Analysis

  • max time kernel
    148s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/07/2026, 12:22

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260731-pkep3stses
  • SHA256 952a11ee3d8f6e242361330d626720866c0b6ebdeed03ea4c7cfdecda1a9439f
  • 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.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • 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
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4552
  • 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:1608
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 87873BF243DAEA162BC5912DE09F3044 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3488
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4E07.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733921 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4212
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI525D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734859 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4332
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI57DC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736281 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4288
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5180
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CB561E4EEF6DCA05DA1F90728D632414
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3800
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2D3220101C17AF4FBA1B0FCF93A61528 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5144
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3760
    • C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-m3tkc4-relay.screenconnect.com&p=443&s=47dfb477-46d1-4a29-9903-49199ac8f278&k=BgIAAACkAABSU0ExAAgAAAEAAQBpBDLutDgrn8SKZxhIIEYj2nwJiDj9TEXj6O90QSNjrBY239x%2f04EskHPuA%2fMejPYL0ugqzG4mIWoBJiOI3VB%2fukSqZ9xmNS%2b%2fCLfUMD7RgB9u4NY9QHe7W5yTxY%2bn%2bIvvn1u7vRd8UDmgBjcLdzC2EyISUlpw5SDkxFwj5HbNr8NXz%2b0Di6efbsBUN13dBhYlmPQz0xQEdeE%2fv0h3nKLvuEMrd3aMligQkpiKeTO1tHsOzECc99o6kKyFEr%2f1PeMSwOrIQvd6W2pRO1DY01cbCXmQmG6Jrgo8FRHtXzZYt4VfQ%2fzVlSvWRLNL1XQ7I0NKN%2bnNyMOH7tPYIq8FsiK0"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5680
      • C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsClient.exe" "RunRole" "e81ab872-1518-45f5-82dd-627b1d9cd27a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5024
      • C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsClient.exe" "RunRole" "482e5153-a9a3-4176-940b-475d8cf1d83f" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2936

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59a715.rbs

          • Path C:\Config.Msi\e59a715.rbs
          • Size 214KB
          • SHA256 851aa1ebfef8964a333b9cd13e6bed77997cc5911a62553684164f737d433713
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (acdb6b8df2452d11)\system.config
          • Size 968B
          • SHA256 3498992463df6e4fca41b7af540f0652514f02a088c3a5b602411c93d8751ef3
          • MD5 SHA1 SHA512 TLSH

          MSI4E07.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E07.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E07.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E07.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E07.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E07.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI525D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI525D.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIADFA.tmp

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

          e59a714.msi

          • Path C:\Windows\Installer\e59a714.msi
          • Size 9.8MB
          • SHA256 952a11ee3d8f6e242361330d626720866c0b6ebdeed03ea4c7cfdecda1a9439f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jguln1hu.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (acdb6b8df2452d11)\jguln1hu.newcfg
          • Size 881B
          • SHA256 c842647d098a6389ee64397643f18ebda05249a80dea27fde8c08f94a32feabc
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (acdb6b8df2452d11)\user.config
          • Size 520B
          • SHA256 c8b8a27140ef60c2b670f6698c522c31299588e93b748be5cfb3854877877e4c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (acdb6b8df2452d11)\user.config
          • Size 683B
          • SHA256 df1a6675fbe14a995f862f8f815272645cbedf0583108a8f51af53456a124e97
          • MD5 SHA1 SHA512 TLSH

          {895d23b4-2452-49bd-b9b7-ef43558fa9d6}_OnDiskSnapshotProp

          • Path \??\Volume{c61f8367-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{895d23b4-2452-49bd-b9b7-ef43558fa9d6}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 031f16fd9a3aacfda4753d48684a0944814d79ee35754ed864e3d3929ac21354
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1608-213-0x000001BAAEA40000-0x000001BAAF3E4000-memory.dmp

          memory/2936-212-0x00000000028F0000-0x0000000002931000-memory.dmp

          memory/4212-29-0x0000000006040000-0x00000000060D4000-memory.dmp

          memory/4212-25-0x0000000005F60000-0x0000000005F6C000-memory.dmp

          memory/4212-34-0x0000000006A00000-0x0000000006FBA000-memory.dmp

          memory/4212-21-0x0000000005F70000-0x0000000005F9E000-memory.dmp

          memory/4212-33-0x0000000006290000-0x0000000006440000-memory.dmp

          memory/4332-64-0x0000000005BD0000-0x0000000005BF8000-memory.dmp

          memory/5024-205-0x000000001AE00000-0x000000001AE6C000-memory.dmp

          memory/5024-210-0x000000001B700000-0x000000001B888000-memory.dmp

          memory/5024-209-0x0000000002340000-0x000000000235A000-memory.dmp

          memory/5024-208-0x000000001B3C0000-0x000000001B570000-memory.dmp

          memory/5024-207-0x000000001B170000-0x000000001B204000-memory.dmp

          memory/5024-204-0x0000000000170000-0x000000000021E000-memory.dmp

          memory/5680-179-0x0000000004510000-0x0000000004551000-memory.dmp

          memory/5680-147-0x00000000043A0000-0x0000000004434000-memory.dmp

          memory/5680-151-0x0000000004670000-0x0000000004820000-memory.dmp

          memory/5680-153-0x00000000044C0000-0x0000000004510000-memory.dmp

          memory/5680-177-0x00000000048C0000-0x0000000004952000-memory.dmp

          memory/5680-141-0x0000000001D40000-0x0000000001D5A000-memory.dmp

          memory/5680-170-0x0000000004580000-0x00000000045EC000-memory.dmp

          memory/5680-183-0x0000000004AB0000-0x0000000004B86000-memory.dmp