General

  • Target
    d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9
  • Size 1.5MB
  • Sample220415-a435fsehfp
  • SHA256 d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\Users\Admin\AppData\Local\3B8E3C2477\Log.txt

  • masslogger

Ransom Note
  • <|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 4/15/2022 2:59:56 AM MassLogger Started: 4/15/2022 2:59:44 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Window Searcher ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Extracted

Path
  • C:\Users\Admin\AppData\Local\F95B724EDE\Log.txt

  • masslogger

Ransom Note
  • <|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 4/15/2022 2:59:14 AM MassLogger Started: 4/15/2022 2:59:11 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Targets

    • Target
      d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9
    • Size 1.5MB
    • SHA256 d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9
    • 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.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • 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