Analysis

  • max time kernel
    148s
  • max time network
    127s
  • 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, 19:12

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261102-xwmttsyy2p
  • SHA256 214973e67f4d23f576bc30c4aa30a40d3240543f53cb799db5313da84a4f7180
  • 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:1280
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\6cf8f8e98bfae375\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:5680
  • 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:4324
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B751B957DB3CABDC687FCB3978241074 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3400
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8563.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748015 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5028
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8852.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748640 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:3592
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8F57.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240750562 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4976
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1760
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 82529BE3A5D526581C1B143702259AEB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1548
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3D046B40C219E6BCCC3E4E3EBDE0EC03 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1148
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3736
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:2704
      • C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-lvp06x-relay.screenconnect.com&p=443&s=8117d119-8617-49b8-9fb5-4202c58abccf&k=BgIAAACkAABSU0ExAAgAAAEAAQBduUdOHof%2br1W%2fkTa8HptCBlBKwehqMqhQ2MlddchVGIw6q4UVKEgtZT1Vg2%2bG%2f9sWgZPSKuK6FCRV8NVwMtbPz3T%2ftDY5DF7zOiThbl%2bqd4XQczu2qg0ZLJx6YtkMpmZgSud%2bIOOrwKihe4T%2bOVeJsOA1DTaUKHdXngYSLofdbhNWKeUgGD9D%2bsaSvvtxGdf6lgsN9TMmxeVYacvoFEgSFO9lY0wgn77bpG5wW%2fD%2bLXee2k%2bCvQFG4hqT996tjyY9kZ0sK1O6z7bljnS6QCnYjjY%2b%2f2tnsqCEqgWCvHN1fUmpN2Oz9NaXbmol7kTASZYRgU5XNuvAALIL6GXSOsGq"
        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:5704
        • C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsClient.exe" "RunRole" "ef833f00-c23b-4aad-b693-2d8c9d0ba4b5" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:5488
        • C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsClient.exe" "RunRole" "75ebcb0d-02d4-4a09-b3f0-4512a5fe451f" "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:3800

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e59d51a.rbs

            • Path C:\Config.Msi\e59d51a.rbs
            • Size 214KB
            • SHA256 3482032c5fe0d79806118a7d88df0bd5820d0a02d42348a231e6aa3894662f42
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\Client.en-US.resources
            • Size 65KB
            • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.Client.dll
            • Size 413KB
            • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.Core.dll
            • Size 583KB
            • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsClient.exe
            • Size 689KB
            • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (6cf8f8e98bfae375)\system.config
            • Size 972B
            • SHA256 119b3e48ed6df15eb1352ec735b02701a6b670352df7ddf1b742cbb73eacc4bd
            • MD5 SHA1 SHA512 TLSH

            MSI8563.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8563.tmp
            • Size 1.1MB
            • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8563.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8563.tmp-\ScreenConnect.Core.dll
            • Size 573KB
            • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8563.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8563.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8852.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8852.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\6cf8f8e98bfae375\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 8e132ce4ab78d3ef03a82cdf975fe6844bd3feed45c19a730e7e6eb6bee9fd77
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSIDA88.tmp

            • Path C:\Windows\Installer\MSIDA88.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            h3umjaf5.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6cf8f8e98bfae375)\h3umjaf5.newcfg
            • Size 683B
            • SHA256 4c3365c5e413172d02f1af70d9156ca1b45d0e6490b4806aa97e09c820aeee34
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6cf8f8e98bfae375)\user.config
            • Size 520B
            • SHA256 5bae9d9fd9a2f62727f0d81a83a98d92b1e5516fbb24fb3ef5287aa926e7758d
            • MD5 SHA1 SHA512 TLSH

            vyvzczne.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6cf8f8e98bfae375)\vyvzczne.newcfg
            • Size 882B
            • SHA256 0635399720a08cf015da116eb341082ceacc98e93902843b7da5f552c643a61d
            • MD5 SHA1 SHA512 TLSH

            memory/1280-7-0x0000000006A70000-0x000000000702A000-memory.dmp

            memory/1280-9-0x0000000074180000-0x000000007493C000-memory.dmp

            memory/1280-0-0x0000000074192000-0x0000000074193000-memory.dmp

            memory/1280-10-0x0000000074180000-0x000000007493C000-memory.dmp

            memory/1280-6-0x0000000006300000-0x00000000064B0000-memory.dmp

            memory/1280-5-0x00000000062D0000-0x00000000062F8000-memory.dmp

            memory/1280-4-0x0000000074180000-0x000000007493C000-memory.dmp

            memory/1280-3-0x0000000006240000-0x00000000062D6000-memory.dmp

            memory/1280-2-0x0000000003BA0000-0x0000000003BAC000-memory.dmp

            memory/1280-116-0x0000000074180000-0x000000007493C000-memory.dmp

            memory/1280-1-0x0000000003AF0000-0x0000000003AF8000-memory.dmp

            memory/3592-75-0x0000000005540000-0x0000000005568000-memory.dmp

            memory/3800-229-0x0000000001860000-0x00000000018A1000-memory.dmp

            memory/5028-33-0x0000000004080000-0x00000000040AE000-memory.dmp

            memory/5028-45-0x0000000006460000-0x0000000006610000-memory.dmp

            memory/5028-37-0x00000000040C0000-0x00000000040CC000-memory.dmp

            memory/5028-41-0x0000000006210000-0x00000000062A6000-memory.dmp

            memory/5488-224-0x000000001B930000-0x000000001B9C6000-memory.dmp

            memory/5488-225-0x000000001BEE0000-0x000000001C090000-memory.dmp

            memory/5488-227-0x000000001C220000-0x000000001C3A8000-memory.dmp

            memory/5488-226-0x0000000002E10000-0x0000000002E2A000-memory.dmp

            memory/5488-223-0x000000001B8C0000-0x000000001B92C000-memory.dmp

            memory/5488-222-0x0000000000C30000-0x0000000000CE0000-memory.dmp

            memory/5704-197-0x00000000042A0000-0x000000000430C000-memory.dmp

            memory/5704-171-0x0000000003FD0000-0x0000000004020000-memory.dmp

            memory/5704-153-0x0000000001840000-0x000000000185A000-memory.dmp

            memory/5704-200-0x0000000004020000-0x0000000004061000-memory.dmp

            memory/5704-198-0x00000000043B0000-0x0000000004442000-memory.dmp

            memory/5704-159-0x0000000003E30000-0x0000000003EC6000-memory.dmp

            memory/5704-163-0x0000000004080000-0x0000000004230000-memory.dmp

            memory/5704-202-0x00000000045A0000-0x0000000004676000-memory.dmp