Analysis

  • max time kernel
    59s
  • max time network
    179s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 17:47

General

  • Target

    2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe

  • Size

    627KB

  • MD5

    2ddf6a0a66d234599cec8cf00621fce8

  • SHA1

    16575fc344204981f2daf330e3d2277154e4136c

  • SHA256

    2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd

  • SHA512

    3ecc03abd2c9747490d4b206d6425afa1b5ee71a0d0b77eea9fcb408fca6d35183e681de9fc7fc6a0ad9211fbcedde69f908024acccbdde2f96a6587808e69f5

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v2.0.0.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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: 5/20/2022 7:48:20 PM MassLogger Started: 5/20/2022 7:48:07 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

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 15 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
    "C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.exe
      "C:\Users\Admin\AppData\Local\Temp\2b44ddd2f6551762a56522b9fd602ff822906cb1371f379a3aeb2beda47ee4dd.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:1624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1064-54-0x0000000000260000-0x0000000000304000-memory.dmp

    Filesize

    656KB

  • memory/1064-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

    Filesize

    8KB

  • memory/1064-56-0x00000000005A0000-0x00000000005A8000-memory.dmp

    Filesize

    32KB

  • memory/1064-57-0x0000000005270000-0x0000000005306000-memory.dmp

    Filesize

    600KB

  • memory/1624-58-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/1624-59-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/1624-61-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/1624-63-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/1624-62-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/1624-64-0x000000000048954E-mapping.dmp

  • memory/1624-66-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/1624-68-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/1624-69-0x0000000000660000-0x00000000006A4000-memory.dmp

    Filesize

    272KB

  • memory/1624-71-0x00000000007F0000-0x0000000000804000-memory.dmp

    Filesize

    80KB

  • memory/1624-72-0x0000000000815000-0x0000000000826000-memory.dmp

    Filesize

    68KB