General

  • Target

    https://drive.google.com/uc?id=12WBT8qXg0FZyiIfnQfimIrN-sUpoTREP&export=download

  • Sample

    230331-zl5b8sef8t

Malware Config

Targets

    • Target

      https://drive.google.com/uc?id=12WBT8qXg0FZyiIfnQfimIrN-sUpoTREP&export=download

    • UAC bypass

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Registers COM server for autorun

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks