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
    02/11/2026, 00:09

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.5MB
  • Sample261102-afwepsfz9p
  • SHA256 8959dc68e99f6af1d7fef50d1374d1ffde25d21d9946c51549023fd8de89c696
  • 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 17 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:5044
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\c19ce7993f5c4b94\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:4764
  • 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:1092
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B1D7D6F06F6E4867D5DAF628DB70E2D6 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI65D4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739937 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5756
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6B92.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741406 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:480
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7373.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240743328 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5168
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3036
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3F2A5BB1D3141A94CA7421BF84034C41
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4476
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 29ABBAC1D83E9C3A9F9FAEB71CE8CAEF E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5868
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2820
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:2484
      • C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ylaa2c-relay.screenconnect.com&p=443&s=3ac1b50a-12e4-4283-8dca-78e1699f8261&k=BgIAAACkAABSU0ExAAgAAAEAAQDNspGAu0hnU0h01da4dHmonN174DlHQMvex0Sf1esAKcKvVnDFnrF0i1H%2baY%2fU8MBAqlgJ4Di85eJ5sTwqfD3G4YQlVqZrOWN7IhXO7t9c6a62NCcto0Zln9RLQ73WPuBEtr0n7Lbmq8fHSck%2bdIVXEWcWWpWV1wvZpIqOfNw%2bEqrIe5FfUcJmdE9SEjm6IfCV%2f0ZjmS02Vm30Iers0fJcaVc7HjE1c%2f0cREwEt1iAqognPbNnKFK1kMOl58trVuXomOyyhNaeIWqGx37p51z1O9vHSDA6UrTbSdgawL3GdaEGTZCwg3z27X%2b%2f7Y69G497THUBFoyjpiQHHN5Kao7J&c=&c=&c=zzzzzNT&c=&c=&c=&c=&c=%2f"
        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:5008
        • C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsClient.exe" "RunRole" "7da1f523-a81b-47e9-b9b1-683f23494e30" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:2724
        • C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsClient.exe" "RunRole" "74a5b289-ddff-4b53-840f-a24ec970e075" "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:2432

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e59c069.rbs

            • Path C:\Config.Msi\e59c069.rbs
            • Size 214KB
            • SHA256 1516d5e9ec15fe78746d648938740dcdaef55268795d6e55e173858e1c7a27f6
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\Client.en-US.resources
            • Size 65KB
            • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.fr-FR.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\Client.fr-FR.resources
            • Size 55KB
            • SHA256 db771509ade80cbea5b78cf3b6d99ac87dc70e2c116405ae8c4ed08ae1748e50
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.Client.dll
            • Size 413KB
            • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.Core.dll
            • Size 583KB
            • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsClient.exe
            • Size 689KB
            • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (c19ce7993f5c4b94)\system.config
            • Size 960B
            • SHA256 ab87a87a845856392f987cb54394fdf1e1cdb70a820a9050da3d7da31245b780
            • MD5 SHA1 SHA512 TLSH

            MSI65D4.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI65D4.tmp
            • Size 1.1MB
            • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI65D4.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI65D4.tmp-\ScreenConnect.Core.dll
            • Size 573KB
            • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI65D4.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI65D4.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6B92.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6B92.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\c19ce7993f5c4b94\ScreenConnect.ClientSetup.msi
            • Size 12.0MB
            • SHA256 52fbc76c5c8838d2a9ff202f40b3bf1757825f3d8a7e43f27ef05215f776e821
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSIC683.tmp

            • Path C:\Windows\Installer\MSIC683.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            4w3k5hu3.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c19ce7993f5c4b94)\4w3k5hu3.newcfg
            • Size 683B
            • SHA256 ce553256c28fbf76e8cfc79a7952874a2e01f7b175740dc032fce9c5e9d20ff1
            • MD5 SHA1 SHA512 TLSH

            eygxln3y.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c19ce7993f5c4b94)\eygxln3y.newcfg
            • Size 880B
            • SHA256 3ad10ec8fa0a07229408fd8963c7e6c8a3b46ea483b54873e0f9e70611e895ad
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c19ce7993f5c4b94)\user.config
            • Size 520B
            • SHA256 2741479b5872c3a4eae7eaf29f9684448a2d5bff729d366d075d67657710831d
            • MD5 SHA1 SHA512 TLSH

            memory/480-76-0x0000000005F10000-0x0000000005F38000-memory.dmp

            memory/1092-232-0x0000020474DD0000-0x0000020475774000-memory.dmp

            memory/2432-231-0x000000001B2B0000-0x000000001B2F1000-memory.dmp

            memory/2724-224-0x0000000000DB0000-0x0000000000E60000-memory.dmp

            memory/2724-225-0x0000000003020000-0x000000000308C000-memory.dmp

            memory/2724-226-0x000000001BC30000-0x000000001BCC6000-memory.dmp

            memory/2724-227-0x000000001C090000-0x000000001C240000-memory.dmp

            memory/2724-228-0x0000000002F80000-0x0000000002F9A000-memory.dmp

            memory/2724-229-0x000000001C3D0000-0x000000001C558000-memory.dmp

            memory/5008-154-0x00000000019A0000-0x00000000019BA000-memory.dmp

            memory/5008-199-0x00000000045B0000-0x0000000004642000-memory.dmp

            memory/5008-164-0x00000000042A0000-0x0000000004450000-memory.dmp

            memory/5008-198-0x00000000044A0000-0x000000000450C000-memory.dmp

            memory/5008-160-0x0000000004050000-0x00000000040E6000-memory.dmp

            memory/5008-201-0x0000000004250000-0x0000000004291000-memory.dmp

            memory/5008-177-0x0000000004450000-0x00000000044A0000-memory.dmp

            memory/5008-203-0x00000000047A0000-0x0000000004876000-memory.dmp

            memory/5044-8-0x00000000744F0000-0x0000000074CAC000-memory.dmp

            memory/5044-5-0x0000000006160000-0x0000000006310000-memory.dmp

            memory/5044-1-0x00000000038F0000-0x00000000038F8000-memory.dmp

            memory/5044-2-0x0000000003910000-0x000000000391C000-memory.dmp

            memory/5044-3-0x00000000060D0000-0x0000000006166000-memory.dmp

            memory/5044-12-0x00000000744F0000-0x0000000074CAC000-memory.dmp

            memory/5044-10-0x00000000744F0000-0x0000000074CAC000-memory.dmp

            memory/5044-7-0x00000000068D0000-0x0000000006E8A000-memory.dmp

            memory/5044-0-0x0000000074502000-0x0000000074503000-memory.dmp

            memory/5044-6-0x00000000744F0000-0x0000000074CAC000-memory.dmp

            memory/5044-4-0x00000000039B0000-0x00000000039D8000-memory.dmp

            memory/5756-46-0x0000000005A10000-0x0000000005BC0000-memory.dmp

            memory/5756-34-0x0000000005680000-0x00000000056AE000-memory.dmp

            memory/5756-38-0x0000000003660000-0x000000000366C000-memory.dmp

            memory/5756-42-0x00000000057C0000-0x0000000005856000-memory.dmp