Analysis

  • user interaction
    yes
  • max time kernel
    69s
  • max time network
    76s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    03/05/2026, 19:25

General

  • Target
    Blockyfish.exe
  • Size 212.7MB
  • Sample260503-x451daf141
  • SHA256 00976380e5756fea929c0900ab0582a55269dfcac189786d5d53691909d5b623
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads ssh keys stored on the system 2 TTPs

    Tries to access SSH used by SSH programs.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe
    "C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe"
    1⤵
    • Checks computer location settings
    • Checks processor information in registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe
      "C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\Blockyfish" --gpu-preferences=SAAAAAAAAADgAAAEAAAAAAAAAAAAAGAAAQAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1808,i,9275111492476615331,17476356268165591894,262144 --enable-features=EnableTransparentHwndEnlargement,PdfUseShowSaveFilePicker --disable-features=CalculateNativeWinOcclusion,DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1812,i,10659446861140978581,1061735425752529937,4 --trace-process-track-uuid=3190708988185955192 --mojo-platform-channel-handle=1804 /prefetch:2
      2⤵
        PID:4464
      • C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe
        "C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\Blockyfish" --field-trial-handle=1808,i,9275111492476615331,17476356268165591894,262144 --enable-features=EnableTransparentHwndEnlargement,PdfUseShowSaveFilePicker --disable-features=CalculateNativeWinOcclusion,DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1812,i,10659446861140978581,1061735425752529937,4 --trace-process-track-uuid=3190708989122997041 --mojo-platform-channel-handle=1984 /prefetch:3
        2⤵
          PID:4576
        • C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe
          "C:\Users\Admin\AppData\Local\Temp\Blockyfish.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\Blockyfish" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --enable-sandbox --disable-background-timer-throttling --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=4 --time-ticks-at-unix-epoch=-1777836161862755 --launch-time-ticks=498792178 --field-trial-handle=1808,i,9275111492476615331,17476356268165591894,262144 --enable-features=EnableTransparentHwndEnlargement,PdfUseShowSaveFilePicker --disable-features=CalculateNativeWinOcclusion,DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1812,i,10659446861140978581,1061735425752529937,4 --trace-process-track-uuid=3190708990060038890 --mojo-platform-channel-handle=3168 /prefetch:1
          2⤵
          • Checks computer location settings
          PID:4908

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            the-real-index

            • Path C:\Users\Admin\AppData\Roaming\Blockyfish\Code Cache\js\index-dir\the-real-index
            • Size 144B
            • SHA256 4ef71048f68dd9a2fbcb491739d3f68204af57a1aacbf9a522dbb2f8ade81126
            • MD5 SHA1 SHA512 TLSH

            the-real-index

            • Path C:\Users\Admin\AppData\Roaming\Blockyfish\Code Cache\js\index-dir\the-real-index
            • Size 48B
            • SHA256 901470318034bb40bf3601f397839031f70d61364128ffb2e435c6cc525148b8
            • MD5 SHA1 SHA512

            data_0

            • Path C:\Users\Admin\AppData\Roaming\Blockyfish\GPUCache\data_0
            • Size 8KB
            • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
            • MD5 SHA1 SHA512 SSDEEP

            data_1

            • Path C:\Users\Admin\AppData\Roaming\Blockyfish\GPUCache\data_1
            • Size 264KB
            • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
            • MD5 SHA1 SHA512 SSDEEP

            data_2

            • Path C:\Users\Admin\AppData\Roaming\Blockyfish\GPUCache\data_2
            • Size 8KB
            • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
            • MD5 SHA1 SHA512 SSDEEP

            data_3

            • Path C:\Users\Admin\AppData\Roaming\Blockyfish\GPUCache\data_3
            • Size 8KB
            • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
            • MD5 SHA1 SHA512 SSDEEP

            CURRENT

            • Path C:\Users\Admin\AppData\Roaming\Blockyfish\Session Storage\CURRENT
            • Size 16B
            • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
            • MD5 SHA1 SHA512

            default.dic

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.dic
            • Size 2B
            • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
            • MD5 SHA1 SHA512

            memory/4908-53-0x00007FF9AC040000-0x00007FF9AC041000-memory.dmp

            memory/4908-52-0x00007FF9AD590000-0x00007FF9AD591000-memory.dmp

            memory/4908-171-0x0000029866100000-0x000002986619B000-memory.dmp