General

  • Target
    10092026_0906_09092026_building_permit_update.vbs.zip
  • Size 949B
  • Sample260910-k2zdlagc98
  • SHA256 5c14875733312043474271af6b898e3193432d6872d76e39ac9700146f78bd14
  • MD5 SHA1 SHA512 TLSH

Malware Config

Targets

    • Target
      building_permit_update.vbs
    • Size 1KB
    • SHA256 4804157b82bf443e78decfaf682d3fee541cc4b721365617e74f5ee3a6aa5f5b
    • MD5 SHA1 SHA512 TLSH
    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • Signed with revoked ConnectWise certificate

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

    • Checks computer location settings

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

    • 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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • 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

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks