General

  • Target
    WindowsUpdate.exe
  • Size 19.9MB
  • Sample260703-3fx8hsdt6p
  • SHA256 a48cd0cdf81099014e4fba7634733a2b63055fb963ce1a1798b89f20189453f2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      WindowsUpdate.exe
    • Size 19.9MB
    • SHA256 a48cd0cdf81099014e4fba7634733a2b63055fb963ce1a1798b89f20189453f2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • A stealer written in Python and packaged with Pyinstaller

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Family: blankgrabber

      Blankgrabber is an infostealer written in Python and packaged with Pyinstaller.

    • 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.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Network Share Discovery

      Attempt to gather information on host network.

    • Checks system information in the registry

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

MITRE ATT&CK Enterprise v16

Tasks