Overview

overview

10

Static

static

fd9b86e1c1...5f.exe

windows7_x64

10

fd9b86e1c1...5f.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    157s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220331-en
  • submitted
    14/04/2022, 13:33

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General

  • Target
    fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.exe
  • Size 1.3MB
  • Sample220414-qtqdlsagdn
  • SHA256 fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f
  • MD5 SHA1 SHA512
Score
10/10
massloggercollectionpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Local\A481D1992D\Log.txt

  • masslogger

Ransom Note
  • <|| v2.1.0.0 ||> User Name: Admin IP: 127.0.0.1 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: 4/14/2022 4:49:44 PM MassLogger Started: 4/14/2022 4:49:10 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> 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 Main Payload 1 IoCs
  • 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 2 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\fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.exe
    "C:\Users\Admin\AppData\Local\Temp\fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:884
    • C:\Users\Admin\AppData\Local\Temp\fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.exe
      "C:\Users\Admin\AppData\Local\Temp\fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.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:2072

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fd9b86e1c1cbb3597f1f97a3b8d6ca3fa6054fea738bfe94e2d7593b907f8a5f.exe.log
        • Size 700B
        • SHA256 ead1561bd41de011c70511689cd6dcd3642f79e180224d762db00c59e4347568
        • MD5 SHA1 SHA512
        Submit Download

        memory/884-127-0x0000000005050000-0x000000000506E000-memory.dmp
        Download

        memory/884-126-0x0000000004CD0000-0x0000000004D46000-memory.dmp
        Download

        memory/884-124-0x0000000000200000-0x0000000000350000-memory.dmp
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        memory/884-125-0x0000000005200000-0x00000000057A4000-memory.dmp
        Download

        memory/2072-129-0x0000000000400000-0x000000000049A000-memory.dmp
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        memory/2072-131-0x0000000004FF0000-0x000000000508C000-memory.dmp
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        memory/2072-132-0x0000000005100000-0x0000000005166000-memory.dmp
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        memory/2072-133-0x0000000005B50000-0x0000000005BE2000-memory.dmp
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        memory/2072-134-0x0000000004FE3000-0x0000000004FE5000-memory.dmp
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        memory/2072-135-0x0000000006DF0000-0x0000000006DFA000-memory.dmp
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        memory/2072-136-0x00000000082A0000-0x00000000082F0000-memory.dmp
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