Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/08/2026, 18:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260817-wxaefsch94
  • SHA256 dbd7db84627f1972a93727f2c349f9efb3236dd63a073d04a2f3ba6bbaee015e
  • 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 2 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.

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 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:\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:4876
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\0b5f4af0492903cf\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:4568
  • 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:4424
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 83653D8896ABC328285F6DBCC42BC8B3 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5800
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB925.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240761312 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3856
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIBCB0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240762062 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1172
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC4FE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240764312 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5960
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3732
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8D13A30811B9DDE18577C91E228251C1
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3700
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1349263C0FBDE806AA16CEAEBC4023DD E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2492
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1880
    • C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-pgco3x-relay.screenconnect.com&p=443&s=2044041f-8b0e-4849-a283-989f5de8eedc&k=BgIAAACkAABSU0ExAAgAAAEAAQCVM3TUvxqdRXDCJCvcK3WQwyxxwzFlMBHPAgkFqsQ42S5v%2bt83MOv5E2oRFhn3jwYEvTuGFffz2TQNsgp0O2QKLxvArgUU7FxHu%2f6oksveKOzbJvGiPiqpuX98TUpY251fikF%2fl2lqasrUQAw8wKAZn%2fzAbThJzEpKKa2NurXvn3qW3t9Tp3MPzURfXRbMeRyKIwDPgbxznFcWHqLXsRltOb8Rd%2fwSRpVWiacj5x%2bkm8zdAhg0EIUosJrLxWryumc9rBxvBOjExJTS5jWMUyo%2fd67jzwcu9MCoWvxKHv9kSa1MeoKXTedpKcvI3Bpp%2bjU3J%2fM3WnCJ5H5hhfpCS%2b3G"
      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:1468
      • C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.WindowsClient.exe" "RunRole" "d11eec33-bfc5-4001-86e5-1ee1c2e9800d" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5768

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a47c9.rbs

          • Path C:\Config.Msi\e5a47c9.rbs
          • Size 214KB
          • SHA256 a1d7241793bf64e94489954e2fdda08d151916404cadee82df849e4e1f4fbf1d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (0b5f4af0492903cf)\system.config
          • Size 964B
          • SHA256 b6cc450befe7545f7a1abc3a575ece5d78e558b181e938e26ebc6056b4a4f92e
          • MD5 SHA1 SHA512 TLSH

          MSIB925.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB925.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB925.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB925.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB925.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB925.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBCB0.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBCB0.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\0b5f4af0492903cf\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 2e0b208230c6d456591cfaad147abf5dd659f4f2be165b6a6b62c155e35e70c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5055.tmp

          • Path C:\Windows\Installer\MSI5055.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jbep34yq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0b5f4af0492903cf)\jbep34yq.newcfg
          • Size 883B
          • SHA256 892174b46409e400d56f586e0112acfe7ca7aa8f69421a6979300e5896119948
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0b5f4af0492903cf)\user.config
          • Size 683B
          • SHA256 dc52aee3c293479e3facac6d65fe690e193d626f04c7f45f4b0f3791fd1ac8c4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0b5f4af0492903cf)\user.config
          • Size 520B
          • SHA256 49b4290b197f9ae09e9805736ee34ce0e43ee137a8e09b7aba4f687afe2ae3ed
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 0700408772267a092d7ae4b83ed3dc8c5c0953321f97694829cf328f22794fd6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {ddf52c05-467a-4049-b452-39b27b78439b}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{ddf52c05-467a-4049-b452-39b27b78439b}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 9fc17fc04ba6330e526e68d1dacc8b7ba5174ee89b14aa739c708871264df779
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1172-77-0x0000000005A90000-0x0000000005AB8000-memory.dmp

          memory/1468-164-0x0000000004B30000-0x0000000004CE0000-memory.dmp

          memory/1468-154-0x0000000004820000-0x000000000483A000-memory.dmp

          memory/1468-160-0x00000000048E0000-0x0000000004974000-memory.dmp

          memory/1468-199-0x00000000050A0000-0x0000000005176000-memory.dmp

          memory/1468-195-0x0000000004EB0000-0x0000000004F42000-memory.dmp

          memory/1468-177-0x0000000004CE0000-0x0000000004D30000-memory.dmp

          memory/1468-197-0x0000000004D30000-0x0000000004D71000-memory.dmp

          memory/1468-194-0x0000000004DA0000-0x0000000004E0C000-memory.dmp

          memory/3856-47-0x0000000005950000-0x0000000005B00000-memory.dmp

          memory/3856-43-0x00000000036B0000-0x0000000003744000-memory.dmp

          memory/3856-35-0x00000000035E0000-0x000000000360E000-memory.dmp

          memory/3856-39-0x0000000003580000-0x000000000358C000-memory.dmp

          memory/4876-6-0x0000000005E50000-0x0000000006000000-memory.dmp

          memory/4876-1-0x00000000036A0000-0x00000000036A8000-memory.dmp

          memory/4876-0-0x0000000074592000-0x0000000074593000-memory.dmp

          memory/4876-7-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4876-8-0x00000000065C0000-0x0000000006B7A000-memory.dmp

          memory/4876-4-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4876-3-0x0000000005D30000-0x0000000005DC4000-memory.dmp

          memory/4876-2-0x00000000036C0000-0x00000000036CC000-memory.dmp

          memory/4876-9-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4876-5-0x0000000005DE0000-0x0000000005E08000-memory.dmp

          memory/4876-12-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4876-11-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/5768-220-0x000000001B820000-0x000000001B8B4000-memory.dmp

          memory/5768-221-0x000000001BA70000-0x000000001BC20000-memory.dmp

          memory/5768-222-0x00000000028C0000-0x00000000028DA000-memory.dmp

          memory/5768-223-0x000000001BDB0000-0x000000001BF38000-memory.dmp

          memory/5768-218-0x0000000002A50000-0x0000000002ABC000-memory.dmp

          memory/5768-217-0x00000000006E0000-0x000000000078E000-memory.dmp