General

  • Target

    209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9.exe

  • Size

    3.3MB

  • Sample

    240324-cgvkxagc68

  • MD5

    6eebd58aa9cc3949cd47d9610093bf5d

  • SHA1

    a9d2b82ee51dfac91aa0a0c991e38882fed49fe4

  • SHA256

    209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9

  • SHA512

    b2898c6623ff1d3c6a8186728543b5e8f1d9ef0fe34ada5c319290272067651f51c710705633c1ee28b713ddafa56370b6c929aab251b68df4bf3e4150baf4cf

  • SSDEEP

    98304:kl7BhTkh8maw0whCK5bMGrawUtQAD/cEsav8EXy:+Caw5bMeU2AD/cRc8Sy

Malware Config

Targets

    • Target

      209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9.exe

    • Size

      3.3MB

    • MD5

      6eebd58aa9cc3949cd47d9610093bf5d

    • SHA1

      a9d2b82ee51dfac91aa0a0c991e38882fed49fe4

    • SHA256

      209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9

    • SHA512

      b2898c6623ff1d3c6a8186728543b5e8f1d9ef0fe34ada5c319290272067651f51c710705633c1ee28b713ddafa56370b6c929aab251b68df4bf3e4150baf4cf

    • SSDEEP

      98304:kl7BhTkh8maw0whCK5bMGrawUtQAD/cEsav8EXy:+Caw5bMeU2AD/cRc8Sy

    • DcRat

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

    • Modifies WinLogon for persistence

    • 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.

    • Detects executables packed with SmartAssembly

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks