Analysis

  • max time kernel
    142s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/01/2024, 01:14

General

  • Target
    8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930.exe
  • Size 592KB
  • Sample240118-blqbbaafa2
  • SHA256 8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Echelon Stealer payload 1 IoCs
  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Stops running service(s) 3 TTPs
  • 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 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930.exe
    "C:\Users\Admin\AppData\Local\Temp\8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930.exe"
    1⤵
    • 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:4932
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c sc stop "MpsSvc"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3396
      • C:\Windows\system32\sc.exe
        sc stop "MpsSvc"
        3⤵
        • Launches sc.exe
        PID:8

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        memory/4932-0-0x00000240D69E0000-0x00000240D6A7A000-memory.dmp

        memory/4932-1-0x00007FFB9CCA0000-0x00007FFB9D761000-memory.dmp

        memory/4932-2-0x00000240D8630000-0x00000240D8640000-memory.dmp

        memory/4932-3-0x00000240F13C0000-0x00000240F1436000-memory.dmp

        memory/4932-33-0x00007FFB9CCA0000-0x00007FFB9D761000-memory.dmp