General

  • Target

    https://github.com/fxaustountermed/WaveInstaller/archive/refs/heads/main.zip

  • Sample

    240904-snnzpsthle

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:54183

193.161.193.99:54183

blakedonahue-54183.portmap.host:54183

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    WaveUpdater.exe

Targets

    • Target

      https://github.com/fxaustountermed/WaveInstaller/archive/refs/heads/main.zip

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Creates new service(s)

    • Stops running service(s)

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • 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.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks