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General

  • Target

    0624a3641140b1e609f181854519fa328dd04132f29d30da4eccca73e777f867

  • Size

    683KB

  • Sample

    250319-jfbvqstwgv

  • MD5

    9dd53b03345030bc7decf3adbe608ce7

  • SHA1

    5999c980dfb72ed83cb4196a310cf2896650f997

  • SHA256

    0624a3641140b1e609f181854519fa328dd04132f29d30da4eccca73e777f867

  • SHA512

    a904e90ed7c076de06a2deaf929cbd0f63844c6a09664f068d1b2c41e34ab3cad365339de3e6868cc43de38d5246ac6749ee596883e9a720573043e4f7a36f5a

  • SSDEEP

    12288:cQ2T1tTzrnmsm81wCfvXsKbDTo7E3TlQCGVUPShkQ2lE1ToXi7SnATyQYzTa3mY:crT1t3dd8KvTo7E3TPOUPSaA1Tt7hTyC

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

startpc.localto.net:5139

Mutex

DC_MUTEX-YNHY3V1

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    bbBGhWmhMoJH

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target

      0624a3641140b1e609f181854519fa328dd04132f29d30da4eccca73e777f867

    • Size

      683KB

    • MD5

      9dd53b03345030bc7decf3adbe608ce7

    • SHA1

      5999c980dfb72ed83cb4196a310cf2896650f997

    • SHA256

      0624a3641140b1e609f181854519fa328dd04132f29d30da4eccca73e777f867

    • SHA512

      a904e90ed7c076de06a2deaf929cbd0f63844c6a09664f068d1b2c41e34ab3cad365339de3e6868cc43de38d5246ac6749ee596883e9a720573043e4f7a36f5a

    • SSDEEP

      12288:cQ2T1tTzrnmsm81wCfvXsKbDTo7E3TlQCGVUPShkQ2lE1ToXi7SnATyQYzTa3mY:crT1t3dd8KvTo7E3TPOUPSaA1Tt7hTyC

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Windows security bypass

    • 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.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • Adds Run key to start application

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks