Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 12:19

General

  • Target
    OpenVPN-2.6.14-windows-amd64.msi
  • Size 5.5MB
  • Sample260804-pg92tazera
  • SHA256 19bca902826ef0dc9a6cf849297ce43ba8b2844bdb913c37230308d3274c953c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 6 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Drops file in Drivers directory 9 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 22 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Badlisted process makes network request 2 IoCs

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

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 27 IoCs
  • Drops file in Windows directory 41 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 57 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 11 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\OpenVPN-2.6.14-windows-amd64.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:5396
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Adds Run key to start application
    • 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:6036
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding D53F803212DC3E44112D31959A00EC6D C
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4460
      • C:\Program Files\OpenVPN\bin\openvpn-gui.exe
        "C:\Program Files\OpenVPN\bin\openvpn-gui.exe"
        3⤵
        • Executes dropped EXE
        PID:4904
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4812
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 2B0558225605D23DFD1AADF9989A3885
        2⤵
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        PID:3320
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 7D6EA470DCD711875AADF4DDDE39164A E Global\MSI0000
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Loads dropped DLL
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Checks SCSI registry key(s)
        • Modifies data under HKEY_USERS
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2700
        • C:\Windows\System32\netsh.exe
          netsh interface set interface name="Local Area Connection" newname="OpenVPN Wintun"
          3⤵
          • Event Triggered Execution: Netsh Helper DLL
          PID:1580
        • C:\Windows\System32\netsh.exe
          netsh interface set interface name="Local Area Connection" newname="OpenVPN TAP-Windows6"
          3⤵
          • Event Triggered Execution: Netsh Helper DLL
          PID:1016
        • C:\Windows\System32\netsh.exe
          netsh interface set interface name="Local Area Connection" newname="OpenVPN Data Channel Offload"
          3⤵
          • Event Triggered Execution: Netsh Helper DLL
          PID:5840
        • C:\Windows\System32\sc.exe
          "C:\Windows\System32\sc.exe" config OpenVPNService start= auto
          3⤵
          • Launches sc.exe
          PID:1260
        • C:\Windows\System32\sc.exe
          "C:\Windows\System32\sc.exe" start OpenVPNService
          3⤵
          • Launches sc.exe
          PID:604
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:6004
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "1" "C:\Windows\Temp\fc0e6b860b50f073bf13a7f68ccea1fb42ab73045ee4d2aff48c9c00401ec705\wintun.inf" "9" "46f7a3dcf" "0000000000000198" "WinSta0\Default" "0000000000000174" "208" "C:\Windows\Temp\fc0e6b860b50f073bf13a7f68ccea1fb42ab73045ee4d2aff48c9c00401ec705"
      1⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:4288
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "1" "C:\Windows\Temp\2d433454397bd5dede613388c473d0938856beee5822489e9cb1f16bfab50adf\OemVista.inf" "9" "407ede39f" "0000000000000114" "WinSta0\Default" "00000000000000EC" "208" "C:\Windows\Temp\2d433454397bd5dede613388c473d0938856beee5822489e9cb1f16bfab50adf"
      1⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:5504
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "1" "C:\Program Files\Common Files\ovpn-dco\Win11\ovpn-dco.inf" "9" "4e746adf3" "00000000000000EC" "WinSta0\Default" "000000000000017C" "208" "C:\Program Files\Common Files\ovpn-dco\Win11"
      1⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:1536
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "2" "11" "ROOT\NET\0000" "C:\Windows\System32\DriverStore\FileRepository\wintun.inf_amd64_def3401515466414\wintun.inf" "oem1.inf:9ef34515d755ec66:Wintun.Install:0.8.0.0:wintun," "42b53aaff" "0000000000000114" "5bbe"
      1⤵
      • Drops file in Drivers directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      PID:3288
    • C:\Program Files\OpenVPN\bin\openvpn-gui.exe
      "C:\Program Files\OpenVPN\bin\openvpn-gui.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5192
      • C:\Program Files\OpenVPN\bin\openvpn.exe
        openvpn --version
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1896
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
      1⤵
      • Modifies data under HKEY_USERS
      PID:5256
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "2" "11" "ROOT\NET\0001" "C:\Windows\System32\DriverStore\FileRepository\oemvista.inf_amd64_ba3e477187f1080b\oemvista.inf" "oem2.inf:3beb73aff103cc24:tap0901.ndi:9.27.0.0:root\tap0901," "433338203" "000000000000017C" "5bbe"
      1⤵
      • Drops file in Drivers directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      PID:3916
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "2" "11" "ROOT\NET\0002" "C:\Windows\System32\DriverStore\FileRepository\ovpn-dco.inf_amd64_b737bb7e846ccda6\ovpn-dco.inf" "oem3.inf:c695c3de07ba2b5d:ovpn-dco_Device:1.2.1.0:ovpn-dco," "43b135903" "0000000000000114" "5bbe"
      1⤵
      • Drops file in Drivers directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      PID:2560
    • C:\Program Files\OpenVPN\bin\openvpnserv.exe
      "C:\Program Files\OpenVPN\bin\openvpnserv.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2524
    • C:\Program Files\OpenVPN\bin\openvpnserv2.exe
      "C:\Program Files\OpenVPN\bin\openvpnserv2.exe"
      1⤵
      • Executes dropped EXE
      PID:6080
    • C:\Program Files\OpenVPN\bin\openvpnserv2.exe
      "C:\Program Files\OpenVPN\bin\openvpnserv2.exe"
      1⤵
      • Executes dropped EXE
      PID:3004
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:4960

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e59ed36.rbs

            • Path C:\Config.Msi\e59ed36.rbs
            • Size 876KB
            • SHA256 9f62ef2a5d328cda363b2c02236601b82ab76373f5ee9c8aaea9a23284448858
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ovpn-dco.cat

            • Path C:\PROGRA~1\COMMON~1\ovpn-dco\Win11\ovpn-dco.cat
            • Size 11KB
            • SHA256 8c9456aeacd5566234519b5b34ceecd0f7ebb22f6813747e595f5945517ec438
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ovpn-dco.sys

            • Path C:\PROGRA~1\COMMON~1\ovpn-dco\Win11\ovpn-dco.sys
            • Size 90KB
            • SHA256 2c2958dac6f36922ae094705e058bf6470e1622b31318fb9fe0db5457e383f45
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ovpn-dco.inf

            • Path C:\Program Files\Common Files\ovpn-dco\Win11\ovpn-dco.inf
            • Size 2KB
            • SHA256 1f6c35bc11d910f91c32ea54894d0fddb0094876bdd526d04a9287d04d636242
            • MD5 SHA1 SHA512 TLSH

            VCRUNTIME140.dll

            • Path C:\Program Files\OpenVPN\bin\VCRUNTIME140.dll
            • Size 94KB
            • SHA256 c51c64dfb7c445ecf0001f69c27e13299ddcfba0780efa72b866a7487b7491c7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libcrypto-3-x64.dll

            • Path C:\Program Files\OpenVPN\bin\libcrypto-3-x64.dll
            • Size 4.6MB
            • SHA256 71270ed463648bcbe45829cbc0ce3827faf3267e46d530ae0a82d9bc0c619ec0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libpkcs11-helper-1.dll

            • Path C:\Program Files\OpenVPN\bin\libpkcs11-helper-1.dll
            • Size 111KB
            • SHA256 e2500ded6e44090f0c76528903269938a029bee206fde25adac040d6e3a124f7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libssl-3-x64.dll

            • Path C:\Program Files\OpenVPN\bin\libssl-3-x64.dll
            • Size 818KB
            • SHA256 c681893dd0c9f86e7f405792dec32adab33cb899cbd3b2ddda533e28f577ab6d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            openvpn-gui.exe

            • Path C:\Program Files\OpenVPN\bin\openvpn-gui.exe
            • Size 1.1MB
            • SHA256 1f07550f3decbfd7c8737694001ee13c26de84ef498dc493d313a79db2080646
            • MD5 SHA1 SHA512 SSDEEP TLSH

            openvpn-plap-install.reg

            • Path C:\Program Files\OpenVPN\bin\openvpn-plap-install.reg
            • Size 454B
            • SHA256 18b542b3de918da103ea6d79f3be0c5af8349502dc9c673f2db5b6f05dc57d35
            • MD5 SHA1 SHA512 TLSH

            openvpn.exe

            • Path C:\Program Files\OpenVPN\bin\openvpn.exe
            • Size 1019KB
            • SHA256 89479084f420ca55864c957a689971c327209d9c0e7ea4302df947e7cefff8c2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            openvpnserv.exe

            • Path C:\Program Files\OpenVPN\bin\openvpnserv.exe
            • Size 64KB
            • SHA256 4d7ba182e89f2869b650ac80a34b8f347deb360a3872ee9dca130168b32c87fa
            • MD5 SHA1 SHA512 SSDEEP TLSH

            openvpnserv2.exe

            • Path C:\Program Files\OpenVPN\bin\openvpnserv2.exe
            • Size 23KB
            • SHA256 d1e995a2d32e7833a369aa849e8b877162e07c1a161c6dccb95ca2052fc8b1e7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tapctl.exe

            • Path C:\Program Files\OpenVPN\bin\tapctl.exe
            • Size 41KB
            • SHA256 d5aab270d61d7d1709e85ba81525be5948ae5bf397bb7b12a11e11ba0788ecd1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI73A0.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI73A0.tmp
            • Size 209KB
            • SHA256 8351a40a632facd1f79a1bccfe8e32e88876a23065be1144621533700ecb05ad
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSIFEFA.tmp

            • Path C:\Windows\Installer\MSIFEFA.tmp
            • Size 275KB
            • SHA256 fb1cd5e7c3ea30dfafd3cc1862e311388361d896610db28c63716da9d71e8f3f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSIFF78.tmp

            • Path C:\Windows\Installer\MSIFF78.tmp
            • Size 281KB
            • SHA256 45e855461f5d1be28a2f88416603070bd1778055abdd06834ae58e97b7ddf53c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSIFFD6.tmp

            • Path C:\Windows\Installer\MSIFFD6.tmp
            • Size 143KB
            • SHA256 2738720da0b6ce474ca6eb51a92372d047eca2d713c256f0cd6c147ac3a0db21
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e59ed35.msi

            • Path C:\Windows\Installer\e59ed35.msi
            • Size 5.5MB
            • SHA256 19bca902826ef0dc9a6cf849297ce43ba8b2844bdb913c37230308d3274c953c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            dberr.txt

            • Path C:\Windows\System32\CatRoot2\dberr.txt
            • Size 75KB
            • SHA256 55526f93906e178be40c0c78ad6d7da1513011dd23fe3627c2ef43c6c03858f9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            dberr.txt

            • Path C:\Windows\System32\CatRoot2\dberr.txt
            • Size 75KB
            • SHA256 39881d3fd268491499ca347d1ac320e72c937915936a74138ae15aa4fbbbbdb9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            oemvista.inf_amd64_ba3e477187f1080b.ini

            • Path C:\Windows\System32\DriverStore\FileRepository\oemvista.inf_amd64_ba3e477187f1080b.ini
            • Size 421B
            • SHA256 dd5de632694db59dfd35ebe09d7a07928529c1fd6a9f688146473b7b04444b75
            • MD5 SHA1 SHA512 TLSH

            ovpn-dco.inf_amd64_b737bb7e846ccda6.ini

            • Path C:\Windows\System32\DriverStore\FileRepository\ovpn-dco.inf_amd64_b737bb7e846ccda6.ini
            • Size 420B
            • SHA256 49c88f63243f71a3a4e0e176d8834c6a6dc46e6e4ae2d1a1f50691e5f477d7e4
            • MD5 SHA1 SHA512 TLSH

            wintun.inf_amd64_def3401515466414.ini

            • Path C:\Windows\System32\DriverStore\FileRepository\wintun.inf_amd64_def3401515466414.ini
            • Size 415B
            • SHA256 bfaa76d342ed0a503555dac1612f56b0e42aff2be195f684aebf3b13a8c382f2
            • MD5 SHA1 SHA512 TLSH

            tap0901.cat

            • Path C:\Windows\Temp\2D4334~1\tap0901.cat
            • Size 11KB
            • SHA256 ee062e5ef2743ceab10c64830e4cefe52e35cc1ece85947ac4e61ddd1c0b05f7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tap0901.sys

            • Path C:\Windows\Temp\2D4334~1\tap0901.sys
            • Size 40KB
            • SHA256 581dcaace05d5c1ac9512457ff50565aca5d904d2c209bd3fc369ca4d4a0d2b1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            OemVista.inf

            • Path C:\Windows\Temp\2d433454397bd5dede613388c473d0938856beee5822489e9cb1f16bfab50adf\OemVista.inf
            • Size 7KB
            • SHA256 1327ab3a8c50691f04bea8e2ca356c5b604092a719e219464f8cc4b42e192de9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            wintun.cat

            • Path C:\Windows\Temp\FC0E6B~1\wintun.cat
            • Size 9KB
            • SHA256 602187e5470ddbdf9421045bb0515f358c88bf88f59fd8a886fb6373da5d0f82
            • MD5 SHA1 SHA512 SSDEEP TLSH

            wintun.sys

            • Path C:\Windows\Temp\FC0E6B~1\wintun.sys
            • Size 37KB
            • SHA256 eb58bf00df7b4f98334178e75df3348c609ea5c6c74cf7f185f363aa23976c8b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            wintun.inf

            • Path C:\Windows\Temp\fc0e6b860b50f073bf13a7f68ccea1fb42ab73045ee4d2aff48c9c00401ec705\wintun.inf
            • Size 1KB
            • SHA256 44098408ab9611dd99a38e140c7fb1ca5dce6eb2d5f0d5e500547ac1ba5d235b
            • MD5 SHA1 SHA512 TLSH

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 26.1MB
            • SHA256 9ca41581f6ccaf882237417943d1a76077554862bedccad3400fb29336193917
            • MD5 SHA1 SHA512 SSDEEP TLSH

            {8db3f45b-fa38-424c-b243-23a733054192}_OnDiskSnapshotProp

            • Path \??\Volume{6392210f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{8db3f45b-fa38-424c-b243-23a733054192}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 401e05489e5e503653e6200a9407b95c6e7d383c3311857b69b38073e3a04b24
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/6080-390-0x0000000000300000-0x000000000030A000-memory.dmp