Extracted

• • Target

    4aa398eb330d666b85164e1fdc28802c585071870e09576109523cdafc10ee7b.exe

  • Size

    1.8MB

  • MD5

    2a6e3f3275d854bf07aba2427baa6610

  • SHA1

    37d6411844b5d8a9d997f38f7718168b33cbc564

  • SHA256

    4aa398eb330d666b85164e1fdc28802c585071870e09576109523cdafc10ee7b

  • SHA512

    a6054ab62fc7415dafaca1dc273b42edd9680541e964b7b20d6b7ed07d65fb2ee01ea833bfedec9abc3687814449bb65f7c041ba462aed5cc44397e0ae2d4ef0

  • SSDEEP

    24576:4p8qWcx5AkyZrtziLafchZChMHTzC6SXYdzNyCzrgEctNjfRn5rEQi:wcJQLa0hs2HTbbtNhzrgZnp5rE

  Score

  10^/10

  dcratexecutioninfostealerpersistenceratgurcuadwarediscoveryprivilege_escalationstealer

  • DcRat

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

    ratinfostealerdcrat

  • Dcrat family

    dcrat

  • Gurcu family

    gurcu

  • Gurcu, WhiteSnake

    Gurcu aka WhiteSnake is a malware stealer written in C#.

    stealergurcu

  • Modifies WinLogon for persistence

    persistence

  • Process spawned unexpected child process

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

  • Boot or Logon Autostart Execution: Active Setup

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Downloads MZ/PE file

  • Checks computer location settings

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

  • Event Triggered Execution: Component Object Model Hijacking

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation

  • Executes dropped EXE

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • Installs/modifies Browser Helper Object

    BHOs are DLL modules which act as plugins for Internet Explorer.

    stealeradware

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory

  behavioral1behavioral2