General

  • Target

    https://github.com/Open-Shell/Open-Shell-Menu/releases/download/v4.4.191/OpenShellSetup_4_4_191.exe

  • Sample

    240415-3lblpsdd2s

Malware Config

Targets

    • Target

      https://github.com/Open-Shell/Open-Shell-Menu/releases/download/v4.4.191/OpenShellSetup_4_4_191.exe

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks