Extracted

• • Target

    https://cdn.discordapp.com/attachments/1300886873148756050/1300960864043663533/winws.exe?ex=6722bdb8&is=67216c38&hm=6421a3d612c9b6c41279c7a97310aba4b86dbc69dc16a3bc8027d28cde7073e8&

  Score

  10^/10

  dcratorcusrobloxdefense_evasiondiscoveryevasionexecutioninfostealerpersistenceprivilege_escalationratspywarestealertrojan

  • Contains code to disable Windows Defender

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • DcRat

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

    ratinfostealerdcrat

  • Dcrat family

    dcrat

  • Modifies WinLogon for persistence

    persistence

  • Modifies Windows Defender Real-time Protection settings

    evasiontrojan

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

    ratspywarestealerorcus

  • Orcus family

    orcus

  • Orcus main payload

  • Process spawned unexpected child process

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

  • UAC bypass

    evasiontrojan

  • DCRat payload

    rat

  • Orcurs Rat Executable

  • 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.

  • Drops startup file

  • Executes dropped EXE

  • Reads user/profile data of web browsers

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer

  • Windows security modification

    evasiontrojan

  • Adds Run key to start application

    persistence

  • Checks whether UAC is enabled

    evasiontrojan

  • Hijack Execution Flow: Executable Installer File Permissions Weakness

    Possible Turn off User Account Control's privilege elevation for standard users.

    defense_evasionpersistenceprivilege_escalation

  • Legitimate hosting services abused for malware hosting/C2

  • Drops file in System32 directory

  behavioral1behavioral2behavioral3behavioral4behavioral5