Overview

overview

10

Static

static

10

DCRatBuild.exe

windows7-x64

10

DCRatBuild.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    DCRatBuild.exe
  • Size 1.8MB
  • Sample240704-kcazpsvbpe
  • SHA256 f8a42260874653f5bbcffb14cb8a59176e89bbe54d50e2727087e6a46ca12e91
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
dcratevasionexecutioninfostealerrattrojan

Malware Config

Targets

    • Target
      DCRatBuild.exe
    • Size 1.8MB
    • SHA256 f8a42260874653f5bbcffb14cb8a59176e89bbe54d50e2727087e6a46ca12e91
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    dcratevasionexecutioninfostealerrattrojan

    • DcRat

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

      ratinfostealerdcrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

      evasiontrojan

    • 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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

      evasiontrojan
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks