Analysis

  • max time kernel
    151s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 10:41

General

  • Target
    oncesport_installer.exe
  • Size 294.6MB
  • Sample260910-mracts1hnd
  • SHA256 bab4cd5a161b16ecc598a2b2280310cce471da3c532d4078ecd1a271c7a10bbf
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 45 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Inno Setup is an open-source installation builder for Windows applications. 3 IoCs

    Inno Setup installer

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

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

  • Modifies registry class 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\oncesport_installer.exe
    "C:\Users\Admin\AppData\Local\Temp\oncesport_installer.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Users\Admin\AppData\Local\Temp\is-5UOQT.tmp\oncesport_installer.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-5UOQT.tmp\oncesport_installer.tmp" /SL5="$80214,307769417,843264,C:\Users\Admin\AppData\Local\Temp\oncesport_installer.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4664
      • C:\Users\Admin\AppData\Local\Temp\is-PR3HV.tmp\vcredist.exe
        "C:\Users\Admin\AppData\Local\Temp\is-PR3HV.tmp\vcredist.exe" /install /passive /norestart
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1956
        • C:\Windows\Temp\{16F9820A-435B-45D5-B61C-B27F61555080}\.cr\vcredist.exe
          "C:\Windows\Temp\{16F9820A-435B-45D5-B61C-B27F61555080}\.cr\vcredist.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\is-PR3HV.tmp\vcredist.exe" -burn.filehandle.attached=748 -burn.filehandle.self=752 /install /passive /norestart
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:5096
          • C:\Windows\Temp\{A5B96C50-0847-48EF-A8C9-7E9BF58C9B76}\.be\VC_redist.x64.exe
            "C:\Windows\Temp\{A5B96C50-0847-48EF-A8C9-7E9BF58C9B76}\.be\VC_redist.x64.exe" -q -burn.elevated BurnPipe.{5502E98C-E117-49E5-8691-0DCB35F8EFA1} {45E47450-0AF4-4EA6-8507-75C93AA9A4F9} 5096
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2728
      • C:\Program Files (x86)\Once Sport\OnceSport.exe
        "C:\Program Files (x86)\Once Sport\OnceSport.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:2780
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:596
  • C:\Windows\system32\srtasks.exe
    C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4200

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Avalonia.Base.dll

        • Path C:\Program Files (x86)\Once Sport\Avalonia.Base.dll
        • Size 2.2MB
        • SHA256 484acb4faf567dc803282cf9cc438967b1082e9e18bae22f30985b5bcbae9dcf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Avalonia.Controls.dll

        • Path C:\Program Files (x86)\Once Sport\Avalonia.Controls.dll
        • Size 1.3MB
        • SHA256 e54cccfdcee69608e47ae81931c997618653a7659ca0e1b38e56b32ac301ccc1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Libmio.dll

        • Path C:\Program Files (x86)\Once Sport\Libmio.dll
        • Size 102KB
        • SHA256 5d2c2be052114119e2e331b07f73193054c256f88827f8faf483e315ba6791b4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NLog.dll

        • Path C:\Program Files (x86)\Once Sport\NLog.dll
        • Size 910KB
        • SHA256 400eab5fc337a15e20d23010711bbed238269bc7c261b44d628fdf3cf4e8743b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Once.VideoAnalyser.AI.dll

        • Path C:\Program Files (x86)\Once Sport\Once.VideoAnalyser.AI.dll
        • Size 86KB
        • SHA256 c0523662f36283a00c12d8625c61d60bb87104e1b56195a1342bb857b3064256
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OnceSport.deps.json

        • Path C:\Program Files (x86)\Once Sport\OnceSport.deps.json
        • Size 70KB
        • SHA256 760fe7c5088fd6a68539d92d8c7ff4bb5ab70ecfa5754d1eb21a4c5d8c93e4f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OnceSport.dll

        • Path C:\Program Files (x86)\Once Sport\OnceSport.dll
        • Size 29.3MB
        • SHA256 8aeeec7ed592ef9c42d97d40d9720f7d30eb58dea5defb8a547823e84dcde4c6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OnceSport.exe

        • Path C:\Program Files (x86)\Once Sport\OnceSport.exe
        • Size 187KB
        • SHA256 181834308a673aa9f01d32262be144d73b37cb3fb94749080825492657ddf79e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OnceSport.runtimeconfig.json

        • Path C:\Program Files (x86)\Once Sport\OnceSport.runtimeconfig.json
        • Size 432B
        • SHA256 ca651686f6d6d5bac5d971814ba1368652615f26438519376ded2ed806f136a0
        • MD5 SHA1 SHA512 TLSH

        ReactiveUI.dll

        • Path C:\Program Files (x86)\Once Sport\ReactiveUI.dll
        • Size 560KB
        • SHA256 cfc37a8867821ab63c90781c7b36674b9a8ef6d4cfb093d4f55059c79a9384b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Splat.Builder.dll

        • Path C:\Program Files (x86)\Once Sport\Splat.Builder.dll
        • Size 28KB
        • SHA256 59331f785a7041226866df9e2da742a7377bb76a2c947ff0e358039b14131315
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Splat.Core.dll

        • Path C:\Program Files (x86)\Once Sport\Splat.Core.dll
        • Size 111KB
        • SHA256 f8c0839d7071453c19b449881c8fe268a2a0718375e74b746fcb2d0b512d95c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Splat.Logging.dll

        • Path C:\Program Files (x86)\Once Sport\Splat.Logging.dll
        • Size 106KB
        • SHA256 056e1802af4eeaf2e9a36f49d7b520a049e78b2ce5c29ce02b9486efd732f8b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Collections.dll

        • Path C:\Program Files (x86)\Once Sport\System.Collections.dll
        • Size 291KB
        • SHA256 38bb6e11303e97dae2af6a63f974e0159efbbf4fad00b8a5c9768b41247e851f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.ComponentModel.Primitives.dll

        • Path C:\Program Files (x86)\Once Sport\System.ComponentModel.Primitives.dll
        • Size 79KB
        • SHA256 dca83415c0786716eddf7b9c3de91858ee85d9df0567abeac245c4f53182cc00
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.ComponentModel.dll

        • Path C:\Program Files (x86)\Once Sport\System.ComponentModel.dll
        • Size 31KB
        • SHA256 d9e8cdecaa0b347a387c84f5d54a99c2008d77a03e44c90d28e944d32b7efc20
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Console.dll

        • Path C:\Program Files (x86)\Once Sport\System.Console.dll
        • Size 167KB
        • SHA256 fd1dc1b0ca8a52d942726795095e2326d3c5b9da4f7fe78868e21ea24b1cda02
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Diagnostics.DiagnosticSource.dll

        • Path C:\Program Files (x86)\Once Sport\System.Diagnostics.DiagnosticSource.dll
        • Size 491KB
        • SHA256 6758befe50d4095664821ec847ff293aba0496b44ab696fe1dbc1a139f8b4ed1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Diagnostics.Tracing.dll

        • Path C:\Program Files (x86)\Once Sport\System.Diagnostics.Tracing.dll
        • Size 17KB
        • SHA256 1487b042beb3fe33b5c9295701f4882bcba794acd5ba6ca5d7fc921648cbc371
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Linq.dll

        • Path C:\Program Files (x86)\Once Sport\System.Linq.dll
        • Size 683KB
        • SHA256 c8b3a43d2f18cf305946d0b6bd013bed2e0e71fdab7e09e2dca92213a776b4a9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Net.Http.dll

        • Path C:\Program Files (x86)\Once Sport\System.Net.Http.dll
        • Size 1.7MB
        • SHA256 787beaeed33da9d236f120932dfe125efdf9c0a813a09cef588dfbab8843e351
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Net.Primitives.dll

        • Path C:\Program Files (x86)\Once Sport\System.Net.Primitives.dll
        • Size 207KB
        • SHA256 a686a6d57f76164308ca968058bc7fb33ee8b1bc40870299090f46c54391f0d8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.ObjectModel.dll

        • Path C:\Program Files (x86)\Once Sport\System.ObjectModel.dll
        • Size 79KB
        • SHA256 0205f2bbe9d2bf756278ebdd55b2a939fa3c1928aee272ed98b11b088de26e0b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Private.CoreLib.dll

        • Path C:\Program Files (x86)\Once Sport\System.Private.CoreLib.dll
        • Size 15.3MB
        • SHA256 c865b0925fce049ff84a9b9b81b8dd51f87bbe88fc183170e99171d9ad111a01
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Private.Uri.dll

        • Path C:\Program Files (x86)\Once Sport\System.Private.Uri.dll
        • Size 251KB
        • SHA256 687ca4812588b44e75fef080e272d9db3a7d7d91082b1c2fe67e071b8133d243
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Runtime.InteropServices.dll

        • Path C:\Program Files (x86)\Once Sport\System.Runtime.InteropServices.dll
        • Size 111KB
        • SHA256 2bd8b0b615466e3e68a3c5616a9df7053aced1dbfc65fadf30237f424a2a2f3e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Runtime.dll

        • Path C:\Program Files (x86)\Once Sport\System.Runtime.dll
        • Size 45KB
        • SHA256 bd4386e14ab2b1769f163f41aba404cc5d96b68b2aa3501eda803d7bbaea7ee3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Text.Encoding.Extensions.dll

        • Path C:\Program Files (x86)\Once Sport\System.Text.Encoding.Extensions.dll
        • Size 17KB
        • SHA256 7d612247b9ce5f2a410a9c70d090b7f1683238ebe88a82ad417fa8a3a090a390
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Threading.Thread.dll

        • Path C:\Program Files (x86)\Once Sport\System.Threading.Thread.dll
        • Size 17KB
        • SHA256 905a49d09edb2f3e196a6cf927580d31302c090c4b07a04d0c847144aea89b3f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Threading.dll

        • Path C:\Program Files (x86)\Once Sport\System.Threading.dll
        • Size 83KB
        • SHA256 ef4f2428a2c0513800590a78763149dfdf653792534cc9226fc28f862a9ee036
        • MD5 SHA1 SHA512 SSDEEP TLSH

        is-O1PFK.tmp

        • Path C:\Program Files (x86)\Once Sport\UI\DAL\Database\Rugby\is-O1PFK.tmp
        • Size 12KB
        • SHA256 dde16311b16890703717fdddeb05144a45cd3a089bbda1d5255c2c5b20a5b724
        • MD5 SHA1 SHA512 SSDEEP TLSH

        buildinfo.txt

        • Path C:\Program Files (x86)\Once Sport\buildinfo.txt
        • Size 56B
        • SHA256 dfceb5311f9c68b744bc21aad56533426ef9c4bba31135de1dd660e9a25806da
        • MD5 SHA1 SHA512 TLSH

        clrjit.dll

        • Path C:\Program Files (x86)\Once Sport\clrjit.dll
        • Size 2.0MB
        • SHA256 1b7f449ca15798b3b76c9a73690bb845f959c3ce798bae482a61c093e64aa6ce
        • MD5 SHA1 SHA512 SSDEEP TLSH

        coreclr.dll

        • Path C:\Program Files (x86)\Once Sport\coreclr.dll
        • Size 4.4MB
        • SHA256 2b2302d0aacce87dcc7dc8a8e5c18d64d85a32f443a8bca4ad876ac8d4c3e642
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hostfxr.dll

        • Path C:\Program Files (x86)\Once Sport\hostfxr.dll
        • Size 372KB
        • SHA256 978a5f0068e07fb8fa8958467f7dc14679134152576b81ff6535bdc2230d2a20
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hostpolicy.dll

        • Path C:\Program Files (x86)\Once Sport\hostpolicy.dll
        • Size 371KB
        • SHA256 181255049f02932e8d397636ac54a3a634ce7a94e0b35b13f39a8c3e2c9bfd7d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        netstandard.dll

        • Path C:\Program Files (x86)\Once Sport\netstandard.dll
        • Size 100KB
        • SHA256 82f4e7c34477b74978eceea8b92e1eef0cc88b4792159162aa271256a52351d5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        oncesport_installer.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-5UOQT.tmp\oncesport_installer.tmp
        • Size 3.4MB
        • SHA256 add2ec7663b235c0d896cd8df785b42ee9922d33d9b83613105e456770a9801f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcredist.exe

        • Path C:\Users\Admin\AppData\Local\Temp\is-PR3HV.tmp\vcredist.exe
        • Size 24.4MB
        • SHA256 cc0ff0eb1dc3f5188ae6300faef32bf5beeba4bdd6e8e445a9184072096b713b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcredist.exe

        • Path C:\Windows\Temp\{16F9820A-435B-45D5-B61C-B27F61555080}\.cr\vcredist.exe
        • Size 670KB
        • SHA256 568c9ba533624084ea18f7a562b4aa2249ed4e41281524a061a0d0b1008cf6bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logo.png

        • Path C:\Windows\Temp\{A5B96C50-0847-48EF-A8C9-7E9BF58C9B76}\.ba\logo.png
        • Size 1KB
        • SHA256 335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef
        • MD5 SHA1 SHA512 TLSH

        wixstdba.dll

        • Path C:\Windows\Temp\{A5B96C50-0847-48EF-A8C9-7E9BF58C9B76}\.ba\wixstdba.dll
        • Size 215KB
        • SHA256 e921f69b9fb4b5ad4691809d06896c5f1d655ab75e0ce94a372319c243c56d4e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2692-1-0x0000000000C90000-0x0000000000D6D000-memory.dmp

        memory/2692-7-0x0000000000C90000-0x0000000000D6D000-memory.dmp

        memory/2692-1033-0x0000000000C90000-0x0000000000D6D000-memory.dmp

        memory/4664-959-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-12-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-8-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-9-0x0000000003370000-0x0000000003371000-memory.dmp

        memory/4664-14-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-123-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-425-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-6-0x0000000003370000-0x0000000003371000-memory.dmp

        memory/4664-1032-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-1013-0x0000000000CD0000-0x000000000104F000-memory.dmp

        memory/4664-1016-0x0000000000CD0000-0x000000000104F000-memory.dmp