Analysis

  • max time kernel
    300s
  • max time network
    314s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    21/04/2026, 04:36

General

  • Target
    LegacyLauncher.exe
  • Size 204.0MB
  • Sample260421-e8kacshw9m
  • SHA256 e61796efd9be3c7312bf54802d11cb2700099f96876b90c486694ac1e7e0cf3b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Reads ssh keys stored on the system 2 TTPs

    Tries to access SSH used by SSH programs.

  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe
    "C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe
      "C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\legacylauncher" --gpu-preferences=SAAAAAAAAADgAAAEAAAAAAAAAAAAAGAAAQAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1660,i,1398465283674754114,18302936601464760426,262144 --enable-features=EnableTransparentHwndEnlargement,PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708988185955192 --mojo-platform-channel-handle=1656 /prefetch:2
      2⤵
        PID:4892
      • C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe
        "C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\legacylauncher" --field-trial-handle=1660,i,1398465283674754114,18302936601464760426,262144 --enable-features=EnableTransparentHwndEnlargement,PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708989122997041 --mojo-platform-channel-handle=2264 /prefetch:11
        2⤵
          PID:5084
        • C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe
          "C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\legacylauncher" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --no-sandbox --no-zygote --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 --field-trial-handle=1660,i,1398465283674754114,18302936601464760426,262144 --enable-features=EnableTransparentHwndEnlargement,PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708990060038890 --mojo-platform-channel-handle=2464 /prefetch:1
          2⤵
            PID:3148
          • C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe
            "C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.22000.1 --user-data-dir="C:\Users\Admin\AppData\Roaming\legacylauncher" --gpu-preferences=SAAAAAAAAADoAAAEAAAAAAAAAAAAAGAAAQAAAAAAAAAAAAAAAAAAAEIAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1660,i,1398465283674754114,18302936601464760426,262144 --enable-features=EnableTransparentHwndEnlargement,PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708990997080739 --mojo-platform-channel-handle=3084 /prefetch:10
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:6048

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              default.dic

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

              data_0

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

              data_1

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

              data_2

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

              data_3

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

              Network Persistent State

              • Path C:\Users\Admin\AppData\Roaming\legacylauncher\Network\Network Persistent State
              • Size 552B
              • SHA256 0efa440ce6f613cb5afedbcfba4b8c8ecacf3b23d43f390b9861671c1cec4305
              • MD5 SHA1 SHA512 TLSH

              Network Persistent State~RFe592acf.TMP

              • Path C:\Users\Admin\AppData\Roaming\legacylauncher\Network\Network Persistent State~RFe592acf.TMP
              • Size 59B
              • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
              • MD5 SHA1 SHA512 TLSH

              config.json

              • Path C:\Users\Admin\AppData\Roaming\legacylauncher\config.json
              • Size 348B
              • SHA256 15fa59b07a5c23c233e05962414c0156faf600d1bd1828d6a22606b283176a70
              • MD5 SHA1 SHA512 TLSH

              config.json.tmp-67464413553ab223

              • Path C:\Users\Admin\AppData\Roaming\legacylauncher\config.json.tmp-67464413553ab223
              • Size 405B
              • SHA256 20491a1fbf2fd354fb9c76707e3d77dc13e0cb7dcf822a48b4f409d040ccc2a5
              • MD5 SHA1 SHA512 TLSH

              memory/6048-619-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-618-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-617-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-630-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-629-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-628-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-627-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-626-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-625-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp

              memory/6048-624-0x00000218AF1B0000-0x00000218AF1B1000-memory.dmp