Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/11/2026, 23:49

General

  • Target
    win-frpc_0.1.0_x64_en-US.msi
  • Size 4.2MB
  • Sample261107-3va2jasw7k
  • SHA256 a011f1825b190eba5ee9f6d362bf1d4dba075ef22e60bc7dd445da8b3ac8eea8
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 38 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\win-frpc_0.1.0_x64_en-US.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5688
    • C:\Program Files\win-frpc\win-frpc.exe
      "C:\Program Files\win-frpc\win-frpc.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5136
      • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
        "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name=win-frpc.exe --webview-exe-version=0.0.0 --user-data-dir="C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --autoplay-policy=no-user-gesture-required --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --enable-features=MojoIpcz --lang=en-US --accept-lang=en-US --mojo-named-platform-channel-pipe=5136.5908.15128039977969845341 /pfhostedapp:a32f1acca3a6575dd9c3768de8057bc2838733d4
        3⤵
        • Drops file in Windows directory
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of WriteProcessMemory
        PID:5500
        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView /prefetch:4 /pfhostedapp:a32f1acca3a6575dd9c3768de8057bc2838733d4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Crashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=122.0.6261.139 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=122.0.2365.106 --initial-client-data=0x184,0x188,0x18c,0x160,0x198,0x7ffb15e25fd8,0x7ffb15e25fe4,0x7ffb15e25ff0
          4⤵
            PID:3000
          • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
            "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=gpu-process --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView" --webview-exe-name=win-frpc.exe --webview-exe-version=0.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1764 --field-trial-handle=1768,i,4114959029846325953,8336318204390064063,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:2 /pfhostedapp:a32f1acca3a6575dd9c3768de8057bc2838733d4
            4⤵
              PID:5788
            • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
              "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView" --webview-exe-name=win-frpc.exe --webview-exe-version=0.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2152 --field-trial-handle=1768,i,4114959029846325953,8336318204390064063,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:3 /pfhostedapp:a32f1acca3a6575dd9c3768de8057bc2838733d4
              4⤵
                PID:4976
              • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView" --webview-exe-name=win-frpc.exe --webview-exe-version=0.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2260 --field-trial-handle=1768,i,4114959029846325953,8336318204390064063,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:a32f1acca3a6575dd9c3768de8057bc2838733d4
                4⤵
                  PID:4164
                • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                  "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView" --webview-exe-name=win-frpc.exe --webview-exe-version=0.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --autoplay-policy=no-user-gesture-required --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --js-flags="--harmony-weak-refs-with-cleanup-some --expose-gc --ms-user-locale=" --mojo-platform-channel-handle=2908 --field-trial-handle=1768,i,4114959029846325953,8336318204390064063,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /pfhostedapp:a32f1acca3a6575dd9c3768de8057bc2838733d4 /prefetch:1
                  4⤵
                    PID:5764
                  • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView" --webview-exe-name=win-frpc.exe --webview-exe-version=0.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=4032 --field-trial-handle=1768,i,4114959029846325953,8336318204390064063,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:a32f1acca3a6575dd9c3768de8057bc2838733d4
                    4⤵
                      PID:5448
              • C:\Windows\system32\msiexec.exe
                C:\Windows\system32\msiexec.exe /V
                1⤵
                • Enumerates connected drives
                • Drops file in Program Files directory
                • Drops file in Windows directory
                • Modifies data under HKEY_USERS
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:5956
                • C:\Windows\syswow64\MsiExec.exe
                  C:\Windows\syswow64\MsiExec.exe -Embedding FA7B53513EF3600AF8158AF8431D34B4 C
                  2⤵
                  • Loads dropped DLL
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of SetWindowsHookEx
                  PID:1140
                • C:\Windows\system32\srtasks.exe
                  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
                  2⤵
                    PID:2288
                • C:\Windows\system32\vssvc.exe
                  C:\Windows\system32\vssvc.exe
                  1⤵
                  • Checks SCSI registry key(s)
                  PID:5356

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      e5a4e32.rbs

                      • Path C:\Config.Msi\e5a4e32.rbs
                      • Size 9KB
                      • SHA256 8b839772f1ff2c4b652498ca98856d9571021bd856aeb3f719a818da60719e99
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      win-frpc.exe

                      • Path C:\Program Files\win-frpc\win-frpc.exe
                      • Size 12.2MB
                      • SHA256 243712bb8cbe03d17c4b49d2fc887794eb1c76b3e6a0c286ac10f8bfeb304b1d
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      win-frpc.lnk

                      • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\win-frpc\win-frpc.lnk
                      • Size 1KB
                      • SHA256 a4b5e7d7eff5676725847616321d75756a5bc16cd0be79cc088c1d835c0bf59d
                      • MD5 SHA1 SHA512 TLSH

                      ~in-frpc.tmp

                      • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\win-frpc\~in-frpc.tmp
                      • Size 1KB
                      • SHA256 a7508f1eff402cfe8a2eaeb1b613e9782f5d7148f7d8d7a5f20b858d3e7a4234
                      • MD5 SHA1 SHA512 TLSH

                      MSIE4A9.tmp

                      • Path C:\Users\Admin\AppData\Local\Temp\MSIE4A9.tmp
                      • Size 132KB
                      • SHA256 7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      122b0c29-e67b-4abe-a5dc-3dd92eeff35f.tmp

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\122b0c29-e67b-4abe-a5dc-3dd92eeff35f.tmp
                      • Size 2KB
                      • SHA256 478aa2845126cafff96697c6ca48155f20dfda22a0dd03ba654263e256467711
                      • MD5 SHA1 SHA512 TLSH

                      4222eca0-4cfa-45fd-a584-1f1fd26b691d.tmp

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\4222eca0-4cfa-45fd-a584-1f1fd26b691d.tmp
                      • Size 3KB
                      • SHA256 4152256f3cf9f129375901a10539f4efaea20da33a60537b3892c22a29fe326f
                      • MD5 SHA1 SHA512 TLSH

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 772e575703defb9ca0682b9d77fb673b1b79cdbb18a56db7335be178361ef070
                      • MD5 SHA1 SHA512

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 3e5a5d4d8af6dbb88e3482856656687d414381abb14163660bd0b6a82d2f79af
                      • MD5 SHA1 SHA512 TLSH

                      throttle_store.dat

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Crashpad\throttle_store.dat
                      • Size 20B
                      • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                      • MD5 SHA1 SHA512

                      3c79dead-bffb-45e9-acea-04fe381cdc35.tmp

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\3c79dead-bffb-45e9-acea-04fe381cdc35.tmp
                      • Size 6KB
                      • SHA256 e81f755d13adcfc0a1c9ca843fa8c7ffc7d80cf67a6e55273a723faad584698c
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      temp-index

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\Code Cache\js\index-dir\temp-index
                      • Size 72B
                      • SHA256 716d6e4f00c746f78199a9622a0e9735039747eecad7a49dc077c05db86a6529
                      • MD5 SHA1 SHA512 TLSH

                      the-real-index

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                      • Size 48B
                      • SHA256 50cf78711b90a989a995531d4a2e1d8fcccc9db0eaa1ec3b7373da215ccf09c6
                      • MD5 SHA1 SHA512

                      CURRENT

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\Extension Rules\CURRENT
                      • Size 16B
                      • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                      • MD5 SHA1 SHA512

                      MANIFEST-000001

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\Extension Scripts\MANIFEST-000001
                      • Size 41B
                      • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                      • MD5 SHA1 SHA512

                      Network Persistent State

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\Network\Network Persistent State
                      • Size 59B
                      • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                      • MD5 SHA1 SHA512 TLSH

                      SCT Auditing Pending Reports

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\Network\SCT Auditing Pending Reports
                      • Size 2B
                      • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                      • MD5 SHA1 SHA512

                      e4094e01-f1cb-4583-b8a0-3964144f86ce.tmp

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Default\Network\e4094e01-f1cb-4583-b8a0-3964144f86ce.tmp
                      • Size 111B
                      • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                      • MD5 SHA1 SHA512 TLSH

                      data_0

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\GrShaderCache\data_0
                      • Size 8KB
                      • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                      • MD5 SHA1 SHA512 SSDEEP

                      data_2

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\GrShaderCache\data_2
                      • Size 8KB
                      • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                      • MD5 SHA1 SHA512 SSDEEP

                      data_3

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\GrShaderCache\data_3
                      • Size 8KB
                      • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                      • MD5 SHA1 SHA512 SSDEEP

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\Local State
                      • Size 1KB
                      • SHA256 84bb656a46194e4b683988fbd0b197fd79a374f978193f0aa977d7343d4ef382
                      • MD5 SHA1 SHA512 TLSH

                      cdcb23d9-b6a5-4c7e-85c2-e1922f08b751.tmp

                      • Path C:\Users\Admin\AppData\Local\com.win-frpc.dev\EBWebView\cdcb23d9-b6a5-4c7e-85c2-e1922f08b751.tmp
                      • Size 15KB
                      • SHA256 7d821369e1a43fdad170ac8a80bc8f635295774d0c5824b89c74e113ca0f68aa
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      e5a4e33.msi

                      • Path C:\Windows\Installer\e5a4e33.msi
                      • Size 4.2MB
                      • SHA256 a011f1825b190eba5ee9f6d362bf1d4dba075ef22e60bc7dd445da8b3ac8eea8
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      Other

                      • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping5500_2035415595\Sigma\Other
                      • Size 34B
                      • SHA256 2b4a47b82cbe70e34407c7df126a24007aff8b45d5716db384d27cc1f3b30707
                      • MD5 SHA1 SHA512

                      manifest.json

                      • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping5500_2035415595\manifest.json
                      • Size 132B
                      • SHA256 de864bf0ab8abacfba536d4e9764eca658f903bd2457f955e128c4ee181c7e58
                      • MD5 SHA1 SHA512 TLSH

                      metadata-2

                      • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                      • Size 26.1MB
                      • SHA256 8634782ced58f8bb27447b94b812e8127f35f85ba5f591ecb94eb65912591da6
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      {92dc7dc3-8429-42aa-9e49-290e5fc464cb}_OnDiskSnapshotProp

                      • Path \??\Volume{e3f46304-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{92dc7dc3-8429-42aa-9e49-290e5fc464cb}_OnDiskSnapshotProp
                      • Size 6KB
                      • SHA256 6cdac0f42390ba0f2a87892e14aad2e00b79fb3048ac37fd3dbfe6f2518f0507
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      memory/5448-307-0x00007FFB38E40000-0x00007FFB38E41000-memory.dmp

                      memory/5448-306-0x00007FFB38E30000-0x00007FFB38E31000-memory.dmp

                      memory/5764-124-0x00007FFB394B0000-0x00007FFB394B1000-memory.dmp

                      memory/5788-241-0x000002092A000000-0x000002092A159000-memory.dmp

                      memory/5788-71-0x00007FFB394B0000-0x00007FFB394B1000-memory.dmp

                      memory/5956-55-0x000002C3293D0000-0x000002C329D74000-memory.dmp