General

  • Target
    file.exe
  • Size 1.5MB
  • Sample260715-2qs6waft6j
  • SHA256 6673c0852fbf8372d4bc146806b2ea1b1e23bc807b792338204e227098789bae
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      file.exe
    • Size 1.5MB
    • SHA256 6673c0852fbf8372d4bc146806b2ea1b1e23bc807b792338204e227098789bae
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects WallStealer stealer

    • Family: WallStealer

      WallStealer is an information stealer.

    • Modifies WinLogon for persistence

    • Windows security bypass

    • Downloads MZ/PE file

    • 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

    • Reads user/profile data of web browsers

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

    • Registers new Windows logon scripts automatically executed at logon.

    • Windows security modification

    • 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)

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks