General

  • Target

    f27b3b5adfa411aedf6daabe9e962d8a83fa3185ac9544de6191b3c64a9bd216

  • Size

    1.8MB

  • Sample

    241102-vs31ja1bkp

  • MD5

    8392193c5fb165f60a6c16e76cf22e7c

  • SHA1

    142c9abfc95aeadab045c315ac8cc65539a8124e

  • SHA256

    f27b3b5adfa411aedf6daabe9e962d8a83fa3185ac9544de6191b3c64a9bd216

  • SHA512

    80328d829071ed38655eea9fcaade51244abb0f669438dd1d80b39445d663d9fda7d6bbc64a8467aa02af47d3d83d4e826488827a1125152735fce06c216d5fb

  • SSDEEP

    49152:mhjAJVllHZrhbBruPk+xjSMX4ODTDF8OcFSkMh:mgVTVXYNX9mOWSkM

Malware Config

Targets

    • Target

      f27b3b5adfa411aedf6daabe9e962d8a83fa3185ac9544de6191b3c64a9bd216

    • Size

      1.8MB

    • MD5

      8392193c5fb165f60a6c16e76cf22e7c

    • SHA1

      142c9abfc95aeadab045c315ac8cc65539a8124e

    • SHA256

      f27b3b5adfa411aedf6daabe9e962d8a83fa3185ac9544de6191b3c64a9bd216

    • SHA512

      80328d829071ed38655eea9fcaade51244abb0f669438dd1d80b39445d663d9fda7d6bbc64a8467aa02af47d3d83d4e826488827a1125152735fce06c216d5fb

    • SSDEEP

      49152:mhjAJVllHZrhbBruPk+xjSMX4ODTDF8OcFSkMh:mgVTVXYNX9mOWSkM

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Checks whether UAC is enabled

MITRE ATT&CK Enterprise v15

Tasks