General

  • Target

    DC.exe

  • Size

    1.6MB

  • Sample

    240530-nam32afc4v

  • MD5

    b754968dfdb9bcd8b3bc4463abc81a18

  • SHA1

    1b0890ccd44584417f08ebfff3c82d1c283b989b

  • SHA256

    4a6728a33527bde13ac3dd3a5a1e620721891fac540d69f90f233f23ae2f4463

  • SHA512

    24bb5d65956e6750d348fb4eb4e2c4206671a6ac24923b8094c83ce2105dacba9422e0b832dedc79f91164041bd6df8c348504810b8cbb864e5aedd4473d0cbc

  • SSDEEP

    24576:U2G/nvxW3Ww0t9c3SSFQEo3bZ5GZnTVhm4UPCmEkDo3zVsbovHXgk:UbA309ciIo3tqr0UDth

Malware Config

Targets

    • Target

      DC.exe

    • Size

      1.6MB

    • MD5

      b754968dfdb9bcd8b3bc4463abc81a18

    • SHA1

      1b0890ccd44584417f08ebfff3c82d1c283b989b

    • SHA256

      4a6728a33527bde13ac3dd3a5a1e620721891fac540d69f90f233f23ae2f4463

    • SHA512

      24bb5d65956e6750d348fb4eb4e2c4206671a6ac24923b8094c83ce2105dacba9422e0b832dedc79f91164041bd6df8c348504810b8cbb864e5aedd4473d0cbc

    • SSDEEP

      24576:U2G/nvxW3Ww0t9c3SSFQEo3bZ5GZnTVhm4UPCmEkDo3zVsbovHXgk:UbA309ciIo3tqr0UDth

    • DcRat

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

    • 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.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

MITRE ATT&CK Enterprise v15

Tasks