General

  • Target
    Voicemail.zip
  • Size 489B
  • Sample261030-pf4teaywcs
  • SHA256 ec11ca8c0f949e299fc93998c97d9131326c076a00d475427f3ad1ea07f93938
  • MD5 SHA1 SHA512 TLSH

Malware Config

Targets

    • Target
      Voicemail.vbs
    • Size 500B
    • SHA256 190c915d2b4733d2c3e5287c6908957b0e0a14e13411df884b9e7856abaa2f22
    • 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.

    • 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

    • Use of msiexec (install) with remote resource

    • Badlisted process makes network request

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

    • 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