Extracted

Extracted

Extracted

• • Target

    https://mega.nz/file/7cdxFK4L#Io2Hue4hwSOKhugcwhvAvNvz7ViKQqmBYX7YynYEe58

  Score

  10^/10

  umbralxwormdefense_evasiondiscoveryevasionexecutionpersistenceratspywarestealertrojan

  • Detect Umbral payload

  • Detect Xworm Payload

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • UAC bypass

    evasiontrojan

  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

    stealerumbral

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Blocklisted process makes network request

  • 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

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Loads dropped DLL

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Adds Run key to start application

    persistence

  • 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

  • Suspicious use of SetThreadContext

  behavioral1