Analysis

  • max time kernel
    77s
  • max time network
    98s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/06/2024, 17:19

General

  • Target
    install_all/dotnet-sdk-6.0.422-win-x86.exe
  • Size 180.4MB
  • Sample240608-vvze5aee82
  • SHA256 16f9285f7e75b034c50be458f6125f7c7d31ff53cedcaf992ff17daf6176b3ca
  • MD5 SHA1 SHA512 SSDEEP
Score
4/10

Malware Config

Signatures

  • Checks installed software on the system 1 TTPs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\install_all\dotnet-sdk-6.0.422-win-x86.exe
    "C:\Users\Admin\AppData\Local\Temp\install_all\dotnet-sdk-6.0.422-win-x86.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:236
    • C:\Windows\Temp\{17B95D9F-C41B-4527-A568-839989F5C867}\.cr\dotnet-sdk-6.0.422-win-x86.exe
      "C:\Windows\Temp\{17B95D9F-C41B-4527-A568-839989F5C867}\.cr\dotnet-sdk-6.0.422-win-x86.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\install_all\dotnet-sdk-6.0.422-win-x86.exe" -burn.filehandle.attached=724 -burn.filehandle.self=728
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2232

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        dotnet-sdk-6.0.422-win-x86.exe

        • Path C:\Windows\Temp\{17B95D9F-C41B-4527-A568-839989F5C867}\.cr\dotnet-sdk-6.0.422-win-x86.exe
        • Size 610KB
        • SHA256 077f1a0faa09f09ea55cfea013ef29d5e59e0b90a8d591102f9cd96e5cbe4ebe
        • MD5 SHA1 SHA512 SSDEEP

        bg.png

        • Path C:\Windows\Temp\{C41F3E64-FA88-4847-A076-A807D4AD8ED7}\.ba\bg.png
        • Size 4KB
        • SHA256 9095bf7b6baa0107b40a4a6d727215be077133a190f4ca9bd89a176842141e79
        • MD5 SHA1 SHA512 SSDEEP

        wixstdba.dll

        • Path C:\Windows\Temp\{C41F3E64-FA88-4847-A076-A807D4AD8ED7}\.ba\wixstdba.dll
        • Size 197KB
        • SHA256 41a8787fdc9467f563438daba4131191aa1eb588a81beb9a89fe8bd886c16104
        • MD5 SHA1 SHA512 SSDEEP