General

  • Target

    85d55e725d9e82b4757f4c0362af23a64f85d008e66e2d2b444af2f5a635934dN

  • Size

    1.8MB

  • Sample

    241109-fcaays1jan

  • MD5

    c206496a6d3d6669de00dda0072fee40

  • SHA1

    663a69b6bf85db167c51e8e923318679958cc3f0

  • SHA256

    85d55e725d9e82b4757f4c0362af23a64f85d008e66e2d2b444af2f5a635934d

  • SHA512

    8d2bd76482cee87c875f9115d0b6898172c12d183df01b9550af7a74d5db6382e495395e5e14f28460ce63ee60bbad221997edaa8f3793b5d72fc5d5c9021028

  • SSDEEP

    49152:mhjAJVllHZrhbBruPk+xjSMX4ODTDF8OcFSkMh:mgVTVXYNX9mOWSkM

Malware Config

Targets

    • Target

      85d55e725d9e82b4757f4c0362af23a64f85d008e66e2d2b444af2f5a635934dN

    • Size

      1.8MB

    • MD5

      c206496a6d3d6669de00dda0072fee40

    • SHA1

      663a69b6bf85db167c51e8e923318679958cc3f0

    • SHA256

      85d55e725d9e82b4757f4c0362af23a64f85d008e66e2d2b444af2f5a635934d

    • SHA512

      8d2bd76482cee87c875f9115d0b6898172c12d183df01b9550af7a74d5db6382e495395e5e14f28460ce63ee60bbad221997edaa8f3793b5d72fc5d5c9021028

    • 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