Overview

overview

10

Static

static

bcde524b77...ac.exe

windows7_x64

bcde524b77...ac.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    70s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15/04/2022, 08:54

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    bcde524b772c9f744261208f01f33f0229342d619deb4d31b83bde042a9020ac.exe
  • Size 3.6MB
  • Sample220415-ktzz6aedbq
  • SHA256 bcde524b772c9f744261208f01f33f0229342d619deb4d31b83bde042a9020ac
  • MD5 SHA1 SHA512
Score
10/10
massloggercollectionpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Local\EEB932C954\Log.txt

  • masslogger

Ransom Note
  • <|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.13 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 1:18:41 PM MassLogger Started: 4/15/2022 1:18:29 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\bcde524b772c9f744261208f01f33f0229342d619deb4d31b83bde042a9020ac.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\bcde524b772c9f744261208f01f33f0229342d619deb4d31b83bde042a9020ac.exe
    "C:\Users\Admin\AppData\Local\Temp\bcde524b772c9f744261208f01f33f0229342d619deb4d31b83bde042a9020ac.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Users\Admin\AppData\Local\Temp\bcde524b772c9f744261208f01f33f0229342d619deb4d31b83bde042a9020ac.exe
      "C:\Users\Admin\AppData\Local\Temp\bcde524b772c9f744261208f01f33f0229342d619deb4d31b83bde042a9020ac.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:3760

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2508-130-0x0000000000310000-0x00000000006B2000-memory.dmp
        Download

        memory/3760-132-0x0000000000400000-0x00000000004B8000-memory.dmp
        Download

        memory/3760-133-0x0000000005D60000-0x0000000006304000-memory.dmp
        Download

        memory/3760-134-0x0000000005850000-0x00000000058EC000-memory.dmp
        Download

        memory/3760-135-0x0000000005960000-0x00000000059C6000-memory.dmp
        Download

        memory/3760-136-0x0000000005C70000-0x0000000005D02000-memory.dmp
        Download

        memory/3760-137-0x00000000073B0000-0x00000000073BA000-memory.dmp
        Download

        memory/3760-138-0x0000000003453000-0x0000000003455000-memory.dmp
        Download

        memory/3760-139-0x0000000007DD0000-0x0000000007E20000-memory.dmp
        Download