Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 06:38

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261023-hee1bsas21
  • SHA256 94a4861b20728579db75c1bda617407e1fc8c3571eb279f8036eed2f4065a329
  • 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 12 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 10 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:1548
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\3ed2223b4939ad36\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:4484
  • 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:956
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3034E6330657D599AFF4F6D736057A78 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF35F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240776218 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3536
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF96B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240777609 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:5968
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240779546 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5680
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4884
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 485886E83694D726A926014A111B0A28
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4904
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 33F20ADC7314E86080764E0EF3077D8E E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5944
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1220
    • C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jtzukz-relay.screenconnect.com&p=443&s=42e97719-3ec0-4bed-be95-dd9f43b97d4e&k=BgIAAACkAABSU0ExAAgAAAEAAQCtGGVj1zF32KaQ%2ba7RKxtFSlcsFXnsyX%2f16wGjl44ZMfjrHn1KaYTYumel604F4soWki6Ty8%2f2nOk51yVzrengyR3%2fcOdOfi3QT1ITl4A33y4jSbL48ypSBZcBbidVBChOpuiyD7rJgoJthuMjxgbA65f6O2GUK%2fIQRFqIwkvmaZdZ6OIeoA0IZ%2bTrUnE3FXJHG3AQNIT9gRaeXGabYlj5pRUGe62gErMKSipusjyvh1BUdV1vZ22GhyliwRzAXWOE3R%2b%2bfT3kYytGDA8qwpm71YLQJpP3ODLRe%2b01zLb%2fwDEw7vW95gtvBZy2gFEb2tdq5yuCifBd7xLanrFqmAi6&c=NEWTD&c=&c=&c=TD&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:2484
      • C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe" "RunRole" "37aafee2-0a4a-4651-8f36-0a3deb3b6f5b" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3332
      • C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe" "RunRole" "8cd76825-8eda-44d1-a8a2-e1d00a863d49" "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:3104

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a52d5.rbs

          • Path C:\Config.Msi\e5a52d5.rbs
          • Size 214KB
          • SHA256 6979ab67932b7f55aea9e1c649581b141aef4722f51c6a4895674f8f2aea6a78
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\system.config
          • Size 964B
          • SHA256 cc47cb037669a9eb9ab88b7184f79f65d1ed3e562e5b8856676c4437b64b9c44
          • MD5 SHA1 SHA512 TLSH

          MSIF35F.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF35F.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF35F.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF35F.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF35F.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF35F.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF96B.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF96B.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\3ed2223b4939ad36\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 54fb0ed741655ff3627c459d8f18acc220005b2f75fef43941ceb60de606dc6a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI59BB.tmp

          • Path C:\Windows\Installer\MSI59BB.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          1ta0nlce.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\1ta0nlce.newcfg
          • Size 883B
          • SHA256 74b69c1f0512c7ed2548decc60dec20f99a155c541a60a594a9dd8daaa9ad6de
          • MD5 SHA1 SHA512 TLSH

          fuenpfdn.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\fuenpfdn.newcfg
          • Size 883B
          • SHA256 dfbecc3a1e99831498e6ab684b8c7a305909924b901fcf57c71cea120b83cfd2
          • MD5 SHA1 SHA512 TLSH

          qhatxfze.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\qhatxfze.newcfg
          • Size 683B
          • SHA256 f343d3a596a1b7dec365163d58e8314fa568012cfd824197a9f80d58aaa8bc8b
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\user.config
          • Size 520B
          • SHA256 748a5c7061f59bb74b99874dc53a9d56850e5faaa71e84a1909faebbb12cb323
          • MD5 SHA1 SHA512 TLSH

          memory/1548-4-0x0000000074C80000-0x000000007543C000-memory.dmp

          memory/1548-11-0x0000000074C80000-0x000000007543C000-memory.dmp

          memory/1548-2-0x0000000003490000-0x000000000349C000-memory.dmp

          memory/1548-8-0x0000000074C80000-0x000000007543C000-memory.dmp

          memory/1548-6-0x0000000005B60000-0x0000000005D10000-memory.dmp

          memory/1548-9-0x00000000062D0000-0x000000000688A000-memory.dmp

          memory/1548-0-0x0000000074C92000-0x0000000074C93000-memory.dmp

          memory/1548-13-0x0000000074C80000-0x000000007543C000-memory.dmp

          memory/1548-5-0x0000000005AC0000-0x0000000005AE8000-memory.dmp

          memory/1548-3-0x0000000005A30000-0x0000000005AC6000-memory.dmp

          memory/1548-1-0x0000000003470000-0x0000000003478000-memory.dmp

          memory/1548-7-0x0000000074C80000-0x000000007543C000-memory.dmp

          memory/2484-164-0x0000000003B00000-0x0000000003B50000-memory.dmp

          memory/2484-187-0x0000000003BE0000-0x0000000003C4C000-memory.dmp

          memory/2484-195-0x0000000003ED0000-0x0000000003F62000-memory.dmp

          memory/2484-197-0x0000000003AB0000-0x0000000003AF1000-memory.dmp

          memory/2484-162-0x0000000003D20000-0x0000000003ED0000-memory.dmp

          memory/2484-158-0x0000000003A10000-0x0000000003AA6000-memory.dmp

          memory/2484-199-0x00000000040C0000-0x0000000004196000-memory.dmp

          memory/2484-152-0x00000000012A0000-0x00000000012BA000-memory.dmp

          memory/3332-220-0x00000000031F0000-0x000000000325C000-memory.dmp

          memory/3332-219-0x0000000000EC0000-0x0000000000F70000-memory.dmp

          memory/3332-221-0x000000001BF50000-0x000000001BFE6000-memory.dmp

          memory/3332-222-0x000000001C1A0000-0x000000001C350000-memory.dmp

          memory/3332-223-0x0000000003090000-0x00000000030AA000-memory.dmp

          memory/3332-224-0x000000001C4E0000-0x000000001C668000-memory.dmp

          memory/3536-45-0x0000000005790000-0x0000000005940000-memory.dmp

          memory/3536-41-0x0000000005540000-0x00000000055D6000-memory.dmp

          memory/3536-37-0x0000000005470000-0x000000000547C000-memory.dmp

          memory/3536-33-0x0000000005440000-0x000000000546E000-memory.dmp

          memory/5968-75-0x00000000052E0000-0x0000000005308000-memory.dmp