Analysis

  • max time kernel
    4294183s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20220310-en
  • submitted
    26-03-2022 08:08

General

  • Target

    b2774668441645e7a075ed2a84d44c1b51df204f507e7e207a67c4e280ce26af.exe

  • Size

    572KB

  • MD5

    f39c5d35c7ccd6ddcaeff985ebd5c5f0

  • SHA1

    5fa180d2c3acd666412c39a08fc0f68f9db31e49

  • SHA256

    b2774668441645e7a075ed2a84d44c1b51df204f507e7e207a67c4e280ce26af

  • SHA512

    9e40c3dd290395fed3344b18c6174b2d41ff3379acbe8a2538bc1a2d36885ef815358edbc52a14114c4265a9bd874b8dd1b9593aee09f099cd2b08d226c8829d

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 6 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 1 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\b2774668441645e7a075ed2a84d44c1b51df204f507e7e207a67c4e280ce26af.exe
    "C:\Users\Admin\AppData\Local\Temp\b2774668441645e7a075ed2a84d44c1b51df204f507e7e207a67c4e280ce26af.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Users\Admin\AppData\Local\Temp\b2774668441645e7a075ed2a84d44c1b51df204f507e7e207a67c4e280ce26af.exe
      "C:\Users\Admin\AppData\Local\Temp\b2774668441645e7a075ed2a84d44c1b51df204f507e7e207a67c4e280ce26af.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:824

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/824-57-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/824-58-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/824-60-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/824-61-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/824-62-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/824-65-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/824-67-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/824-68-0x0000000000390000-0x00000000003D0000-memory.dmp

    Filesize

    256KB

  • memory/1452-54-0x00000000009F0000-0x0000000000A84000-memory.dmp

    Filesize

    592KB

  • memory/1452-55-0x00000000008E0000-0x0000000000984000-memory.dmp

    Filesize

    656KB

  • memory/1452-56-0x00000000003D0000-0x00000000003EC000-memory.dmp

    Filesize

    112KB