Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/08/2026, 06:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260818-g3682sysas
  • SHA256 602925ff97afc5533002425e97c4c4a83bb7e0dd3ea768664f24a149b405dd89
  • 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).

  • 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:6028
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\fad0126b84c4e762\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:2408
  • 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:2764
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 42376F4A6BDE54746D617AC4704A32CE C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEA27.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240773812 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEF39.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240775015 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:800
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF64F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240776812 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4768
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:720
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A02230D6145CD9524D9BC41668120C03
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3724
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AF7A36AD25DC813E0D7CBAA2B47507DF E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1248
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2204
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:5516
      • C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-b6jskd-relay.screenconnect.com&p=443&s=fc1e00b5-a8cc-4b64-8e7a-129bf522183c&k=BgIAAACkAABSU0ExAAgAAAEAAQAVKgb3hxV6thwIsEMmZBlQ2hZAxWWMnT7pjFHqkOOfJ3%2bVuOlgfxHOwxpaVn%2bmxOJR%2fLJJ5GoyvhgM3ZW8y6F6RC%2fWBkS0ENslh1i20y5CSDTpl8KylDr77friWhW64Wico6vlWkuYoBjdPBLVS1x%2fmYttSwDLIaJJr7trCZ%2fvlFMhNv9efNxbCZRr4r%2f1sN%2bUR5%2bVyvS9MmSG5TGH4%2fRq2STHFCshgdCFV%2fcUmG7cUnITtTPNdcSAiroueil8M%2fO%2bzRDCtbQi%2flsXPSWQh8xC2S1dBt51Jr%2bI9VM5sK5KMvmqdCWyxl1U%2baYPamvZcNEvTnufclNSJHCV7r0Tgm7w"
        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:2740
        • C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsClient.exe" "RunRole" "ad115876-faf1-47e4-82ee-88516d53f30d" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:5624
        • C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsClient.exe" "RunRole" "dd85dee2-aa06-4170-95a6-b36f5a8b4a82" "System"
          2⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Modifies data under HKEY_USERS
          PID:2476

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e5a5b32.rbs

            • Path C:\Config.Msi\e5a5b32.rbs
            • Size 214KB
            • SHA256 34157e45311da53c389f32270e4a0d16edfd17e70a3b977736b18b0a36672ee6
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\Client.en-US.resources
            • Size 64KB
            • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.Core.dll
            • Size 579KB
            • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsClient.exe
            • Size 678KB
            • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (fad0126b84c4e762)\system.config
            • Size 976B
            • SHA256 bbb1c3f1437c57192dea085ea2b27e7f949aee27c826baaaa3d7b1c392bce12e
            • MD5 SHA1 SHA512 TLSH

            MSIEA27.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSIEA27.tmp
            • Size 1.1MB
            • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIEA27.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIEA27.tmp-\ScreenConnect.Core.dll
            • Size 569KB
            • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIEA27.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIEA27.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSIEF39.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIEF39.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\fad0126b84c4e762\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 68dd6680fcb734488afe8ffbbf65c463d6fc3bc8a90dae7260f51611878f3a61
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI643A.tmp

            • Path C:\Windows\Installer\MSI643A.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            323lx2ze.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fad0126b84c4e762)\323lx2ze.newcfg
            • Size 883B
            • SHA256 e94e47777e07ea699db45ea12f893c274c0beef5de8cba1e0317bea130fb3764
            • MD5 SHA1 SHA512 TLSH

            nxc4qmur.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fad0126b84c4e762)\nxc4qmur.newcfg
            • Size 683B
            • SHA256 4eea61ff07e4bf52f9563e0a503c83026ac2ba68c376157bf39b07607096d5e8
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fad0126b84c4e762)\user.config
            • Size 520B
            • SHA256 d7dcefdf4ee669838032919242e4dfaa3c23d6d853aa4159ff6af8f1dd5aa9c0
            • MD5 SHA1 SHA512 TLSH

            memory/800-77-0x0000000003E40000-0x0000000003E68000-memory.dmp

            memory/2740-177-0x0000000003CB0000-0x0000000003D00000-memory.dmp

            memory/2740-196-0x0000000003F80000-0x0000000003FEC000-memory.dmp

            memory/2740-154-0x0000000001520000-0x000000000153A000-memory.dmp

            memory/2740-201-0x0000000004280000-0x0000000004356000-memory.dmp

            memory/2740-160-0x0000000003B10000-0x0000000003BA4000-memory.dmp

            memory/2740-199-0x0000000003D00000-0x0000000003D41000-memory.dmp

            memory/2740-164-0x0000000003D60000-0x0000000003F10000-memory.dmp

            memory/2740-197-0x0000000004090000-0x0000000004122000-memory.dmp

            memory/4624-39-0x0000000003220000-0x000000000322C000-memory.dmp

            memory/4624-47-0x0000000005630000-0x00000000057E0000-memory.dmp

            memory/4624-43-0x00000000053E0000-0x0000000005474000-memory.dmp

            memory/4624-35-0x0000000003240000-0x000000000326E000-memory.dmp

            memory/5624-219-0x00000000000D0000-0x000000000017E000-memory.dmp

            memory/5624-226-0x00000000023A0000-0x00000000023E1000-memory.dmp

            memory/5624-225-0x000000001B770000-0x000000001B8F8000-memory.dmp

            memory/5624-224-0x00000000022B0000-0x00000000022CA000-memory.dmp

            memory/5624-223-0x000000001B430000-0x000000001B5E0000-memory.dmp

            memory/5624-222-0x000000001B1E0000-0x000000001B274000-memory.dmp

            memory/5624-221-0x0000000002330000-0x000000000239C000-memory.dmp

            memory/6028-5-0x00000000744E0000-0x0000000074C9C000-memory.dmp

            memory/6028-3-0x00000000744E0000-0x0000000074C9C000-memory.dmp

            memory/6028-2-0x0000000005920000-0x000000000592C000-memory.dmp

            memory/6028-0-0x00000000744F2000-0x00000000744F3000-memory.dmp

            memory/6028-1-0x00000000033B0000-0x00000000033B8000-memory.dmp

            memory/6028-4-0x00000000059D0000-0x0000000005A64000-memory.dmp

            memory/6028-7-0x0000000005A90000-0x0000000005C40000-memory.dmp

            memory/6028-12-0x00000000744E0000-0x0000000074C9C000-memory.dmp

            memory/6028-8-0x00000000744E0000-0x0000000074C9C000-memory.dmp

            memory/6028-11-0x00000000744E0000-0x0000000074C9C000-memory.dmp

            memory/6028-6-0x0000000005A60000-0x0000000005A88000-memory.dmp

            memory/6028-9-0x0000000006200000-0x00000000067BA000-memory.dmp