Overview

overview

10

Static

static

GES39704.exe

windows7_x64

10

GES39704.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    138s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:51

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General

  • Target

    GES39704.exe

  • Size

    870KB

  • MD5

    20de432edecefc7e81f054c8c2fffaa1

  • SHA1

    536e7082c205a38c354542ff250eb3c9f710fc2a

  • SHA256

    50200ba284438dc29acae05938fb71be0163ab59fed9b73c177f4e9928317605

  • SHA512

    24daf29a6d74c8c4dfe642c8e4d921f8857171a48db69a1b5ca638aa23f78c0711cf91649b70f15c7fbe13e205826efca3cb22334cbf495acbd1f441ee3b5e87

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

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

Family

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: 5/21/2022 4:48:48 AM MassLogger Started: 5/21/2022 4:48:44 AM Interval: 1 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\GES39704.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Window Searcher ||> Disabled <|| Downloader ||> 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

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.ionos.de
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    arypnb89

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 2 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
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • 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 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GES39704.exe
    "C:\Users\Admin\AppData\Local\Temp\GES39704.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3232
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hRXQymoFjGekl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA930.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1996
    • C:\Users\Admin\AppData\Local\Temp\GES39704.exe
      "{path}"
      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:1492

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA930.tmp
    Filesize

    1KB

    MD5

    3b7ae9f2cec67577ee776823afe13714

    SHA1

    840dde1fe793f185fccef97826aeb52f252c4d55

    SHA256

    f121c3980bbdfbe87272eb599bdc7fa18f6fab847b1a6a6eb7cc9892d4f2320f

    SHA512

    515b765be70c81f766165e6cc655c40d818d7648fe4439158f9886337b4e97a78b6da2e3288f58bf9a803fe114adb39a9576ecb6e80c08e9ec0cc398fbe0f8de

    Download Submit

  • memory/1492-137-0x0000000000000000-mapping.dmp

    Download

  • memory/1492-138-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

    Download

  • memory/1492-139-0x0000000005750000-0x00000000057B6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/1492-140-0x0000000008050000-0x00000000080A0000-memory.dmp

    Filesize

    320KB

    Download

  • memory/1996-135-0x0000000000000000-mapping.dmp

    Download

  • memory/3232-130-0x00000000004C0000-0x00000000005A0000-memory.dmp

    Filesize

    896KB

    Download

  • memory/3232-131-0x0000000005630000-0x0000000005BD4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/3232-132-0x0000000004F70000-0x0000000005002000-memory.dmp

    Filesize

    584KB

    Download

  • memory/3232-133-0x0000000004F40000-0x0000000004F4A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/3232-134-0x00000000074F0000-0x000000000758C000-memory.dmp

    Filesize

    624KB

    Download