Overview

overview

10

Static

static

10

2f77a20ba2...5e.exe

windows7-x64

10

2f77a20ba2...5e.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    2f77a20ba2eacdaf74acc2be52db30061d378a817ea3ac1812ef1c95f23f735e.exe
  • Size 3.0MB
  • Sample240624-bfnwassblc
  • SHA256 2f77a20ba2eacdaf74acc2be52db30061d378a817ea3ac1812ef1c95f23f735e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
dcratevasionexecutioninfostealerrattrojan

Malware Config

Targets

    • Target
      2f77a20ba2eacdaf74acc2be52db30061d378a817ea3ac1812ef1c95f23f735e.exe
    • Size 3.0MB
    • SHA256 2f77a20ba2eacdaf74acc2be52db30061d378a817ea3ac1812ef1c95f23f735e
    • 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

    • Detects executables packed with SmartAssembly

    • 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