Overview

overview

10

Static

static

d7df3a9db6...b9.exe

windows7_x64

10

d7df3a9db6...b9.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    72s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15/04/2022, 00:46

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General

  • Target
    d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe
  • Size 1.5MB
  • Sample220415-a435fsehfp
  • SHA256 d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9
  • MD5 SHA1 SHA512
Score
10/10
massloggercollectionpersistenceransomwarespywarestealer

Malware Config

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

Signatures

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
    collection
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe
    "C:\Users\Admin\AppData\Local\Temp\d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Users\Admin\AppData\Local\Temp\d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe
      "C:\Users\Admin\AppData\Local\Temp\d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2636

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\d7df3a9db627567f9b370001a655b2a8f05a12e6ef179ee386e7bb4c8244bab9.exe.log
        • Size 1KB
        • SHA256 ad995b51344d71019f96fc3a424de00256065daad8595ff599f6849c87ae75ce
        • MD5 SHA1 SHA512
        Submit Download

        memory/2636-139-0x0000000005950000-0x00000000059EC000-memory.dmp
        Download

        memory/2636-137-0x0000000000400000-0x00000000004B8000-memory.dmp
        Download

        memory/2636-140-0x0000000005AE0000-0x0000000005B46000-memory.dmp
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        memory/2636-141-0x0000000005863000-0x0000000005865000-memory.dmp
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        memory/2636-142-0x00000000081C0000-0x0000000008210000-memory.dmp
        Download

        memory/4956-132-0x0000000004E80000-0x0000000004F12000-memory.dmp
        Download

        memory/4956-133-0x0000000005020000-0x000000000502A000-memory.dmp
        Download

        memory/4956-134-0x00000000085A0000-0x0000000008616000-memory.dmp
        Download

        memory/4956-135-0x0000000008920000-0x000000000893E000-memory.dmp
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        memory/4956-131-0x0000000005390000-0x0000000005934000-memory.dmp
        Download

        memory/4956-130-0x0000000000490000-0x000000000060E000-memory.dmp
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