Analysis

  • max time kernel
    151s
  • max time network
    168s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:36

General

  • Target

    LEE KEE METAL CO. LTD Quotation.exe

  • Size

    800KB

  • MD5

    e0b609a21c0ce30fd3af290eea01b223

  • SHA1

    89ebb9ff3ab6c9a3330e798036bb81cec29c417f

  • SHA256

    4e58097d79300ae809d5217574143329645024690feef18106d9f009653fbb95

  • SHA512

    c51ed371b07bb7949b861f7e5e7a26e08d8f09a884d3fc468a1e7072cb9dd23f26b7c73d0e322101f5a0aad14a83c673e446f360b710443205897add976f4810

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 127.0.0.1 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 2:55:28 AM MassLogger Started: 5/21/2022 2:55:02 AM Interval: 96 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\LEE KEE METAL CO. LTD Quotation.exe MassLogger Melt: false MassLogger Exit after delivery: false 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 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
  • 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LEE KEE METAL CO. LTD Quotation.exe
    "C:\Users\Admin\AppData\Local\Temp\LEE KEE METAL CO. LTD Quotation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZNlSpLGO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6DA2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1256
    • C:\Users\Admin\AppData\Local\Temp\LEE KEE METAL CO. LTD Quotation.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:1156

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6DA2.tmp

    Filesize

    1KB

    MD5

    8eade830df5d637104dacf51c13226a2

    SHA1

    db756f0b024d54f7fe319059db730c00f380b6f5

    SHA256

    1fa796e7be67691c99bc4d14dba51c75d3c529161e96a6714230b7fbc6f66e24

    SHA512

    8949dbc45a8d0aad2afb7a1c20ce38ad0ad861f349b91166abbd8e5b1440aa57a08e43829f753459786303e6e95c1106a021ecdc47e29b847841355ef0b8024a

  • memory/1156-67-0x00000000004947AE-mapping.dmp

  • memory/1156-69-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1156-64-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1156-75-0x0000000001F90000-0x0000000001FA4000-memory.dmp

    Filesize

    80KB

  • memory/1156-65-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1156-74-0x0000000004B05000-0x0000000004B16000-memory.dmp

    Filesize

    68KB

  • memory/1156-61-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1156-66-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1156-72-0x00000000007C0000-0x0000000000804000-memory.dmp

    Filesize

    272KB

  • memory/1156-71-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1156-62-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1256-59-0x0000000000000000-mapping.dmp

  • memory/1364-54-0x0000000000870000-0x000000000093E000-memory.dmp

    Filesize

    824KB

  • memory/1364-56-0x0000000000390000-0x000000000039A000-memory.dmp

    Filesize

    40KB

  • memory/1364-57-0x0000000005850000-0x00000000058FC000-memory.dmp

    Filesize

    688KB

  • memory/1364-55-0x0000000076461000-0x0000000076463000-memory.dmp

    Filesize

    8KB

  • memory/1364-58-0x0000000005340000-0x00000000053FC000-memory.dmp

    Filesize

    752KB