Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 23:39

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260803-3nplcahe52
  • SHA256 4b19cc7b849c54cd154c8842acbc6eee2076d003ab7d7855b9b551992557f9d7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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).

  • 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 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:2608
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\b975a207ee8bbf4f\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:2836
  • 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:3912
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 817C2C71A1D765ED5160BA46AE94653B C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2884
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICAB9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240765828 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1328
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICEE0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240766718 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4492
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC835.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240830531 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2472
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3408
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B74ED9FE637DB62DA91521906CC7B560
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5320
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 377DF73ADC11B8CB314C81D2DD45C30B E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4612
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:3672
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:724
      • C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-d311ne-relay.screenconnect.com&p=443&s=d0d7e143-8594-4c87-a7aa-3cc1e9ced15a&k=BgIAAACkAABSU0ExAAgAAAEAAQDFpEShyCnNB3kGihI28QVi2L%2fbzkpZ28EHw0kLVf%2br%2bCypAGdNkDx7Mz%2b2Z%2fLA%2bGsjBCMkX4If3PZcD6N4tAIWE%2f3D3Hzlr6T63DBGRFe7EtZF3CS5RtRTn77x1CsxSJML4Tm1kdPpdslnXV%2fVeJpw1hx2PoW6ASqtK8EIQqyLn888k6z5P%2fxebkjbDAMP%2fo%2bCGqXeaWnh0ts8uU6k4ppTUEIgAIuQVG7jO8vs6uaC6HuekxgWsx0qNV%2fxFQEWq3F0WaDM27zJZTEQj8kwnOINCE6v1%2fIM9%2fqXcB0MOBIQt7udQr0E6P1j%2bVA4LnGc0L%2fKu%2f5VS1sY4MnqihLhffHM"
        1⤵
        • Sets service image path in registry
        • Drops file in System32 directory
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1324
        • C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsClient.exe" "RunRole" "0991745d-e08a-49a3-a28e-d1a4af4d2bfa" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:5672
        • C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsClient.exe" "RunRole" "aaa18c7f-3687-4220-b1d1-8d8f35b6674f" "System"
          2⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Modifies data under HKEY_USERS
          PID:4528

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e5b0cde.rbs

            • Path C:\Config.Msi\e5b0cde.rbs
            • Size 214KB
            • SHA256 391067bfaca649cae231f0dbc1120ff6b37a18775003f4aec04d78cf072926d3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\Client.en-US.resources
            • Size 64KB
            • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.Core.dll
            • Size 579KB
            • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsClient.exe
            • Size 678KB
            • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (b975a207ee8bbf4f)\system.config
            • Size 978B
            • SHA256 70ab2a287b491ea62bdfcc3257d5676673d8a3e87c8854bad29ffbbe6ab35c2c
            • MD5 SHA1 SHA512 TLSH

            MSICAB9.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSICAB9.tmp
            • Size 1.1MB
            • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSICAB9.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSICAB9.tmp-\ScreenConnect.Core.dll
            • Size 569KB
            • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSICAB9.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSICAB9.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSICEE0.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSICEE0.tmp-\ScreenConnect.WindowsInstaller.dll
            • Size 137KB
            • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientSetup.msi

            • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\b975a207ee8bbf4f\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 e492ca67dddc5edbe8a7f76eb63967ff2f58a397399471a915eb6261a7c52990
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI1357.tmp

            • Path C:\Windows\Installer\MSI1357.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            b1fffvxz.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b975a207ee8bbf4f)\b1fffvxz.newcfg
            • Size 881B
            • SHA256 aa36d59c20fa6a1fbf46cf0f58307128408a44c5046dcf1c856c6cb2b10e8250
            • MD5 SHA1 SHA512 TLSH

            fbozlmq3.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b975a207ee8bbf4f)\fbozlmq3.newcfg
            • Size 881B
            • SHA256 b787f48ad769b82850bd76498587c8519b58821fe8816feebc4a742126df3106
            • MD5 SHA1 SHA512 TLSH

            mon03jxw.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b975a207ee8bbf4f)\mon03jxw.newcfg
            • Size 683B
            • SHA256 74a91b26a63e6bda8a34ea3282a7bd682ff1844aaaa21bca97e64c70f29e6d57
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b975a207ee8bbf4f)\user.config
            • Size 520B
            • SHA256 58f07655921aaec123fc662045ff952d693a5b757f34fa78ac62c1a380962bef
            • MD5 SHA1 SHA512 TLSH

            memory/1324-201-0x0000000004740000-0x00000000047D2000-memory.dmp

            memory/1324-200-0x00000000046D0000-0x000000000473C000-memory.dmp

            memory/1324-158-0x00000000041E0000-0x00000000041FA000-memory.dmp

            memory/1324-205-0x0000000004930000-0x0000000004A06000-memory.dmp

            memory/1324-164-0x00000000042D0000-0x0000000004364000-memory.dmp

            memory/1324-168-0x0000000004520000-0x00000000046D0000-memory.dmp

            memory/1324-203-0x0000000004450000-0x0000000004491000-memory.dmp

            memory/1324-181-0x0000000004400000-0x0000000004450000-memory.dmp

            memory/1328-47-0x0000000005910000-0x0000000005AC0000-memory.dmp

            memory/1328-43-0x00000000056C0000-0x0000000005754000-memory.dmp

            memory/1328-39-0x00000000035B0000-0x00000000035BC000-memory.dmp

            memory/1328-35-0x0000000003570000-0x000000000359E000-memory.dmp

            memory/2608-3-0x0000000006020000-0x00000000060B4000-memory.dmp

            memory/2608-10-0x0000000074430000-0x0000000074BEC000-memory.dmp

            memory/2608-4-0x0000000074430000-0x0000000074BEC000-memory.dmp

            memory/2608-6-0x00000000060B0000-0x0000000006260000-memory.dmp

            memory/2608-0-0x0000000074442000-0x0000000074443000-memory.dmp

            memory/2608-7-0x0000000006820000-0x0000000006DDA000-memory.dmp

            memory/2608-13-0x0000000074430000-0x0000000074BEC000-memory.dmp

            memory/2608-8-0x0000000074430000-0x0000000074BEC000-memory.dmp

            memory/2608-2-0x0000000003A40000-0x0000000003A4C000-memory.dmp

            memory/2608-5-0x0000000005F60000-0x0000000005F88000-memory.dmp

            memory/2608-11-0x0000000074430000-0x0000000074BEC000-memory.dmp

            memory/2608-1-0x0000000003910000-0x0000000003918000-memory.dmp

            memory/4492-77-0x0000000003FE0000-0x0000000004008000-memory.dmp

            memory/5672-224-0x0000000000C40000-0x0000000000CEE000-memory.dmp

            memory/5672-225-0x000000001B900000-0x000000001B96C000-memory.dmp

            memory/5672-226-0x000000001BCE0000-0x000000001BD74000-memory.dmp

            memory/5672-227-0x000000001BF30000-0x000000001C0E0000-memory.dmp

            memory/5672-228-0x0000000002E10000-0x0000000002E2A000-memory.dmp

            memory/5672-229-0x000000001C270000-0x000000001C3F8000-memory.dmp