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Analysis

  • max time kernel
    15s
  • max time network
    17s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 08:07

General

  • Target

    Loader.exe

  • Size

    1.7MB

  • MD5

    37dc3bc48de9937c96b41c9ae8478b55

  • SHA1

    9ee6ce5d510afb62df12081c86aba3d3357b51de

  • SHA256

    b5ad3a524b78e657bb6aad58e09658870f8e8ceefb479a363a7304f3dfd5bbb1

  • SHA512

    f60905d2d442f9cec6766a7934723057c534051b1ba807feef4f592cb69b5c1a805f4e8625d03200fd923a99a75f7a3c8195f6ff2a414d6efbf75df39b6c3aa5

  • SSDEEP

    49152:ybo95a6iGYTFJqLLXi6hkwsPCF+2t0GY3HNv2x:SAHLsPW+qg3HNv2x

Malware Config

Extracted

Family

meduza

C2

109.107.181.162

Signatures

  • Meduza

    Meduza is a crypto wallet and info stealer written in C++.

  • Meduza Stealer payload 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
  • 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 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • NTFS ADS 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • NTFS ADS
    • Suspicious use of WriteProcessMemory
    PID:3960
    • C:\Users\Admin\AppData\Local\Temp\Loader.exe
      "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1404
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2528
        • C:\Windows\system32\PING.EXE
          ping 1.1.1.1 -n 1 -w 3000
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Loader.exe

    Filesize

    1.7MB

    MD5

    37dc3bc48de9937c96b41c9ae8478b55

    SHA1

    9ee6ce5d510afb62df12081c86aba3d3357b51de

    SHA256

    b5ad3a524b78e657bb6aad58e09658870f8e8ceefb479a363a7304f3dfd5bbb1

    SHA512

    f60905d2d442f9cec6766a7934723057c534051b1ba807feef4f592cb69b5c1a805f4e8625d03200fd923a99a75f7a3c8195f6ff2a414d6efbf75df39b6c3aa5

  • C:\Users\Admin\AppData\Local\Temp\Loader.exe:a.dll

    Filesize

    1.4MB

    MD5

    41adf8dcaf9d1fa61dddefb1bdb39c36

    SHA1

    daf0bedc0ca370993034e30c457deccfef556307

    SHA256

    8567b9513b67add151dfebb1b187d65248d2bd9bb9541c189808fc41198d47d2

    SHA512

    ad7ac052b0fd6db9cea21aa7dad680bd092f58cde6bd98dad35d5a2e77a271a357395b1eadeeaa0afaeaebe0b946d52fd6ee1bdbef824311609e957ffd98d8a2

  • memory/1404-6-0x0000000140000000-0x000000014013B000-memory.dmp

    Filesize

    1.2MB

  • memory/1404-10-0x0000000140000000-0x000000014013B000-memory.dmp

    Filesize

    1.2MB

  • memory/1404-7-0x0000000140000000-0x000000014013B000-memory.dmp

    Filesize

    1.2MB

  • memory/1404-4-0x0000000140000000-0x000000014013B000-memory.dmp

    Filesize

    1.2MB

  • memory/1404-19-0x0000000140000000-0x000000014013B000-memory.dmp

    Filesize

    1.2MB

  • memory/3960-9-0x00007FF9F5680000-0x00007FF9F57E4000-memory.dmp

    Filesize

    1.4MB

  • memory/3960-8-0x00007FF69BFC0000-0x00007FF69C175000-memory.dmp

    Filesize

    1.7MB