General

  • Target
    WinLock.exe
  • Size 5.1MB
  • Sample260826-vnb19aed77
  • SHA256 677dd9b1eedf53107fdf25be352a13f3ef3c7a7ccc7089f5febbf4251257b0ed
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      WinLock.exe
    • Size 5.1MB
    • SHA256 677dd9b1eedf53107fdf25be352a13f3ef3c7a7ccc7089f5febbf4251257b0ed
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies WinLogon for persistence

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Modifies file permissions

    • 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

    • 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.

    • 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.

    • Hide Artifacts: Hidden Files and Directories

MITRE ATT&CK Enterprise v16

Tasks