General

  • Target

    https://workupload.com/file/e3Ntgx8nVXy

  • Sample

    240813-1h4f7sxela

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7488189478:AAH6VIMvTK1qt_asd4dAuNYuoUWUeh-2Kvg/sendPhot

Targets

    • Target

      https://workupload.com/file/e3Ntgx8nVXy

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

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

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • 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

MITRE ATT&CK Enterprise v15

Tasks