Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 18:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260804-wxbmhsvsd1
  • SHA256 fdb6b497b2a941c8cb1de3539a766e812d9676288a6668f90b140794cd4425e0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

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

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 15 IoCs
  • 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.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 11 IoCs
  • Suspicious use of SendNotifyMessage 9 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 10 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\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:6136
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\35e6c255fc70e6b5\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:4480
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • 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:1744
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0D02116816DDB3F41C83DD0BFE97DA8D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI551.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240780890 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2736
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9C6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240781796 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3172
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1178.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240783843 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5704
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5344
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 63CAEB8A351FB1511736E0A7F3F0F7B4
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1664
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding ACCD34777F2654A95DDA7FB999BE9F5D E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4608
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4252
    • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-fysxmg-relay.screenconnect.com&p=443&s=d2047317-d13f-4776-98e9-c7fe167842b3&k=BgIAAACkAABSU0ExAAgAAAEAAQBJ5EzMYEr%2fwCk6aKuRr%2bKaG9lfZ4WXrNDtv55MDzprRTLTfzTpVc3mWSC1QXfhIdWNRVgKUm%2fFSyuomHpvzwzCjaMt6ehoLsLJIaNnyo6L8rApjCAu87PeMHq5IUBOWte3ZaYtvgbp3mzNCp3TyfaNWVBHBc9ty24d26PQt709nVlfxW8SeJyIzST%2fZ2%2fQzqPSUA9mE0u2zdnc9wmCzlyVfJimR6WDIc9boA7GQDt0pyp9ovTJKFBslvO1EFYq4MdmEv%2fBbxlhwwFR%2bECzXD%2fT9sVoQn03gFeXWZBLnd7FMg2ZjiKmHdKNCbAxWb99jXtmuMgdrD0nqA3XVGWX9bTD"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5848
      • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe" "RunRole" "407895b3-38f6-43a3-bc2c-6cf5b145471e" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4724
      • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe" "RunRole" "f56a0ccf-ff74-4d35-92e9-a3a5471b7d41" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2140

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a733e.rbs

          • Path C:\Config.Msi\e5a733e.rbs
          • Size 214KB
          • SHA256 3795ec07fde3dc0b96e7fa5a922606f659f465a784b6ce51c0ad7768e7d07570
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\system.config
          • Size 960B
          • SHA256 113211775b09c367cc91cfa82021358401f128edbb3599ccb9a17f4d66fe95e8
          • MD5 SHA1 SHA512 TLSH

          MSI551.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI551.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI551.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI551.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI551.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI551.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9C6.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9C6.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\35e6c255fc70e6b5\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 51c196c397a5c4cf1e8002a986069935cb6cf2a01a0d0fe039ccc7bb9dd21f3d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7C27.tmp

          • Path C:\Windows\Installer\MSI7C27.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          n3shbeix.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\n3shbeix.newcfg
          • Size 878B
          • SHA256 c6bfdaa114dd6d9fd9f5a232e6737b59ba1137fa2629ff21661e611b1089953c
          • MD5 SHA1 SHA512 TLSH

          qggyukvj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\qggyukvj.newcfg
          • Size 683B
          • SHA256 9ef4fbc809dbad133861d6f65b2c04831b134ef11a5c817b99ccae61e3ba1d64
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\user.config
          • Size 520B
          • SHA256 5c1580e7e4e230f32e8a95cddc53cce59b3fc952b80049fd19b4d93b82444676
          • MD5 SHA1 SHA512 TLSH

          zu1jixp5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\zu1jixp5.newcfg
          • Size 878B
          • SHA256 8c258c34e9b1c082fb5bc3e452736c77b1e0ecf92a7ad59936ea4e5c894c82f3
          • MD5 SHA1 SHA512 TLSH

          zxwcwzyd.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\zxwcwzyd.newcfg
          • Size 878B
          • SHA256 07efa9cc3fb9d8eca74d273effb6ee71dadcb66c13e5f327914795e7d7fe8339
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 58b021bcc21d92948b8c9e862745eba5a8cb1c0270b8685696ee30bea52b53c5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {74a4aeb3-07c8-4433-b3bb-53b2efaed3b1}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{74a4aeb3-07c8-4433-b3bb-53b2efaed3b1}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 8af02695b67507926c03c25d4f34faca10da292c820abc97eb214c150ff9975d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2736-41-0x0000000005DB0000-0x0000000005E44000-memory.dmp

          memory/2736-37-0x0000000005D00000-0x0000000005D0C000-memory.dmp

          memory/2736-33-0x0000000005CD0000-0x0000000005CFE000-memory.dmp

          memory/2736-45-0x0000000006000000-0x00000000061B0000-memory.dmp

          memory/3172-75-0x0000000005290000-0x00000000052B8000-memory.dmp

          memory/4724-225-0x000000001C070000-0x000000001C1F8000-memory.dmp

          memory/4724-219-0x0000000000A40000-0x0000000000AEE000-memory.dmp

          memory/4724-222-0x0000000002F30000-0x0000000002FC4000-memory.dmp

          memory/4724-221-0x0000000002DA0000-0x0000000002E0C000-memory.dmp

          memory/4724-223-0x000000001BD30000-0x000000001BEE0000-memory.dmp

          memory/4724-224-0x0000000001460000-0x000000000147A000-memory.dmp

          memory/5848-177-0x0000000004DC0000-0x0000000004E10000-memory.dmp

          memory/5848-164-0x0000000004C10000-0x0000000004DC0000-memory.dmp

          memory/5848-197-0x0000000004F90000-0x0000000005022000-memory.dmp

          memory/5848-199-0x0000000004E10000-0x0000000004E51000-memory.dmp

          memory/5848-196-0x0000000004E80000-0x0000000004EEC000-memory.dmp

          memory/5848-201-0x0000000005180000-0x0000000005256000-memory.dmp

          memory/5848-154-0x00000000048D0000-0x00000000048EA000-memory.dmp

          memory/5848-160-0x00000000049C0000-0x0000000004A54000-memory.dmp

          memory/6136-2-0x00000000032B0000-0x00000000032BC000-memory.dmp

          memory/6136-12-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/6136-5-0x0000000003350000-0x0000000003378000-memory.dmp

          memory/6136-4-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/6136-7-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/6136-8-0x0000000006240000-0x00000000067FA000-memory.dmp

          memory/6136-0-0x0000000074482000-0x0000000074483000-memory.dmp

          memory/6136-3-0x0000000005920000-0x00000000059B4000-memory.dmp

          memory/6136-6-0x0000000005AD0000-0x0000000005C80000-memory.dmp

          memory/6136-1-0x0000000003290000-0x0000000003298000-memory.dmp

          memory/6136-11-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/6136-9-0x0000000074470000-0x0000000074C2C000-memory.dmp