Analysis

  • max time kernel
    136s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    29-03-2022 20:25

General

  • Target

    ce9e4b5da6b56e21fa6953325d6c53b183b8989e0b143d45ca5f505ea6b3985e.exe

  • Size

    1.2MB

  • MD5

    7c6e07fef4d51f390d13bb48c623e032

  • SHA1

    07812203d761ffea42c997b81b33773502c90cec

  • SHA256

    ce9e4b5da6b56e21fa6953325d6c53b183b8989e0b143d45ca5f505ea6b3985e

  • SHA512

    0b92f0e19ca55b645140f0b3ab32958b7a77b25b6269b86ab7542ca685b4c457d0e3781c1758dfb72ae0df892d3c349a55e3d714e3692354fe0de6a3561b9e41

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
  • 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 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce9e4b5da6b56e21fa6953325d6c53b183b8989e0b143d45ca5f505ea6b3985e.exe
    "C:\Users\Admin\AppData\Local\Temp\ce9e4b5da6b56e21fa6953325d6c53b183b8989e0b143d45ca5f505ea6b3985e.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:560
    • C:\Users\Admin\AppData\Local\Temp\ce9e4b5da6b56e21fa6953325d6c53b183b8989e0b143d45ca5f505ea6b3985e.exe
      "C:\Users\Admin\AppData\Local\Temp\ce9e4b5da6b56e21fa6953325d6c53b183b8989e0b143d45ca5f505ea6b3985e.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:1604

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/560-130-0x0000000000B10000-0x0000000000C4A000-memory.dmp

    Filesize

    1.2MB

  • memory/560-131-0x0000000005CA0000-0x0000000006244000-memory.dmp

    Filesize

    5.6MB

  • memory/560-132-0x00000000055E0000-0x0000000005672000-memory.dmp

    Filesize

    584KB

  • memory/560-133-0x0000000005690000-0x000000000569A000-memory.dmp

    Filesize

    40KB

  • memory/1604-135-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1604-136-0x0000000006490000-0x00000000064F6000-memory.dmp

    Filesize

    408KB

  • memory/1604-137-0x0000000006CD0000-0x0000000006D20000-memory.dmp

    Filesize

    320KB

  • memory/1604-138-0x0000000006F00000-0x0000000006F9C000-memory.dmp

    Filesize

    624KB

  • memory/1604-139-0x0000000005353000-0x0000000005355000-memory.dmp

    Filesize

    8KB