General

  • Target
    temp.exe
  • Size 712KB
  • Sample260721-wsetday1cw
  • SHA256 0e56a3b073bb2a8fae5d4732d40c6e93b5507fb6ba321322f34f99f5b2155f12
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      temp.exe
    • Size 712KB
    • SHA256 0e56a3b073bb2a8fae5d4732d40c6e93b5507fb6ba321322f34f99f5b2155f12
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • 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.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

    • Enumerates connected drives

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks