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General

  • Target

    JaffaCakes118_7e75f4732d9d7455f1e116b04220526d

  • Size

    2.3MB

  • Sample

    250317-sv9vrawqs4

  • MD5

    7e75f4732d9d7455f1e116b04220526d

  • SHA1

    7bf6573b5c93767e930117a41ecf7628f0b81c55

  • SHA256

    e3e54bda0e8ce3891c906e1bc447a5859b1d61e2659f0147f652d626869a7450

  • SHA512

    676f8a42646682d47a5143ede36b9dec5a57974395cb49e2af639e7c6cfd1698b55b9d8ff4109d5f8bd0e3ff97937020a169ae63aedecc6d2218402bb55be074

  • SSDEEP

    49152:h3SRXv4h1hJIhrWcnO5OrYImMnlsiRnrd:hi6TJcnIKmij

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

88.123.201.188:1604

Mutex

DC_MUTEX-85T8GMK

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    nMnHgerhyYUN

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target

      JaffaCakes118_7e75f4732d9d7455f1e116b04220526d

    • Size

      2.3MB

    • MD5

      7e75f4732d9d7455f1e116b04220526d

    • SHA1

      7bf6573b5c93767e930117a41ecf7628f0b81c55

    • SHA256

      e3e54bda0e8ce3891c906e1bc447a5859b1d61e2659f0147f652d626869a7450

    • SHA512

      676f8a42646682d47a5143ede36b9dec5a57974395cb49e2af639e7c6cfd1698b55b9d8ff4109d5f8bd0e3ff97937020a169ae63aedecc6d2218402bb55be074

    • SSDEEP

      49152:h3SRXv4h1hJIhrWcnO5OrYImMnlsiRnrd:hi6TJcnIKmij

    • 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

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks