Analysis

  • max time kernel
    149s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 10:19

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260831-mcph7szdmc
  • SHA256 0d16552c494c249ff1d5a7579c13b2372677c54ba74f0643ad5d9f3c63e5ca6e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 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 9 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 2 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.

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 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:4700
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\cef3852b1a0bf577\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:4572
  • 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:1368
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0AA52CDF115406AA6CD6F2587CE7E584 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5444
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2512.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723359 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3228
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2A05.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724515 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4400
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI310B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726328 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2800
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3540
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 22D4E678246AFAB51AAA595BC21C1EAC
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3376
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 680F1D93897E508C51F1A203E73BA0ED E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2364
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5768
    • C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-xnkv9p-relay.screenconnect.com&p=443&s=60f80510-5a69-4dbb-ba05-efb03db61c01&k=BgIAAACkAABSU0ExAAgAAAEAAQDxH17z%2fby2WehQtIGUT0zB2vBo4w5NemJ5wG8pcIkfllWg0siugTF42F97RDJAH3aCJD0fpVA%2bYdS%2f%2fzpJBwNgwlbrXIzs7NsSjYRxG4QfniLkWnafJDWRuvvMy6UgX2wBuinYbH415%2fgUNYvrdWqVEzkCcl%2fVtcki3D7jcs68RJfn1zN1gjZ7%2fIx3idZrsThs3LpT6cnOhr3UmImjWyT2UGpkvEtAFevFmmE6r3epAv6mqETRPkQQMSV3x3w2n15fF90856V1NLRORLOXr0rHOWJtMXUnDZyyCYM0LbuNjONsYfJmCgt4QxZ4crATMhNnfwb3hF5gMHghYLjo9W%2b5"
      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:4904
      • C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.WindowsClient.exe" "RunRole" "1404b3fa-3608-4996-bea0-37a20f1d6ff7" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4608

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e598321.rbs

          • Path C:\Config.Msi\e598321.rbs
          • Size 214KB
          • SHA256 7cbd28c6ad98d64b88a825069558b3741c463f2452534a27102ebe2e0985b486
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (cef3852b1a0bf577)\system.config
          • Size 960B
          • SHA256 2c64fede9548da92a1ffc36531b6b2e38a65131246cb70f8b0313d47f9391c8b
          • MD5 SHA1 SHA512 TLSH

          MSI2512.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2512.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2512.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2512.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2512.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2512.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A05.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A05.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\cef3852b1a0bf577\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 63d1fdaedab7811cad6eea813eefecd8b4556bea84a3811833312bfef09edcb5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI88A0.tmp

          • Path C:\Windows\Installer\MSI88A0.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          5ujii3uu.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cef3852b1a0bf577)\5ujii3uu.newcfg
          • Size 883B
          • SHA256 1330f5718c758301da241b3691d0f62a382e3dc59cef4606bd1b31f53bc32a0c
          • MD5 SHA1 SHA512 TLSH

          fzwpykyk.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cef3852b1a0bf577)\fzwpykyk.newcfg
          • Size 683B
          • SHA256 c688072680eff28a6f460a23f8ced0ccff1fad8035b49e71fe8c1e5b4580f72e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cef3852b1a0bf577)\user.config
          • Size 520B
          • SHA256 bbebd4cf37aa329fa516fefbdf40b306eb0aca7e0e5858366abe29385e784830
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 8ae6e90f4bd05302c710c17003e5b7c1f38208ade7a78ae7d3bc55a3e183c21c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {d9bf5ab5-0cbc-4d62-96b9-efbc34a3294d}_OnDiskSnapshotProp

          • Path \??\Volume{cba08e50-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{d9bf5ab5-0cbc-4d62-96b9-efbc34a3294d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 1d0b2dd26f0ae95e69df5a0171629c2032e927dda32a11a1449e5da7c597e1c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3228-38-0x0000000005590000-0x000000000559C000-memory.dmp

          memory/3228-34-0x00000000055A0000-0x00000000055CE000-memory.dmp

          memory/3228-46-0x0000000005920000-0x0000000005AD0000-memory.dmp

          memory/3228-42-0x00000000056D0000-0x0000000005764000-memory.dmp

          memory/4400-76-0x00000000033D0000-0x00000000033F8000-memory.dmp

          memory/4608-224-0x000000001B780000-0x000000001B908000-memory.dmp

          memory/4608-223-0x0000000002210000-0x000000000222A000-memory.dmp

          memory/4608-222-0x000000001B440000-0x000000001B5F0000-memory.dmp

          memory/4608-221-0x000000001B1F0000-0x000000001B284000-memory.dmp

          memory/4608-220-0x000000001ADE0000-0x000000001AE4C000-memory.dmp

          memory/4608-219-0x0000000000120000-0x00000000001CE000-memory.dmp

          memory/4700-1-0x0000000001F40000-0x0000000001F48000-memory.dmp

          memory/4700-10-0x0000000074280000-0x0000000074A3C000-memory.dmp

          memory/4700-0-0x0000000074292000-0x0000000074293000-memory.dmp

          memory/4700-6-0x0000000005EB0000-0x0000000006060000-memory.dmp

          memory/4700-12-0x0000000074280000-0x0000000074A3C000-memory.dmp

          memory/4700-5-0x0000000003870000-0x0000000003898000-memory.dmp

          memory/4700-4-0x0000000005E20000-0x0000000005EB4000-memory.dmp

          memory/4700-3-0x0000000074280000-0x0000000074A3C000-memory.dmp

          memory/4700-2-0x0000000001F60000-0x0000000001F6C000-memory.dmp

          memory/4700-8-0x0000000006620000-0x0000000006BDA000-memory.dmp

          memory/4700-7-0x0000000074280000-0x0000000074A3C000-memory.dmp

          memory/4904-195-0x0000000004A30000-0x0000000004A9C000-memory.dmp

          memory/4904-167-0x0000000004970000-0x00000000049C0000-memory.dmp

          memory/4904-196-0x0000000004D70000-0x0000000004E02000-memory.dmp

          memory/4904-163-0x0000000004B20000-0x0000000004CD0000-memory.dmp

          memory/4904-159-0x0000000004870000-0x0000000004904000-memory.dmp

          memory/4904-200-0x0000000004F60000-0x0000000005036000-memory.dmp

          memory/4904-153-0x0000000002120000-0x000000000213A000-memory.dmp

          memory/4904-198-0x0000000004910000-0x0000000004951000-memory.dmp