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
    06/08/2026, 12:22

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260806-pj4ykshf54
  • SHA256 1dd93f65b4e77120375cff97ea2595ca9ffe918ed07242c8102874a12e8e0ef0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 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:3704
  • 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:2060
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5A2054962C867CF11FA50D1C604C09E6 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4620
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8B10.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240749593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1904
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI90DD.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240750843 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1676
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8BA9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240815125 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5164
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2368
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DC7DC70A181B56FE9B82D6D391ADA81E
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3960
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 658848E25D21DE65810A69960051A02A E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5540
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5884
    • C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-mexmw1-relay.screenconnect.com&p=443&s=b1463bb6-6de8-4d98-bc7e-a9685f390631&k=BgIAAACkAABSU0ExAAgAAAEAAQA9Dm6k36RtiOo8v0KCuCYVducwoHg8h2Do5nwnZ4y9cvlDxxr4C2ct0rcli8f78cAboezMVgXmwJzszwBSfvkrxLBQZ7CSgY73%2bp4oFNOu9tNcPjan%2bTvBs%2f%2f%2fJ3iHOqHLvCuQFVPUApK8KWTzrJ4iC3PVcEy48MyNmjxhevuRQAdtE7GnaQ0VsZDx%2bM8%2bgGM0zsSQORE1tYs831Q82G%2fqPtXwXGsm62BKJbHBUOOIZw7BGqWoj8585XqQZRF%2fnblWPvs7TAF6SfqqiXXVBZWzk9NmuDp%2fhSj00MozL0EP5cA%2f2mhGYCjPsosmkBbYHE44YDWcOm4XatzeyWgOpR%2bu"
      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:2792
      • C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsClient.exe" "RunRole" "f6e8b519-8ae0-4c27-bb2f-313c353b8c10" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5800
      • C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsClient.exe" "RunRole" "90e5e7dc-ee46-49f8-913f-90687161dfa5" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:200

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5ad94b.rbs

          • Path C:\Config.Msi\e5ad94b.rbs
          • Size 214KB
          • SHA256 7f0383bc794a4163518184992dee0c8ad93807e6f189236ecf6688f7492e2d6a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (900b3126761a9673)\system.config
          • Size 968B
          • SHA256 f9f60a7cef6726738e97303193bf9b4a1d2035e6eec8244aaa3e262b6100de0e
          • MD5 SHA1 SHA512 TLSH

          MSI8B10.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8B10.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8B10.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8B10.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8B10.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8B10.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI90DD.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI90DD.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIE189.tmp

          • Path C:\Windows\Installer\MSIE189.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5ad94a.msi

          • Path C:\Windows\Installer\e5ad94a.msi
          • Size 9.8MB
          • SHA256 1dd93f65b4e77120375cff97ea2595ca9ffe918ed07242c8102874a12e8e0ef0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ccfpxsq2.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (900b3126761a9673)\ccfpxsq2.newcfg
          • Size 683B
          • SHA256 7bddb24f69356038a3d330826f3c1b492b025e33c2308b0c7f1cfe7f19f36f43
          • MD5 SHA1 SHA512 TLSH

          m41vfjmv.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (900b3126761a9673)\m41vfjmv.newcfg
          • Size 883B
          • SHA256 714253717d6988822a62cf70f52eb3ac40976e94d72e6c587fef5583b7dd78aa
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (900b3126761a9673)\user.config
          • Size 520B
          • SHA256 7b481bb5f55894591af2befc682fe6d1d8a84d944ed185f1ef4fd3a6ff794eae
          • MD5 SHA1 SHA512 TLSH

          {f1c66390-bf0a-4cea-9f3b-f77278409b33}_OnDiskSnapshotProp

          • Path \??\Volume{c61f8367-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{f1c66390-bf0a-4cea-9f3b-f77278409b33}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 67b9dc36949b2053f5815300342875bda427f3a1bb2b46bbb845d79e95ebad28
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/200-215-0x0000000001300000-0x0000000001341000-memory.dmp

          memory/1676-62-0x00000000059B0000-0x00000000059D8000-memory.dmp

          memory/1904-32-0x0000000005DA0000-0x000000000635A000-memory.dmp

          memory/1904-19-0x0000000003200000-0x000000000322E000-memory.dmp

          memory/1904-23-0x0000000003230000-0x000000000323C000-memory.dmp

          memory/1904-27-0x0000000003360000-0x00000000033F4000-memory.dmp

          memory/1904-31-0x0000000005630000-0x00000000057E0000-memory.dmp

          memory/2792-152-0x0000000003EB0000-0x0000000004060000-memory.dmp

          memory/2792-165-0x0000000003E60000-0x0000000003EB0000-memory.dmp

          memory/2792-142-0x0000000003B70000-0x0000000003B8A000-memory.dmp

          memory/2792-189-0x00000000043D0000-0x00000000044A6000-memory.dmp

          memory/2792-184-0x00000000040D0000-0x000000000413C000-memory.dmp

          memory/2792-187-0x0000000004060000-0x00000000040A1000-memory.dmp

          memory/2792-185-0x00000000041E0000-0x0000000004272000-memory.dmp

          memory/2792-148-0x0000000003C60000-0x0000000003CF4000-memory.dmp

          memory/5800-209-0x0000000002E60000-0x0000000002ECC000-memory.dmp

          memory/5800-211-0x000000001BF50000-0x000000001C100000-memory.dmp

          memory/5800-212-0x0000000002DB0000-0x0000000002DCA000-memory.dmp

          memory/5800-213-0x000000001CEB0000-0x000000001D038000-memory.dmp

          memory/5800-210-0x000000001BD00000-0x000000001BD94000-memory.dmp

          memory/5800-208-0x0000000000BE0000-0x0000000000C8E000-memory.dmp