General

  • Target
    Adobe%20Acrobat.bat
  • Size 1KB
  • Sample260831-gyk51syset
  • SHA256 362720ba87932b975d2c961e82e54e39ddf301b4e29dd24e844fe46abaf79cc0
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://104.193.195.77:8040/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest

Targets

    • Target
      Adobe%20Acrobat.bat
    • Size 1KB
    • SHA256 362720ba87932b975d2c961e82e54e39ddf301b4e29dd24e844fe46abaf79cc0
    • MD5 SHA1 SHA512 TLSH
    • Badlisted process makes network request

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

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • 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.

    • 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