Overview

overview

10

Static

static

38499bcc55...3b.exe

windows7_x64

10

38499bcc55...3b.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    91s
  • max time network
    85s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15-04-2022 15:55

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General

  • Target

    38499bcc55a8ad317308200dc05f394a0d71f8c25137613a66f790f9284bbb3b.exe

  • Size

    1.9MB

  • MD5

    ad60b9cc5596349584189a44f5c4f648

  • SHA1

    9b54d74a5bb2749860723c8ac27cee5eb563bbdd

  • SHA256

    38499bcc55a8ad317308200dc05f394a0d71f8c25137613a66f790f9284bbb3b

  • SHA512

    eb2f5d29368e4273d33b710e901e4fb0ceea97211bad6fd9a20916f29bfeb4804b5994f9572b2ba55f2318394755707f68b807209dfaade23bddb54807b9a003

Score
10/10
massloggercollectionpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> 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: 4/15/2022 8:26:53 PM MassLogger Started: 4/15/2022 8:26:40 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\38499bcc55a8ad317308200dc05f394a0d71f8c25137613a66f790f9284bbb3b.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Downloader ||> Disabled <|| Binder ||> 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\38499bcc55a8ad317308200dc05f394a0d71f8c25137613a66f790f9284bbb3b.exe
    "C:\Users\Admin\AppData\Local\Temp\38499bcc55a8ad317308200dc05f394a0d71f8c25137613a66f790f9284bbb3b.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Users\Admin\AppData\Local\Temp\38499bcc55a8ad317308200dc05f394a0d71f8c25137613a66f790f9284bbb3b.exe
      "C:\Users\Admin\AppData\Local\Temp\38499bcc55a8ad317308200dc05f394a0d71f8c25137613a66f790f9284bbb3b.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:3232

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1836-130-0x0000000000360000-0x000000000054A000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/1836-131-0x0000000005440000-0x00000000059E4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/1836-132-0x0000000004F30000-0x0000000004FC2000-memory.dmp

    Filesize

    584KB

    Download

  • memory/1836-133-0x0000000004F00000-0x0000000004F0A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/1836-134-0x0000000004E90000-0x0000000005434000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/3232-135-0x0000000000000000-mapping.dmp

    Download

  • memory/3232-136-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

    Download

  • memory/3232-137-0x0000000005490000-0x000000000552C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3232-138-0x0000000005620000-0x0000000005686000-memory.dmp

    Filesize

    408KB

    Download

  • memory/3232-139-0x0000000002D93000-0x0000000002D95000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3232-140-0x0000000007450000-0x00000000074A0000-memory.dmp

    Filesize

    320KB

    Download