General

  • Target
    ZoomWorkspace-5.8.23.bat
  • Size 3KB
  • Sample260226-pp6pcsew9g
  • SHA256 6233435afaf8a69aa4bd4b5d40b973b63189d0a36f72c5343bcc7d2c94474272
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://connectfilesview.click/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest&c=New&c=OT&c=OT&c=Win&c=&c=&c=&c=

Targets

    • Target
      ZoomWorkspace-5.8.23.bat
    • Size 3KB
    • SHA256 6233435afaf8a69aa4bd4b5d40b973b63189d0a36f72c5343bcc7d2c94474272
    • MD5 SHA1 SHA512 TLSH
    • Badlisted process makes network request

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

    • Binary is signed using a ConnectWise certificate revoked for key compromise.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Sets service image path in registry

    • ConnectWise ScreenConnect remote access tool

      ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

    • 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

    • Enumerates connected drives

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

    • Boot or Logon Autostart Execution: Authentication Package

      Suspicious Windows Authentication Registry Modification.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks