Analysis

  • max time kernel
    298s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-en
  • resource tags

    arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/10/2026, 03:46

General

  • Target
    FileConverter-2.2-x64-setup.msi
  • Size 57.7MB
  • Sample261002-ebptksscpc
  • SHA256 78bb9755b35a94e59a72f299b6b63b5da472deb5c2b03ce016e5fe9f116a3554
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 9 IoCs
  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates connected drives 3 TTPs 47 IoCs

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

  • Drops file in Program Files directory 57 IoCs
  • Drops file in Windows directory 18 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 48 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 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:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\FileConverter-2.2-x64-setup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3708
  • 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 use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding B80506E69F414AF2388CF8C440C31551 C
      2⤵
      • Loads dropped DLL
      PID:4276
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3860
      • C:\Program Files\File Converter\FileConverter.exe
        "C:\Program Files\File Converter\FileConverter.exe" --register-shell-extension "C:\Program Files\File Converter\FileConverterExtension.dll"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2240
        • C:\Windows\Microsoft.Net\Framework64\v4.0.30319\regasm.exe
          "C:\Windows\Microsoft.Net\Framework64\v4.0.30319\regasm.exe" /codebase "C:\Program Files\File Converter\FileConverterExtension.dll"
          3⤵
          • Loads dropped DLL
          • Modifies data under HKEY_USERS
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          PID:1256
      • C:\Program Files\File Converter\FileConverter.exe
        "C:\Program Files\File Converter\FileConverter.exe" --post-install-init
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2252
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5948

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5947be.rbs

          • Path C:\Config.Msi\e5947be.rbs
          • Size 19KB
          • SHA256 5bb53caddf79eac3e3fad6a506ad27a31a8085bbe05f4c2c4a957f95224e7b5d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CommunityToolkit.Mvvm.dll

          • Path C:\Program Files\File Converter\CommunityToolkit.Mvvm.dll
          • Size 112KB
          • SHA256 e81f937cb4a70645e5106b22cc4972d4009f0527f19efa10eb74115c155fc66b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          FileConverter.exe.config

          • Path C:\Program Files\File Converter\FileConverter.exe.config
          • Size 1KB
          • SHA256 2c71bdbefb2d86096b7e836d2952c8354e2e01ea193592d53bcc3da920d0d266
          • MD5 SHA1 SHA512 TLSH

          FileConverterExtension.dll

          • Path C:\Program Files\File Converter\FileConverterExtension.dll
          • Size 319KB
          • SHA256 0c9083d43c29e3ea7e07e2fecc864057d74300882144846645c69b090bf08ab5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Bcl.AsyncInterfaces.dll

          • Path C:\Program Files\File Converter\Microsoft.Bcl.AsyncInterfaces.dll
          • Size 27KB
          • SHA256 bda069b17261a50f36b3a79a88b0243d7b9f6508725598adf88d42471977720e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Extensions.DependencyInjection.Abstractions.dll

          • Path C:\Program Files\File Converter\Microsoft.Extensions.DependencyInjection.Abstractions.dll
          • Size 64KB
          • SHA256 04f478ab7d1393686d55f80a79fac55f577b360f4424f7ea691a9eb979564977
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Extensions.DependencyInjection.dll

          • Path C:\Program Files\File Converter\Microsoft.Extensions.DependencyInjection.dll
          • Size 99KB
          • SHA256 e4f80f6fa0a63cc895ad6acb4c7ab86f4da270e619d56f35d7379172da93aee3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Settings.default.xml

          • Path C:\Program Files\File Converter\Settings.default.xml
          • Size 95KB
          • SHA256 de9823cd862be7234513c4e0b76cc3d5fcb99ab2ab4f3c5d123c1be944dca8b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          SharpShell.dll

          • Path C:\Program Files\File Converter\SharpShell.dll
          • Size 440KB
          • SHA256 63e0a221f9b84973195fb1514d06b26d7b5d539123ce010b7bbc3ee37ba0fca0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          System.Threading.Tasks.Extensions.dll

          • Path C:\Program Files\File Converter\System.Threading.Tasks.Extensions.dll
          • Size 27KB
          • SHA256 af4e13ef418fd89b432de20cd1dfb7fa10a7179c8dd049c9856316e50c5949ca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          30069012ED3CF5DB92F9F4FC78D55E2D_87238437CEFCADF00F1385E31A888EF4

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\30069012ED3CF5DB92F9F4FC78D55E2D_87238437CEFCADF00F1385E31A888EF4
          • Size 1KB
          • SHA256 ba5575b889306c1396506b2df949b195c0c8debf811ee162529139f1f908c34e
          • MD5 SHA1 SHA512 TLSH

          4E4160FB650E5091C535216313A4ECD3_54FE2DB854A61608CCAE6FB40014B35D

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\4E4160FB650E5091C535216313A4ECD3_54FE2DB854A61608CCAE6FB40014B35D
          • Size 2KB
          • SHA256 31de46dbb31d694e7c183e7edb4416aae1391fd512b07857ee817de36b5dc3b0
          • MD5 SHA1 SHA512 TLSH

          68FAF71AF355126BCA00CE2E73CC7374_E5F521CA60C5ED8C2B4E2BF399FE2061

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\68FAF71AF355126BCA00CE2E73CC7374_E5F521CA60C5ED8C2B4E2BF399FE2061
          • Size 1KB
          • SHA256 d2de0d894af355675fc898026096f8db7284cbe4fb75f592846214b0f7033e68
          • MD5 SHA1 SHA512 TLSH

          30069012ED3CF5DB92F9F4FC78D55E2D_87238437CEFCADF00F1385E31A888EF4

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\30069012ED3CF5DB92F9F4FC78D55E2D_87238437CEFCADF00F1385E31A888EF4
          • Size 412B
          • SHA256 acee3292144a1ada6961537c95983adf3f1cb6d44d6767a4b3bad76e987da659
          • MD5 SHA1 SHA512 TLSH

          4E4160FB650E5091C535216313A4ECD3_54FE2DB854A61608CCAE6FB40014B35D

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\4E4160FB650E5091C535216313A4ECD3_54FE2DB854A61608CCAE6FB40014B35D
          • Size 416B
          • SHA256 c64c9bf73b0615cf60e1ab77e270b97430af5b6f43fa6d6efcca074eb58b9513
          • MD5 SHA1 SHA512 TLSH

          68FAF71AF355126BCA00CE2E73CC7374_E5F521CA60C5ED8C2B4E2BF399FE2061

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\68FAF71AF355126BCA00CE2E73CC7374_E5F521CA60C5ED8C2B4E2BF399FE2061
          • Size 412B
          • SHA256 a0e764058ee4c82b4c34d0aecc82facd2836b4cdcd90469afbba37f6c717a77f
          • MD5 SHA1 SHA512 TLSH

          Settings.user.xml

          • Path C:\Users\Admin\AppData\Local\FileConverter\Settings.user.xml
          • Size 95KB
          • SHA256 d3381bc408ac8f5725b0193c365623f381e4b5727c3270ea2aaa289953353e5b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          FileConverter.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\FileConverter.exe.log
          • Size 1KB
          • SHA256 32057fc909fe5d91e3385994b05f8e635504de7dbd0aaa0fdba5e46f70172060
          • MD5 SHA1 SHA512 TLSH

          MSIFC4D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC4D.tmp
          • Size 175KB
          • SHA256 9d6745913a51d4c6749a4119f87da410cb226c45a72d6dbc3231efe5b928f491
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Icon.exe

          • Path C:\Windows\Installer\{108B7211-CD2B-4F28-9959-4888825EFCDA}\Icon.exe
          • Size 1.9MB
          • SHA256 162f16134c3ac80ff3322d2dce13d8fd4f0476108cb96415927ebea055abc241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.6MB
          • SHA256 bc1b49211d3f7f4ca4c3e006d9aa0984aa8822c0d2b93d013e855835d70f7bbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {1be6a305-a3d0-4f14-bcea-6476374a36a7}_OnDiskSnapshotProp

          • Path \??\Volume{190e5f65-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{1be6a305-a3d0-4f14-bcea-6476374a36a7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 cb4562208c5a17f0e4a1ace790af8bb185d6b7dd99ddb2c9730ae01ef1e9315c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1256-117-0x00000222505A0000-0x00000222505B0000-memory.dmp

          memory/1256-122-0x0000022250A60000-0x0000022250AAA000-memory.dmp

          memory/2240-106-0x000002B0B7500000-0x000002B0B751C000-memory.dmp

          memory/2240-108-0x000002B0B7280000-0x000002B0B728A000-memory.dmp

          memory/2240-114-0x000002B0B75A0000-0x000002B0B75F4000-memory.dmp

          memory/2240-110-0x000002B0B72D0000-0x000002B0B72DA000-memory.dmp

          memory/2240-116-0x000002B0B7680000-0x000002B0B76F4000-memory.dmp

          memory/2240-104-0x000002B0B74E0000-0x000002B0B74F4000-memory.dmp

          memory/2240-102-0x000002B0B72B0000-0x000002B0B72CA000-memory.dmp

          memory/2240-101-0x000002B0B7290000-0x000002B0B72B0000-memory.dmp

          memory/2240-99-0x000002B09B5F0000-0x000002B09B7D0000-memory.dmp