB

    • MD5

      b3242661967006ba6f655869554c3f20

    • SHA1

      3df8fab6dc60e7d22d46fe21236bfbfd1434a77f

    • SHA256

      421e48716838b07749b30132827cd63bf478e7f3a59fc5517a5d8df5537689a6

    • SHA512

      28f6cabeec727a105e96a57e13e220865d80916a1f3fb762bcc9d33a8408a26d0e661a9a5a620eb471b0b9b54697cd83ff91e4c99ddc420ebb1fe5fa642756f5

    • SSDEEP

      24576:oRmJkcoQricOIQxiZY1ianytXiVgxSJ2+lCVSWZlkhDyI6t8DB6btGF1/ATNNJ3:NJZoQrbTFZY1ianUiWxSJuplkZVlIbEw

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Modifies security service

    • Windows security bypass

    • Adds policy Run key to start application

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • 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.

    • Drops startup file

    • Windows security modification

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks