General

  • Target
    Erenrcompany.exe
  • Size 2.3MB
  • Sample201109-2pyqgwj2fj
  • SHA256 50ff0aae0a9f7c1fc39e15483e5ebf8235d18c9d9ef2a5bd75a538c0a42e444e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\Users\Admin\AppData\Local\Temp\5FADD7138A\Log.txt

  • masslogger

Ransom Note
  • ################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 7 Professional 64bit CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 11/10/2020 3:33:51 AM MassLogger Started: 11/10/2020 3:33:45 AM Interval: 2 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe As Administrator: True

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    Dmacdavid

Extracted

Path
  • C:\Users\Admin\AppData\Local\Temp\AEA604E53D\Log.txt

  • masslogger

Ransom Note
  • ################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Persocon Processor 2.5+ GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 11/10/2020 4:41:06 AM MassLogger Started: 11/10/2020 4:41:02 AM Interval: 2 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe As Administrator: True

Targets

    • Target
      Erenrcompany.exe
    • Size 2.3MB
    • SHA256 50ff0aae0a9f7c1fc39e15483e5ebf8235d18c9d9ef2a5bd75a538c0a42e444e
    • 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.

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Reads user/profile data of web browsers

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

    • 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