Analysis

  • user interaction
    yes
  • max time kernel
    37s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    11/05/2026, 08:31

General

  • Target
    naps2-8.2.1-win-x64.exe
  • Size 44.8MB
  • Sample260511-keytjsdt9s
  • SHA256 542b9a9d4e63f303c978af7dccfc6a969c3ccb1ddafb10b6f4f2939d54a09a0d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 64 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 3 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

  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\naps2-8.2.1-win-x64.exe
    "C:\Users\Admin\AppData\Local\Temp\naps2-8.2.1-win-x64.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4944
    • C:\Users\Admin\AppData\Local\Temp\is-ICJDJ.tmp\naps2-8.2.1-win-x64.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ICJDJ.tmp\naps2-8.2.1-win-x64.tmp" /SL5="$4017C,45816457,867840,C:\Users\Admin\AppData\Local\Temp\naps2-8.2.1-win-x64.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:4876
      • C:\Program Files\NAPS2\NAPS2.exe
        "C:\Program Files\NAPS2\NAPS2.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3704
        • C:\Program Files\NAPS2\NAPS2.exe
          "C:\Program Files\NAPS2\NAPS2.exe" worker 3704
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:3308
        • C:\Program Files\NAPS2\lib\NAPS2.Worker.exe
          "C:\Program Files\NAPS2\lib\NAPS2.Worker.exe" 3704
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:3652
        • C:\Program Files\NAPS2\NAPS2.exe
          "C:\Program Files\NAPS2\NAPS2.exe" worker 3704
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4516

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        NAPS2.exe

        • Path C:\Program Files\NAPS2\NAPS2.exe
        • Size 252KB
        • SHA256 d15d7bfdfa8f6470cbc096313a017509c7d7a52118f178d679fd6e7cdcd41d12
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Autofac.dll

        • Path C:\Program Files\NAPS2\lib\Autofac.dll
        • Size 373KB
        • SHA256 d53799c4f46bd1550c543822105f1c5e172ebccc4e0713f0a457804bb6d97f74
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Eto.dll

        • Path C:\Program Files\NAPS2\lib\Eto.dll
        • Size 755KB
        • SHA256 61004e8ed18f37877781fc16be59f87558b96bfa93d07f078ee675e5ec781118
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Extensions.Logging.Abstractions.dll

        • Path C:\Program Files\NAPS2\lib\Microsoft.Extensions.Logging.Abstractions.dll
        • Size 63KB
        • SHA256 0dce32c03f338e04a42bde3a364b45f22388a876979793098ba973048163d609
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Win32.SystemEvents.dll

        • Path C:\Program Files\NAPS2\lib\Microsoft.Win32.SystemEvents.dll
        • Size 102KB
        • SHA256 c8aa442f0bb0d2c2fa97212f3bc7aab9870df183ed1ffd56ff878ed842bba97d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.Escl.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.Escl.dll
        • Size 100KB
        • SHA256 b59e470433fa935ea813701efac6d7ec9c19310d0ffa40fe72573bb72076b4a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.Images.Gdi.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.Images.Gdi.dll
        • Size 28KB
        • SHA256 cc564dc0f669021d29f7b0ddd5b2fca67cc2aa1cb337cfb8fe0140d9133946c3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.Images.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.Images.dll
        • Size 129KB
        • SHA256 3f77330d2a2c11c0edd6bf9dda5fa76158179ad24bf395f7e1e4ac06dea8f638
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.Internals.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.Internals.dll
        • Size 94KB
        • SHA256 90d8ffea84f1731e9c1a4d07d5efc20a077df740a58fec98649632c36cfd463c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.Lib.WinForms.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.Lib.WinForms.dll
        • Size 123KB
        • SHA256 00617021026a09d4d70cd7f168a5c3020b771dd2a2d343db35c9c4363422ee27
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.Lib.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.Lib.dll
        • Size 1.4MB
        • SHA256 fea68b2c5a382d3c4e9a7857e09c17cf1a10f1ae035444d20743107844fe935d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.Sdk.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.Sdk.dll
        • Size 609KB
        • SHA256 a8b95f5937c4a52842a7b2337bc04a53e14304042a66162fc69fdadf7ee4cbc6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.deps.json

        • Path C:\Program Files\NAPS2\lib\NAPS2.deps.json
        • Size 114KB
        • SHA256 ea64f7ae04c8d9ad4d93e3308b4a9830c109db5c9643b605c38883b76d040c52
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.dll

        • Path C:\Program Files\NAPS2\lib\NAPS2.dll
        • Size 112KB
        • SHA256 094e725de7e9be9076825c4567ac6d1a983d6c9479aa7b55c510d64d7ca47819
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NAPS2.runtimeconfig.json

        • Path C:\Program Files\NAPS2\lib\NAPS2.runtimeconfig.json
        • Size 673B
        • SHA256 3867d0d065b9fc352c3526d57eb13edd7b3ea274699283ea4b250a514d49b282
        • MD5 SHA1 SHA512 TLSH

        System.Collections.Concurrent.dll

        • Path C:\Program Files\NAPS2\lib\System.Collections.Concurrent.dll
        • Size 286KB
        • SHA256 2ab8bd5f82d1c0b1cc2bbf98d716c0c41f2c01e7e1d2492f65a22b18b85a9092
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Collections.Immutable.dll

        • Path C:\Program Files\NAPS2\lib\System.Collections.Immutable.dll
        • Size 882KB
        • SHA256 289c5ae72d745ec399c1234c74f40f5cf77db7215b0083cf1021c5dfc3d1893f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Collections.dll

        • Path C:\Program Files\NAPS2\lib\System.Collections.dll
        • Size 326KB
        • SHA256 f40ad8f400cd9ee968fddbca77bab337c4959f81d86aebc8af00c4e7cec86acc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.ComponentModel.EventBasedAsync.dll

        • Path C:\Program Files\NAPS2\lib\System.ComponentModel.EventBasedAsync.dll
        • Size 46KB
        • SHA256 94eb568f0f9fb398571745721f4df22a71458e415787ad038f30ad8ed961ebe3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.ComponentModel.dll

        • Path C:\Program Files\NAPS2\lib\System.ComponentModel.dll
        • Size 30KB
        • SHA256 3e2fc7f36b9b628df016d5676519165bb95bb51b6fe9077109957959436fd4d7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Diagnostics.TextWriterTraceListener.dll

        • Path C:\Program Files\NAPS2\lib\System.Diagnostics.TextWriterTraceListener.dll
        • Size 66KB
        • SHA256 018509d3131ce99daf4c69c0558b628d90f000d16df625ca9c14fd3fd5124422
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Diagnostics.TraceSource.dll

        • Path C:\Program Files\NAPS2\lib\System.Diagnostics.TraceSource.dll
        • Size 142KB
        • SHA256 fb800cc177198d5ece257100dcb30093e237b2a40a82c54c8b8acc756c5e19d3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Linq.Expressions.dll

        • Path C:\Program Files\NAPS2\lib\System.Linq.Expressions.dll
        • Size 3.5MB
        • SHA256 4c08ded7327814783c368de42eda69c331d8ad846d1b836508cae2cbd2aacdb6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Linq.dll

        • Path C:\Program Files\NAPS2\lib\System.Linq.dll
        • Size 642KB
        • SHA256 1b1c17d8d1bd8b74a8cd3703cc7aeb9eede83365bcef0a7bf86f3c37a46937fa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Memory.dll

        • Path C:\Program Files\NAPS2\lib\System.Memory.dll
        • Size 158KB
        • SHA256 d1393e0205fac92113dd89bb6e009ce6f5d65555047b4d047ea9801a511a1c21
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Private.CoreLib.dll

        • Path C:\Program Files\NAPS2\lib\System.Private.CoreLib.dll
        • Size 14.6MB
        • SHA256 28d107b5b3b049eac7e953a02d35a289f6aa4de171efdcb5a5ea1966210f9b9f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Private.Xml.Linq.dll

        • Path C:\Program Files\NAPS2\lib\System.Private.Xml.Linq.dll
        • Size 390KB
        • SHA256 aea84282de239e466399d759c934cbbb57af841e2055f3f6b803efdfe06dea92
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Private.Xml.dll

        • Path C:\Program Files\NAPS2\lib\System.Private.Xml.dll
        • Size 7.6MB
        • SHA256 465faa5cdee43422a58c971e6a71d438eb7d6047178e2c136175acc24456412f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Runtime.InteropServices.dll

        • Path C:\Program Files\NAPS2\lib\System.Runtime.InteropServices.dll
        • Size 110KB
        • SHA256 4600e49854c34551d9f9124327f0ab318278323a22ccfffddbf0164c19d2952d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Runtime.dll

        • Path C:\Program Files\NAPS2\lib\System.Runtime.dll
        • Size 43KB
        • SHA256 3aa6be6d442bc08a0f685ba94ad3a8bcda5e50a3db996c9b08ca2dbe121a8e73
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Threading.Thread.dll

        • Path C:\Program Files\NAPS2\lib\System.Threading.Thread.dll
        • Size 15KB
        • SHA256 e26e2f33fa910923699fbc35d493f975486d2ec47c32a0032cd82ac7ae74d757
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Threading.dll

        • Path C:\Program Files\NAPS2\lib\System.Threading.dll
        • Size 82KB
        • SHA256 a956f44e16c3f2cc6457012a606399a1bc6942bdc9b215639f2e06366d6306cb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Xml.ReaderWriter.dll

        • Path C:\Program Files\NAPS2\lib\System.Xml.ReaderWriter.dll
        • Size 21KB
        • SHA256 a48c3bb37b6a9d6da2ca5b0565d24f829707d746f27ee5dac5d0caf1017287c6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Xml.XDocument.dll

        • Path C:\Program Files\NAPS2\lib\System.Xml.XDocument.dll
        • Size 15KB
        • SHA256 2cfe827b367b8879175409867ab2af6ef577b88d434701a00d0a8a1cfc539ab0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.Xml.XmlSerializer.dll

        • Path C:\Program Files\NAPS2\lib\System.Xml.XmlSerializer.dll
        • Size 17KB
        • SHA256 786c656aa8210b564b0ba86fb9aba3460cfa4b1e7480d520d5b9df8d5f1039af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        clrjit.dll

        • Path C:\Program Files\NAPS2\lib\clrjit.dll
        • Size 1.9MB
        • SHA256 b7965711666ce4467570b3e7982e5b9dbedf88d0c6b5b39c33b559d7e913aaf4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        coreclr.dll

        • Path C:\Program Files\NAPS2\lib\coreclr.dll
        • Size 4.6MB
        • SHA256 b0e101864621c0edbeb9d3cf2ec6552d9e68b857928de2e645f4c142009a2a31
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hostfxr.dll

        • Path C:\Program Files\NAPS2\lib\hostfxr.dll
        • Size 349KB
        • SHA256 bf74c117e359a9ab4b9e955e5af95d3b785657178893733f429191fd41ba76ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hostpolicy.dll

        • Path C:\Program Files\NAPS2\lib\hostpolicy.dll
        • Size 365KB
        • SHA256 4e295ae3d9c661ff7bdbbd29df14938c469d4a92efd1bda4998aca141bd0dd53
        • MD5 SHA1 SHA512 SSDEEP TLSH

        naps2-8.2.1-win-x64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-ICJDJ.tmp\naps2-8.2.1-win-x64.tmp
        • Size 3.4MB
        • SHA256 5742db332455f322599c3f20a3f9f26fe76286dfda36b36246f68d04dd4a2695
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3308-875-0x000002CC7C570000-0x000002CC7C5A1000-memory.dmp

        memory/3704-874-0x000001F5772D0000-0x000001F577301000-memory.dmp

        memory/4516-879-0x000001DC81280000-0x000001DC812B1000-memory.dmp

        memory/4876-9-0x00000000032D0000-0x00000000032D1000-memory.dmp

        memory/4876-8-0x0000000000CD0000-0x0000000001047000-memory.dmp

        memory/4876-867-0x0000000000CD0000-0x0000000001047000-memory.dmp

        memory/4876-802-0x0000000000CD0000-0x0000000001047000-memory.dmp

        memory/4876-5-0x00000000032D0000-0x00000000032D1000-memory.dmp

        memory/4944-0-0x0000000000F10000-0x0000000000FF4000-memory.dmp

        memory/4944-7-0x0000000000F10000-0x0000000000FF4000-memory.dmp

        memory/4944-868-0x0000000000F10000-0x0000000000FF4000-memory.dmp