Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/11/2026, 18:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261107-wtwtaafe89
  • SHA256 dead27d8d5c103cd1166475f9713763bf9ad5cddb76ffc2a17f0211e8be5e128
  • 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 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:2352
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\cff3a36d8b6795c0\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:6036
  • 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:4728
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding D569E9E6A423B4278A8F6F10768011C3 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4900
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB358.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240759843 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2796
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB86A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240761062 10 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:5676
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC03B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240763062 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1724
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3456
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0702E2624BF9FAB07829F30E0B17DC5A
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4312
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 75485A55FDE932834A1CE5754DE87C45 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1912
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2008
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:1460
      • C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jrdbbb-relay.screenconnect.com&p=443&s=32ae264d-121d-499a-8733-f873827a834d&k=BgIAAACkAABSU0ExAAgAAAEAAQDJx1xABZD3J5B%2bH7HD0OTk%2fhMjBs6wxc9SyZQYANr%2bCcgEtHgj%2fYwc8HUtszemolNVjk3GbKayJoEFLMXGQIZXIWM%2bQVHeNRIzc1xTf46RJL8W%2fjZyfYzIAutfKMiLeZQc9o5nfVFG1tH6f12QW4xnkRiXSlrvR4iFUBEOoQCwZBPVVe83L2zEJH2VvJt%2bCGcD2MkB2LlbLUQu3LEPYMEA4gfFdo6nZ2Vx9S2YBLprIqzCsgtNHEZ0BwRFPZmn4kg327PFLYJE58GKbD7HjJovTPkNz5cHPiZSwkuA9Pf9sKe50gNly3lO6QQwocvDVTqPGWB5IBduvpGoZNtRJHbC"
        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:2296
        • C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe" "RunRole" "1c72a229-a4c4-4d92-95cc-0c50cd796169" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:1776
        • C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe" "RunRole" "93f5cc22-322f-4c2b-bf16-6e036f5f5154" "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:5536

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e5a1e48.rbs

            • Path C:\Config.Msi\e5a1e48.rbs
            • Size 214KB
            • SHA256 d7e81cfe2de0a368f8076333413af7fd749ee8b80e2f36881c7e0b9874321197
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\Client.en-US.resources
            • Size 65KB
            • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.Client.dll
            • Size 413KB
            • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.Core.dll
            • Size 583KB
            • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe
            • Size 689KB
            • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\system.config
            • Size 958B
            • SHA256 2058f7c3a82ed99cbe972ad30d7085109c1f8cad7f5ac68cb920c962c8af5806
            • MD5 SHA1 SHA512 TLSH

            MSIB358.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB358.tmp
            • Size 1.1MB
            • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB358.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB358.tmp-\ScreenConnect.Core.dll
            • Size 573KB
            • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB358.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB358.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB86A.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB86A.tmp-\ScreenConnect.WindowsInstaller.dll
            • Size 137KB
            • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientSetup.msi

            • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\cff3a36d8b6795c0\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 084e5e6ae1f0066addcc7491ab0908447ae5d2fd9064f3fb2121b65c54aeb010
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI25CA.tmp

            • Path C:\Windows\Installer\MSI25CA.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            5pdykp2x.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cff3a36d8b6795c0)\5pdykp2x.newcfg
            • Size 683B
            • SHA256 0fc9f242b1329811e8cd29ce07561df511c6216b33743d71725d86a2733fa8fe
            • MD5 SHA1 SHA512 TLSH

            r1yieunc.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cff3a36d8b6795c0)\r1yieunc.newcfg
            • Size 882B
            • SHA256 75936625153a38359b3997c1556dc86560d37e67046aeda296196cc4d0c28645
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cff3a36d8b6795c0)\user.config
            • Size 520B
            • SHA256 97a34169b9e32c60c944e9bb424c02794e30e04bdd2b1d1b75fe176f26fdb9fd
            • MD5 SHA1 SHA512 TLSH

            memory/1776-226-0x000000001C560000-0x000000001C6E8000-memory.dmp

            memory/1776-223-0x000000001BFD0000-0x000000001C066000-memory.dmp

            memory/1776-221-0x0000000000E50000-0x0000000000F00000-memory.dmp

            memory/1776-222-0x00000000030B0000-0x000000000311C000-memory.dmp

            memory/1776-224-0x000000001C220000-0x000000001C3D0000-memory.dmp

            memory/1776-225-0x0000000001770000-0x000000000178A000-memory.dmp

            memory/1776-227-0x0000000003070000-0x00000000030B1000-memory.dmp

            memory/2296-177-0x0000000003EF0000-0x0000000003F40000-memory.dmp

            memory/2296-197-0x0000000004280000-0x0000000004312000-memory.dmp

            memory/2296-154-0x0000000001860000-0x000000000187A000-memory.dmp

            memory/2296-160-0x0000000003D00000-0x0000000003D96000-memory.dmp

            memory/2296-164-0x0000000003F50000-0x0000000004100000-memory.dmp

            memory/2296-201-0x0000000004470000-0x0000000004546000-memory.dmp

            memory/2296-199-0x0000000003EA0000-0x0000000003EE1000-memory.dmp

            memory/2296-196-0x0000000004170000-0x00000000041DC000-memory.dmp

            memory/2352-6-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/2352-1-0x0000000002050000-0x0000000002058000-memory.dmp

            memory/2352-5-0x0000000006020000-0x00000000061D0000-memory.dmp

            memory/2352-11-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/2352-8-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/2352-9-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/2352-3-0x0000000005E90000-0x0000000005F26000-memory.dmp

            memory/2352-2-0x00000000020C0000-0x00000000020CC000-memory.dmp

            memory/2352-0-0x00000000750C2000-0x00000000750C3000-memory.dmp

            memory/2352-4-0x0000000003A10000-0x0000000003A38000-memory.dmp

            memory/2352-7-0x0000000006790000-0x0000000006D4A000-memory.dmp

            memory/2352-13-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/2796-35-0x0000000003570000-0x000000000359E000-memory.dmp

            memory/2796-47-0x0000000005950000-0x0000000005B00000-memory.dmp

            memory/2796-43-0x0000000005700000-0x0000000005796000-memory.dmp

            memory/2796-39-0x00000000035D0000-0x00000000035DC000-memory.dmp

            memory/5536-229-0x0000000002F10000-0x0000000002F51000-memory.dmp

            memory/5676-77-0x0000000004010000-0x0000000004038000-memory.dmp