General

  • Target

    434880bfeef7f1d71259feadeea49bf12ff08ad0f2a69ae940cb1a00c32e0eaa

  • Size

    1.7MB

  • Sample

    241219-21k81ssrak

  • MD5

    88bc360785b47c484011f5eaf67735a2

  • SHA1

    1e868cecddcd99d570efa98d7966a5284d36b2c7

  • SHA256

    434880bfeef7f1d71259feadeea49bf12ff08ad0f2a69ae940cb1a00c32e0eaa

  • SHA512

    c52eae6960c1e499d569a35c961676897738ee844fb557bb46aa6e94f301b3b9305093d5389f3a1d70191c69e4591ce1a12a3e7581f5fe0813b388ca2d5d3509

  • SSDEEP

    49152:z+gYXZTD1VXUqzX7VwjvMoh1IFyuyigWnMzm6sDBKv:eTHUxUoh1IF9gl2

Malware Config

Targets

    • Target

      434880bfeef7f1d71259feadeea49bf12ff08ad0f2a69ae940cb1a00c32e0eaa

    • Size

      1.7MB

    • MD5

      88bc360785b47c484011f5eaf67735a2

    • SHA1

      1e868cecddcd99d570efa98d7966a5284d36b2c7

    • SHA256

      434880bfeef7f1d71259feadeea49bf12ff08ad0f2a69ae940cb1a00c32e0eaa

    • SHA512

      c52eae6960c1e499d569a35c961676897738ee844fb557bb46aa6e94f301b3b9305093d5389f3a1d70191c69e4591ce1a12a3e7581f5fe0813b388ca2d5d3509

    • SSDEEP

      49152:z+gYXZTD1VXUqzX7VwjvMoh1IFyuyigWnMzm6sDBKv:eTHUxUoh1IF9gl2

    • 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.

    • 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.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks