Analysis

  • max time kernel
    4294181s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • 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 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\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:1504
    • 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:1356

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1356-57-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1356-58-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1356-60-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1356-61-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1356-62-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1356-65-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1356-67-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1356-68-0x0000000004C35000-0x0000000004C46000-memory.dmp

    Filesize

    68KB

  • memory/1504-54-0x0000000000CD0000-0x0000000000E0A000-memory.dmp

    Filesize

    1.2MB

  • memory/1504-55-0x0000000004E80000-0x0000000004F1A000-memory.dmp

    Filesize

    616KB

  • memory/1504-56-0x0000000000630000-0x000000000064C000-memory.dmp

    Filesize

    112KB