Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 12:17

General

  • Target

    ??????????? ??????????? ??? online franking ???.exe

  • Size

    1.4MB

  • MD5

    5eecf03b05db7688aeaa9e53815f92fd

  • SHA1

    802f170d063616ba6c5b4b7bda7a145873b27378

  • SHA256

    a8a2e34c6f491ba5d0f16899835630257c0124249fd1d0852b27e736b2a98b3d

  • SHA512

    f0bea4f59dc07a44736ad0eaef9b9bc1758dff22f580a30f54b472899fb9c82bf57030ac0838291e24df55505ad03fc1504ef2ead3a02aa1b5d772e917c97677

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\8506BBE7FF\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 3:06:13 PM MassLogger Started: 5/21/2022 3:06:03 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\___________ ___________ ___ online franking ___.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> Disabled <|| Bot Killer ||> Disabled <|| Window Searcher ||> 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 ||> Disabled

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main Payload 7 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 35 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 use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\___________ ___________ ___ online franking ___.exe
    "C:\Users\Admin\AppData\Local\Temp\___________ ___________ ___ online franking ___.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:240
    • C:\Users\Admin\AppData\Local\Temp\___________ ___________ ___ online franking ___.exe
      "C:\Users\Admin\AppData\Local\Temp\___________ ___________ ___ online franking ___.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1344

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/240-54-0x00000000010C0000-0x000000000123A000-memory.dmp

    Filesize

    1.5MB

  • memory/240-55-0x00000000757C1000-0x00000000757C3000-memory.dmp

    Filesize

    8KB

  • memory/240-56-0x0000000000430000-0x0000000000444000-memory.dmp

    Filesize

    80KB

  • memory/240-57-0x0000000000790000-0x000000000079A000-memory.dmp

    Filesize

    40KB

  • memory/1344-58-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1344-59-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1344-61-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1344-62-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1344-63-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1344-64-0x00000000004BC0BE-mapping.dmp

  • memory/1344-66-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1344-68-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1344-69-0x0000000000D20000-0x0000000000D98000-memory.dmp

    Filesize

    480KB

  • memory/1344-71-0x0000000000BD5000-0x0000000000BE6000-memory.dmp

    Filesize

    68KB

  • memory/1344-72-0x0000000000B70000-0x0000000000B84000-memory.dmp

    Filesize

    80KB