Analysis

  • max time kernel
    148s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/10/2026, 17:15

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261014-vsrx9sywct
  • SHA256 664054ff99c56dd2789891acb09df52ccf93aa6ffb18c3b4b5aabc46f8eb0843
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 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:1232
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\1c0b8f78de34b7ca\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:3348
  • 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:4724
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E87DF17CD71F0C64165797BF61CD1FDF C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4564
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFC67.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240778593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3880
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240779484 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:4560
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI62D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240780921 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2592
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:6128
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5D9AE06E67C04F009148C129A3539E48
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5308
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6759564FB493FAD03ABED461C32D5C4C E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5580
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1772
    • C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-xpt7wg-relay.screenconnect.com&p=443&s=7df5a7b9-05ab-4073-92f5-1a42501310e7&k=BgIAAACkAABSU0ExAAgAAAEAAQDFyznKm0ya%2fa1rPQ0M7C5EV2C3O3fODkBFY5o8EwODdoExE2ryg%2fxClWmEGENeO4a1OtkabHGYBL6TsUEhURcvlg85iAo10tqJiZBmGPLXb3EbrwI0mi1unvkBGDMJcFmvfkKHRWNbbXDnJjdEuaUYSX8PW5cVr3I2zUS9iv0UWQhrlmDpm8TjeGKnMBl7Hr8GatnfVD12p0HFggpQ0UYvfb0baShULZDDyMY4%2fdntehXN3f2DMcmwRxAKdahrfbM0ei22wM2roFVsFCKMqSjH%2bSBwLMWXBSajVTAbgO72J2kxbvMKal3uqlaMwwUyoqXxwZv7WzXcYSeXeiDi%2bDay&c=blazs%20poken&c=blazspokenenglish.com&c=engenhSoft&c=1210&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsClient.exe" "RunRole" "f52d4721-cd02-4009-9432-9e7b2e507e96" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3376
      • C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsClient.exe" "RunRole" "8ae2bf8a-62ee-4c89-bd11-e566096dd078" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3080

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a5101.rbs

          • Path C:\Config.Msi\e5a5101.rbs
          • Size 214KB
          • SHA256 a93c1908a6fd70c3952b35b18bbeb4a74c0ed59d90395ae9a8e53a89d166d8ba
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (1c0b8f78de34b7ca)\system.config
          • Size 954B
          • SHA256 fcfd8b34db64464b950a50a51ffc79b47f02402794c2cd51fc2503c4c098e86f
          • MD5 SHA1 SHA512 TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9E.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9E.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIFC67.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC67.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC67.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC67.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC67.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC67.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\1c0b8f78de34b7ca\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 694df6c3dd1256d2e5254617cfa10ab22785d8e25fcda247558e56778127924b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5779.tmp

          • Path C:\Windows\Installer\MSI5779.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          cn2d542z.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c0b8f78de34b7ca)\cn2d542z.newcfg
          • Size 683B
          • SHA256 9bd4fff624d71ca1181c49781ab73905ba860bb8f7834ce59eb449d7e7b8e640
          • MD5 SHA1 SHA512 TLSH

          douurqhx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c0b8f78de34b7ca)\douurqhx.newcfg
          • Size 883B
          • SHA256 7ff255b0068c22989f4354f70392213059b140d9e96f075f5708a32c6c0a2df5
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c0b8f78de34b7ca)\user.config
          • Size 520B
          • SHA256 787af70fbead9d645ec8dcc066045ac5b888f1b86dc621431d6f31a639a92a4a
          • MD5 SHA1 SHA512 TLSH

          memory/1232-12-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/1232-0-0x0000000074D32000-0x0000000074D33000-memory.dmp

          memory/1232-2-0x0000000003C00000-0x0000000003C0C000-memory.dmp

          memory/1232-5-0x0000000003DD0000-0x0000000003DF8000-memory.dmp

          memory/1232-8-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/1232-9-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/1232-4-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/1232-3-0x0000000006170000-0x0000000006206000-memory.dmp

          memory/1232-11-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/1232-7-0x0000000006970000-0x0000000006F2A000-memory.dmp

          memory/1232-6-0x0000000006200000-0x00000000063B0000-memory.dmp

          memory/1232-1-0x0000000003BE0000-0x0000000003BE8000-memory.dmp

          memory/2684-158-0x0000000003A90000-0x0000000003B26000-memory.dmp

          memory/2684-152-0x0000000001430000-0x000000000144A000-memory.dmp

          memory/2684-196-0x0000000003F00000-0x0000000003F6C000-memory.dmp

          memory/2684-175-0x0000000003C90000-0x0000000003CE0000-memory.dmp

          memory/2684-162-0x0000000003CE0000-0x0000000003E90000-memory.dmp

          memory/2684-201-0x0000000004200000-0x00000000042D6000-memory.dmp

          memory/2684-199-0x0000000003E90000-0x0000000003ED1000-memory.dmp

          memory/2684-197-0x0000000004010000-0x00000000040A2000-memory.dmp

          memory/3080-228-0x000000001D140000-0x000000001D30A000-memory.dmp

          memory/3376-224-0x000000001B940000-0x000000001BAF0000-memory.dmp

          memory/3376-219-0x0000000000670000-0x0000000000720000-memory.dmp

          memory/3376-220-0x000000001B310000-0x000000001B37C000-memory.dmp

          memory/3376-221-0x000000001B6F0000-0x000000001B786000-memory.dmp

          memory/3376-225-0x0000000002760000-0x000000000277A000-memory.dmp

          memory/3376-226-0x000000001BC80000-0x000000001BE08000-memory.dmp

          memory/3376-229-0x000000001CBC0000-0x000000001CD8A000-memory.dmp

          memory/3880-41-0x00000000052B0000-0x0000000005346000-memory.dmp

          memory/3880-45-0x0000000005630000-0x00000000057E0000-memory.dmp

          memory/3880-33-0x00000000030F0000-0x000000000311E000-memory.dmp

          memory/3880-37-0x0000000003130000-0x000000000313C000-memory.dmp

          memory/4560-75-0x00000000054D0000-0x00000000054F8000-memory.dmp