General

  • Target
    Q2020-07-466am.exe
  • Size 1.4MB
  • Sample200731-19ce8vyx8a
  • SHA256 de7e69ec920dccdc40220e414a2d1b3bc05e53c5f5ea34e309bd3365aa5dae78
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\Users\Admin\AppData\Local\Temp\E2C1E8F1FA\Log.txt

  • masslogger

Ransom Note
  • ################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 7/31/2020 10:19:20 AM MassLogger Started: 7/31/2020 10:19:14 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.privateemail.com

  • Port

    587

  • Password

    y8wG[wgBvT]F

Targets

    • Target
      Q2020-07-466am.exe
    • Size 1.4MB
    • SHA256 de7e69ec920dccdc40220e414a2d1b3bc05e53c5f5ea34e309bd3365aa5dae78
    • MD5 SHA1 SHA512
    • MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • 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

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks