Analysis

  • max time kernel
    107s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:24

General

  • Target

    requirements and delivery order.exe

  • Size

    970KB

  • MD5

    6085ac87589c9ac7ce7fece0a743d4d3

  • SHA1

    d493ca5f57b3a9f8893a287c3ee64e387e30b1fa

  • SHA256

    f959039896cdd9c4add867b06af7d100629377c66ef7fb0fd4aeba48f9a9593e

  • SHA512

    09ecb1d0b7a70b0b9604f59bdc6ee9ca83560b7e0a815369992c80023a43bbd1ebe7aa199648744290121b042c22c90b3a4cd83da5682eccef48b5a390008546

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 4:07:11 AM MassLogger Started: 5/21/2022 4:07:00 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\requirements and delivery order.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> 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 6 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 5 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\requirements and delivery order.exe
    "C:\Users\Admin\AppData\Local\Temp\requirements and delivery order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Users\Admin\AppData\Local\Temp\requirements and delivery order.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1088

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1088-64-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1088-65-0x00000000004B324E-mapping.dmp

  • memory/1088-72-0x0000000004F75000-0x0000000004F86000-memory.dmp

    Filesize

    68KB

  • memory/1088-70-0x0000000000B90000-0x0000000000C08000-memory.dmp

    Filesize

    480KB

  • memory/1088-69-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1088-59-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1088-67-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1088-63-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1088-60-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1088-62-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1480-54-0x0000000001380000-0x0000000001478000-memory.dmp

    Filesize

    992KB

  • memory/1480-55-0x0000000075871000-0x0000000075873000-memory.dmp

    Filesize

    8KB

  • memory/1480-58-0x000000000AA80000-0x000000000AB38000-memory.dmp

    Filesize

    736KB

  • memory/1480-57-0x0000000006080000-0x0000000006140000-memory.dmp

    Filesize

    768KB

  • memory/1480-56-0x0000000000320000-0x0000000000330000-memory.dmp

    Filesize

    64KB