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General

  • Target

    ea26c634ff914ba026d0fafe1882a2a727a05740dc97da1f6a6d76c62af008afN.exe

  • Size

    1.9MB

  • Sample

    250205-jn5g1sxkbs

  • MD5

    36c46585bd77a2be351a74daa6c55490

  • SHA1

    37a02085b0e1f41e1476e04e8caabe4d65353f74

  • SHA256

    ea26c634ff914ba026d0fafe1882a2a727a05740dc97da1f6a6d76c62af008af

  • SHA512

    7b496ec38dcd8920b09c0d4c9813523c89378c238ee211f9b44c88dd4dcf91c91284a10c4ea8b7acff55b4836b834853cd62fd3f58ef0278770d45dde3d9e05d

  • SSDEEP

    24576:g5Z42w7NRqQ6pbq+1SSFqEdTJD926APlDFndO:W4Bx6g+1tFrdTd9YPFm

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

sepha.ddns.net:1604

Mutex

DC_MUTEX-Y6NCRQF

Attributes
  • InstallPath

    Skype\Skype.exe

  • gencode

    6yz9jgN489iC

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      ea26c634ff914ba026d0fafe1882a2a727a05740dc97da1f6a6d76c62af008afN.exe

    • Size

      1.9MB

    • MD5

      36c46585bd77a2be351a74daa6c55490

    • SHA1

      37a02085b0e1f41e1476e04e8caabe4d65353f74

    • SHA256

      ea26c634ff914ba026d0fafe1882a2a727a05740dc97da1f6a6d76c62af008af

    • SHA512

      7b496ec38dcd8920b09c0d4c9813523c89378c238ee211f9b44c88dd4dcf91c91284a10c4ea8b7acff55b4836b834853cd62fd3f58ef0278770d45dde3d9e05d

    • SSDEEP

      24576:g5Z42w7NRqQ6pbq+1SSFqEdTJD926APlDFndO:W4Bx6g+1tFrdTd9YPFm

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • 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.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks