General

  • Target
    file01.ps1
  • Size 5KB
  • Sample260703-1lfvbacy2j
  • SHA256 ce7fbd87947193cea45da7e1c339fe7bad37d77ec0ec8de10fc90c066fdf7175
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://cdn.cloudflare.steamstatic.com/client/installer/SteamSetup.exe

  • exe.dropper

    https://netstorage.opera.com/web/OperaGXSetup.exe

Targets

    • Target
      file01.ps1
    • Size 5KB
    • SHA256 ce7fbd87947193cea45da7e1c339fe7bad37d77ec0ec8de10fc90c066fdf7175
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Boot or Logon Autostart Execution: Port Monitors

      Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Indicator Removal: Clear Persistence

      remove IFEO.

    • Installs/modifies Browser Helper Object

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

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks