Overview

overview

10

Static

static

10

c830d62f6f...0N.exe

windows7-x64

10

c830d62f6f...0N.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    c830d62f6f45993891816dee47dee340N.exe
  • Size 1.7MB
  • Sample240721-qa36csteqp
  • SHA256 2338d4f0154b4295202b61eafb9c5e457112de784325f6fc38a587be668024e3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
dcratexecutioninfostealerpersistencerat

Malware Config

Targets

    • Target
      c830d62f6f45993891816dee47dee340N.exe
    • Size 1.7MB
    • SHA256 2338d4f0154b4295202b61eafb9c5e457112de784325f6fc38a587be668024e3
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    dcratexecutioninfostealerpersistencerat

    • DcRat

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

      ratinfostealerdcrat

    • Modifies WinLogon for persistence

      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.

      rat

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks