General

  • Target

    https://upload2.delivery.autodesk.com/WebInstall3StubGUI-1748454144068.exe?response-content-disposition=attachment%3B%20filename%20%3D%22Autodesk_DWG_TrueView_2026_en-US_setup_webinstall.exe%22%20%3B%20filename%2A%3DUTF-8%27%27Autodesk_DWG_TrueView_2026_en-US_setup_webinstall.exe

  • Sample

    250529-jd1q3sem3y

Malware Config

Targets

    • Target

      https://upload2.delivery.autodesk.com/WebInstall3StubGUI-1748454144068.exe?response-content-disposition=attachment%3B%20filename%20%3D%22Autodesk_DWG_TrueView_2026_en-US_setup_webinstall.exe%22%20%3B%20filename%2A%3DUTF-8%27%27Autodesk_DWG_TrueView_2026_en-US_setup_webinstall.exe

    • Renames multiple (58) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks