Analysis

  • max time kernel
    189s
  • max time network
    204s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-05-2022 06:34

General

  • Target

    9252faef952e2f3d507925366fe9b820fdc98957fe9e7caa9600b09497e58ec7.exe

  • Size

    751KB

  • MD5

    2220163ba858d08a3e2f179412f609b7

  • SHA1

    7858d3086455780becfd08b4a8fe9db58d9a9786

  • SHA256

    9252faef952e2f3d507925366fe9b820fdc98957fe9e7caa9600b09497e58ec7

  • SHA512

    9121a8bcb5be503a1ab58727bb63ec76784066da9b2cae131c72187813d7d50e6de594798b53ec65580b81a59d0ab6496370424c5654b651c342c9bbae708c15

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 1 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 42 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 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9252faef952e2f3d507925366fe9b820fdc98957fe9e7caa9600b09497e58ec7.exe
    "C:\Users\Admin\AppData\Local\Temp\9252faef952e2f3d507925366fe9b820fdc98957fe9e7caa9600b09497e58ec7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2584
    • C:\Users\Admin\AppData\Local\Temp\9252faef952e2f3d507925366fe9b820fdc98957fe9e7caa9600b09497e58ec7.exe
      "C:\Users\Admin\AppData\Local\Temp\9252faef952e2f3d507925366fe9b820fdc98957fe9e7caa9600b09497e58ec7.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:3192
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\9252faef952e2f3d507925366fe9b820fdc98957fe9e7caa9600b09497e58ec7.exe'
        3⤵
          PID:4044

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2584-130-0x0000000000010000-0x00000000000D2000-memory.dmp

      Filesize

      776KB

    • memory/2584-131-0x0000000005010000-0x00000000055B4000-memory.dmp

      Filesize

      5.6MB

    • memory/2584-132-0x0000000004B00000-0x0000000004B92000-memory.dmp

      Filesize

      584KB

    • memory/2584-133-0x0000000004BA0000-0x0000000004C3C000-memory.dmp

      Filesize

      624KB

    • memory/2584-134-0x0000000004A90000-0x0000000004A9A000-memory.dmp

      Filesize

      40KB

    • memory/3192-135-0x0000000000000000-mapping.dmp

    • memory/3192-136-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3192-137-0x0000000005570000-0x00000000055D6000-memory.dmp

      Filesize

      408KB

    • memory/3192-140-0x0000000006C60000-0x0000000006CB0000-memory.dmp

      Filesize

      320KB

    • memory/4044-138-0x0000000000000000-mapping.dmp

    • memory/4044-139-0x0000000004FE0000-0x0000000005016000-memory.dmp

      Filesize

      216KB