Analysis

  • max time kernel
    106s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-05-2022 02:43

General

  • Target

    6ca21c729d3241cc88bbc4dcc7e2432a89c63878af6fd4f8fdb980a1db566a6a.exe

  • Size

    769KB

  • MD5

    940068f0f20ee4785d5ab78abddaaf2f

  • SHA1

    243916ab8da3d39a6c9b69ac2f669ba2cc0bb59e

  • SHA256

    6ca21c729d3241cc88bbc4dcc7e2432a89c63878af6fd4f8fdb980a1db566a6a

  • SHA512

    ed99595b4279d68c4f3f298c5af403382379fff4158378eb75a62cce763610e0bc7989ecabf6c4f83987c76d9ef2224689a478aa77c638cf41fd877925578268

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\0F48153F20\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.51 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: 5/11/2022 4:02:49 AM MassLogger Started: 5/11/2022 4:02:45 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\6ca21c729d3241cc88bbc4dcc7e2432a89c63878af6fd4f8fdb980a1db566a6a.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.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
  • 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 behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ca21c729d3241cc88bbc4dcc7e2432a89c63878af6fd4f8fdb980a1db566a6a.exe
    "C:\Users\Admin\AppData\Local\Temp\6ca21c729d3241cc88bbc4dcc7e2432a89c63878af6fd4f8fdb980a1db566a6a.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2592
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Local\Temp\6ca21c729d3241cc88bbc4dcc7e2432a89c63878af6fd4f8fdb980a1db566a6a.exe"'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4592

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2592-137-0x0000000004DC0000-0x0000000004E26000-memory.dmp

    Filesize

    408KB

  • memory/2592-131-0x000000000A640000-0x000000000ABE4000-memory.dmp

    Filesize

    5.6MB

  • memory/2592-132-0x000000000A190000-0x000000000A222000-memory.dmp

    Filesize

    584KB

  • memory/2592-133-0x0000000004BD0000-0x0000000004BDA000-memory.dmp

    Filesize

    40KB

  • memory/2592-152-0x0000000006800000-0x0000000006850000-memory.dmp

    Filesize

    320KB

  • memory/2592-135-0x0000000004CB0000-0x0000000004D4C000-memory.dmp

    Filesize

    624KB

  • memory/2592-130-0x00000000000B0000-0x0000000000174000-memory.dmp

    Filesize

    784KB

  • memory/4592-140-0x0000000005C40000-0x0000000005CA6000-memory.dmp

    Filesize

    408KB

  • memory/4592-144-0x0000000006960000-0x000000000697E000-memory.dmp

    Filesize

    120KB

  • memory/4592-139-0x00000000053D0000-0x00000000053F2000-memory.dmp

    Filesize

    136KB

  • memory/4592-136-0x0000000004DD0000-0x0000000004E06000-memory.dmp

    Filesize

    216KB

  • memory/4592-141-0x00000000063B0000-0x00000000063CE000-memory.dmp

    Filesize

    120KB

  • memory/4592-142-0x0000000006980000-0x00000000069B2000-memory.dmp

    Filesize

    200KB

  • memory/4592-143-0x000000006FE10000-0x000000006FE5C000-memory.dmp

    Filesize

    304KB

  • memory/4592-138-0x0000000005460000-0x0000000005A88000-memory.dmp

    Filesize

    6.2MB

  • memory/4592-145-0x0000000007D00000-0x000000000837A000-memory.dmp

    Filesize

    6.5MB

  • memory/4592-146-0x00000000076B0000-0x00000000076CA000-memory.dmp

    Filesize

    104KB

  • memory/4592-147-0x0000000007720000-0x000000000772A000-memory.dmp

    Filesize

    40KB

  • memory/4592-148-0x0000000007930000-0x00000000079C6000-memory.dmp

    Filesize

    600KB

  • memory/4592-149-0x00000000078E0000-0x00000000078EE000-memory.dmp

    Filesize

    56KB

  • memory/4592-150-0x00000000079F0000-0x0000000007A0A000-memory.dmp

    Filesize

    104KB

  • memory/4592-151-0x00000000079D0000-0x00000000079D8000-memory.dmp

    Filesize

    32KB

  • memory/4592-134-0x0000000000000000-mapping.dmp