General

  • Target
    EvolveOptimizer-Setup.exe
  • Size 245.2MB
  • Sample260712-bvm8badz8s
  • SHA256 a31eec9a6137c3da03b0f87869087f100ddf8d1e60c7ce155f9deb9b2ba90284
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      EvolveOptimizer-Setup.exe
    • Size 245.2MB
    • SHA256 a31eec9a6137c3da03b0f87869087f100ddf8d1e60c7ce155f9deb9b2ba90284
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Matrix Ransomware

      Targeted ransomware with information collection and encryption functionality.

    • Modifies boot configuration data using bcdedit

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Deletes itself

    • 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

    • Modifies system executable filetype association

    • 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.

    • Checks whether UAC is enabled

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Installs/modifies Browser Helper Object

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

    • Modifies powershell logging option

    • Network Share Discovery

      Attempt to gather information on host network.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks