Analysis

  • max time kernel
    148s
  • max time network
    119s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/08/2026, 06:24

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260826-g6f62aca49
  • SHA256 d446ac8c9be0ff4d28cfaa07a573fa67bcf3b9fe2620d0a76b27c9008938ed79
  • 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:3888
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\2d986edf962f1713\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:5644
  • 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:2592
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 404597D7ACD54A3973E2121AB41F67F9 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3136
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5C30.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240737468 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:260
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5EC1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738031 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4628
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI648E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739531 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5880
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5060
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3C3412E0E9639FDCA909372E38FC89C0
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2400
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding ACA078AE340B93C67E3E8D5E28BC4B80 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3676
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5904
    • C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-q844ui-relay.screenconnect.com&p=443&s=ebaaef79-735e-4ae2-8a0b-b9298fe8212a&k=BgIAAACkAABSU0ExAAgAAAEAAQC1o0wuHzt6yvV%2bkSiJNpW8NPMpiQUyQ%2fKbgEkC6C%2fsFxo4bbPFwIeqvm%2bZyUrG3ImUdhV3Dsxr0hnAFsDgpZPRTbWYs%2blupaz2hjvrZF7JIoOX%2fVKtbkKhlaFtNGZC8wl5NPmzHlfpIPnSjpuqCnnobgWJZ1JfR6tZki1%2bJ%2b%2be05U0aOodfkGS2%2b79k2ajO6uaytuGGG2AQNf4bZPzY9qnjBKVDN2tjHNjby198fYiK2CmfIp8AHAP1i%2fCgOzVtD98OhMHtXQXZ62FhlooOzFWY1Pn5%2bVZTMsRCpvIXOflGShNjCe271xfF0Du3OfVlwjOMnThmdtdCT0XXz9HjyCj"
      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:3496
      • C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsClient.exe" "RunRole" "a39c93c5-2ca5-4ac8-aaf1-23cac3ad0613" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5676
      • C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsClient.exe" "RunRole" "c0e82c65-745d-4fdf-99af-31e8f853ea96" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4944

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59bd5c.rbs

          • Path C:\Config.Msi\e59bd5c.rbs
          • Size 214KB
          • SHA256 6074e4db92b0ad845f1bbd28ab8e828b64aeffb8ee960e1699af4d6f6e119948
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2d986edf962f1713)\system.config
          • Size 968B
          • SHA256 308ad7ed2e617e895c2c386848ad2ade22a59048d09602161eaeca7be3969377
          • MD5 SHA1 SHA512 TLSH

          MSI5C30.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5C30.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5C30.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5C30.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5C30.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5C30.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5EC1.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5EC1.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\2d986edf962f1713\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 3127a05d452ecd2179c31540df11cc23a794455b734a41ba2b475c327f4d2e91
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC50C.tmp

          • Path C:\Windows\Installer\MSIC50C.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          udzmhkt1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2d986edf962f1713)\udzmhkt1.newcfg
          • Size 883B
          • SHA256 a5356e1f4f9538e474a9bd94616ce18ad9b8afaf318314c887cf613151e5643a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2d986edf962f1713)\user.config
          • Size 683B
          • SHA256 c158f17f57317b0b90ab42d83e0418f370d5d90a62e26f8c1b0fc74cf14395ef
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2d986edf962f1713)\user.config
          • Size 520B
          • SHA256 b89cc449eb6faa7736238d9f121ca80e8989bd768741f916d9a09b7033948508
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 49d7dd7e1a8e14bc451f01358203cc0b11f4be90338a47a2bcd153040318d691
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {0b5715fd-32ff-432f-8019-b6d98ee1d9ea}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{0b5715fd-32ff-432f-8019-b6d98ee1d9ea}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 5446f6fd0ac485237ed9769110e185da1bb3c7781877334fc4a1e728ebda9db1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/260-34-0x0000000005190000-0x00000000051BE000-memory.dmp

          memory/260-46-0x00000000054B0000-0x0000000005660000-memory.dmp

          memory/260-38-0x0000000005170000-0x000000000517C000-memory.dmp

          memory/260-42-0x0000000005260000-0x00000000052F4000-memory.dmp

          memory/3496-195-0x0000000003BF0000-0x0000000003C5C000-memory.dmp

          memory/3496-155-0x00000000013F0000-0x000000000140A000-memory.dmp

          memory/3496-161-0x0000000003A60000-0x0000000003AF4000-memory.dmp

          memory/3496-165-0x0000000003D50000-0x0000000003F00000-memory.dmp

          memory/3496-200-0x00000000040F0000-0x00000000041C6000-memory.dmp

          memory/3496-178-0x0000000003BA0000-0x0000000003BF0000-memory.dmp

          memory/3496-198-0x0000000003B40000-0x0000000003B81000-memory.dmp

          memory/3496-196-0x0000000003F00000-0x0000000003F92000-memory.dmp

          memory/3888-8-0x00000000065D0000-0x0000000006B8A000-memory.dmp

          memory/3888-3-0x0000000005D80000-0x0000000005E14000-memory.dmp

          memory/3888-10-0x00000000745B0000-0x0000000074D6C000-memory.dmp

          memory/3888-1-0x0000000003890000-0x0000000003898000-memory.dmp

          memory/3888-11-0x00000000745B0000-0x0000000074D6C000-memory.dmp

          memory/3888-6-0x0000000005E50000-0x0000000006000000-memory.dmp

          memory/3888-0-0x00000000745C2000-0x00000000745C3000-memory.dmp

          memory/3888-5-0x0000000005E20000-0x0000000005E48000-memory.dmp

          memory/3888-4-0x00000000745B0000-0x0000000074D6C000-memory.dmp

          memory/3888-7-0x00000000745B0000-0x0000000074D6C000-memory.dmp

          memory/3888-2-0x00000000038B0000-0x00000000038BC000-memory.dmp

          memory/4628-76-0x0000000006070000-0x0000000006098000-memory.dmp

          memory/5676-219-0x0000000000B10000-0x0000000000BBE000-memory.dmp

          memory/5676-220-0x0000000002F40000-0x0000000002FAC000-memory.dmp

          memory/5676-221-0x000000001B9A0000-0x000000001BA34000-memory.dmp

          memory/5676-222-0x000000001BE10000-0x000000001BFC0000-memory.dmp

          memory/5676-223-0x0000000002DE0000-0x0000000002DFA000-memory.dmp

          memory/5676-224-0x000000001C150000-0x000000001C2D8000-memory.dmp

          memory/5676-225-0x0000000002FB0000-0x0000000002FF1000-memory.dmp