General

  • Target
    a07762926413974d6a5e39c3a5a467cf.exe
  • Size 3.2MB
  • Sample221011-cszzrsagc8
  • SHA256 8c7e227bdb4c0b55dfd41b29614bd1b852132c65ec90a564ebf67230d421abc8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      a07762926413974d6a5e39c3a5a467cf.exe
    • Size 3.2MB
    • SHA256 8c7e227bdb4c0b55dfd41b29614bd1b852132c65ec90a564ebf67230d421abc8
    • MD5 SHA1 SHA512 SSDEEP
    • 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.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks