General

  • Target
    pousti.ng.webp
  • Size 614KB
  • Sample260928-l96cjs1eka
  • SHA256 1904f9ec838edfcb4cf293b722bdf2281cf7d05fa5a2458dc3bd422d8fa7bb4b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      pousti.ng.webp
    • Size 614KB
    • SHA256 1904f9ec838edfcb4cf293b722bdf2281cf7d05fa5a2458dc3bd422d8fa7bb4b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

    • Sets service image path in registry

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

    • Uses Session Manager for persistence

      Creates Session Manager registry key to run executable early in system boot.

    • Checks computer location settings

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

    • 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

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • Writes a Windows system DLL name to a user directory

      A module named after a system DLL outside System32 can be loaded instead of the real one by a program searching that directory.

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

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

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Writes to the Master Boot Record (MBR)

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks