Analysis

  • max time kernel
    80s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 12:14

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260708-pehvjsft3w
  • SHA256 631425d207e50b3cfc74d9ad0b0722493f6340a06c59f153f330b8d534b69fe8
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • 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 48 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 64 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 Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 60 IoCs
  • Suspicious use of SendNotifyMessage 54 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • 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:2784
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:788
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5704
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:1000
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Badlisted process makes network request
      • 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:5844
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 931256ADF81D52BCDA87C9F07C5CF303 C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3008
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9BC9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240753937 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
          3⤵
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:3476
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA4E2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240756656 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
          3⤵
          • Badlisted process makes network request
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:3624
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIBA8E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240761734 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
          3⤵
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:3420
      • C:\Windows\system32\srtasks.exe
        C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
        2⤵
          PID:3048
        • C:\Windows\syswow64\MsiExec.exe
          C:\Windows\syswow64\MsiExec.exe -Embedding CCCA4594390EC18419AD12400A5C86F4
          2⤵
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:4436
        • C:\Windows\syswow64\MsiExec.exe
          C:\Windows\syswow64\MsiExec.exe -Embedding FB5BDB313E6F8868336445E046F84FA4 E Global\MSI0000
          2⤵
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1552
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4236
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4288
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:1112
      • C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-accmjr-relay.screenconnect.com&p=443&s=6bac10c4-be0b-4c7d-bede-abeabff61602&k=BgIAAACkAABSU0ExAAgAAAEAAQAdTg6A%2fbNb0p%2fzH0oCf1%2brAmFZHGuhen%2flfEhoC9AbBPiCPRDbpvJg6Jo1Z80F9uhEffH59YnY%2frJNGMCSXeovHCWVra5fpZHBiPUEEYqjLJbUsOz9NU20lc3ZTK%2bSHGR%2bkjuN67amMBXBDnqa988IgvGntmfsQVqPYAY3Cx4%2bCdXDDTlXLoTag%2fF5uih3p8hrFflvg8fjXP60oYLKqb8jPJXM7GmEfnNKBeU2C7Cf8%2fzh6iP3AquvtMqOOTw6iHx38yai6kdogZOqhOIrIyNzKMCvpGmYmhQGDWXtq%2fJjGZBG%2bCQTkBUJQEaVrFX6xD4Yp9XDTMP02tL5BNMN9VXL"
        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:5932
        • C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe" "RunRole" "88c34309-dcd7-47cd-932e-b88c50686822" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:3948
        • C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe" "RunRole" "f8c2839c-0353-45fb-952d-147948ab1ca0" "System"
          2⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Modifies data under HKEY_USERS
          PID:4572

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e5a1a8f.rbs

            • Path C:\Config.Msi\e5a1a8f.rbs
            • Size 214KB
            • SHA256 06d61d9d24ab3bd8af3c3606137413aed2a0c5209a049626dd18549034202ee0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\Client.en-US.resources
            • Size 64KB
            • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.dll
            • Size 91KB
            • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.Core.dll
            • Size 577KB
            • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe
            • Size 675KB
            • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\system.config
            • Size 968B
            • SHA256 e00a42502c48fb816fb73e7a646b39c21c243ded76cb28f67fc544341e0e198b
            • MD5 SHA1 SHA512 TLSH

            prep_Activatable Class_Hermes_perf.cache

            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 599B
            • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
            • MD5 SHA1 SHA512 TLSH

            MSI9BC9.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9BC9.tmp
            • Size 1.1MB
            • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9BC9.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9BC9.tmp-\ScreenConnect.Core.dll
            • Size 567KB
            • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9BC9.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9BC9.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSIA4E2.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIA4E2.tmp-\ScreenConnect.WindowsInstaller.dll
            • Size 137KB
            • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI227E.tmp

            • Path C:\Windows\Installer\MSI227E.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e5a1a8e.msi

            • Path C:\Windows\Installer\e5a1a8e.msi
            • Size 9.8MB
            • SHA256 631425d207e50b3cfc74d9ad0b0722493f6340a06c59f153f330b8d534b69fe8
            • MD5 SHA1 SHA512 SSDEEP TLSH

            msqvzei5.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (edb47a9132b9e027)\msqvzei5.newcfg
            • Size 883B
            • SHA256 dc131985612840672bdd45f6375e4731a20a787097e6f18ff300e57662b0acab
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (edb47a9132b9e027)\user.config
            • Size 683B
            • SHA256 323f87abafcedb371b8ca34246e9084f8cef66e810dd12f049b685aaef38794d
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (edb47a9132b9e027)\user.config
            • Size 520B
            • SHA256 ed974f8d24e6aaa411a2b21f51ab21ea2a463e7533c4481896379e88ea2cbc28
            • MD5 SHA1 SHA512 TLSH

            {d9a5b57a-500e-4d66-9356-d7e76885c644}_OnDiskSnapshotProp

            • Path \??\Volume{93100e7f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{d9a5b57a-500e-4d66-9356-d7e76885c644}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 af30988643da4cd2d8f859b45aaea88291af21477ad06b1d8d914b824480e469
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1000-308-0x000000000F890000-0x000000000F910000-memory.dmp

            memory/1000-307-0x000000000F890000-0x000000000F910000-memory.dmp

            memory/3476-19-0x0000000003490000-0x00000000034BE000-memory.dmp

            memory/3476-27-0x0000000005590000-0x0000000005624000-memory.dmp

            memory/3476-23-0x00000000054E0000-0x00000000054EC000-memory.dmp

            memory/3476-31-0x00000000057E0000-0x0000000005990000-memory.dmp

            memory/3476-32-0x0000000005F50000-0x000000000650A000-memory.dmp

            memory/3624-227-0x00000000051E0000-0x0000000005208000-memory.dmp

            memory/3948-413-0x000000001AD50000-0x000000001ADBC000-memory.dmp

            memory/3948-417-0x000000001B660000-0x000000001B7E8000-memory.dmp

            memory/3948-416-0x00000000022B0000-0x00000000022CA000-memory.dmp

            memory/3948-415-0x000000001B4B0000-0x000000001B660000-memory.dmp

            memory/3948-412-0x00000000000B0000-0x000000000015C000-memory.dmp

            memory/3948-414-0x000000001B160000-0x000000001B1F4000-memory.dmp

            memory/4236-122-0x000001AB141F0000-0x000001AB14210000-memory.dmp

            memory/4236-87-0x000001AB02C00000-0x000001AB02C20000-memory.dmp

            memory/4236-76-0x000001AB001E0000-0x000001AB002E0000-memory.dmp

            memory/4236-74-0x000001AB001E0000-0x000001AB002E0000-memory.dmp

            memory/4236-88-0x000001AB02E20000-0x000001AB02F20000-memory.dmp

            memory/4236-98-0x000001AB02DA0000-0x000001AB02DC0000-memory.dmp

            memory/4572-419-0x00000000022B0000-0x00000000022F1000-memory.dmp

            memory/5932-388-0x0000000003F40000-0x0000000003FAC000-memory.dmp

            memory/5932-348-0x0000000001660000-0x000000000167A000-memory.dmp

            memory/5932-354-0x0000000003D70000-0x0000000003E04000-memory.dmp

            memory/5932-358-0x0000000003FC0000-0x0000000004170000-memory.dmp

            memory/5932-371-0x0000000003E80000-0x0000000003ED0000-memory.dmp

            memory/5932-393-0x0000000004400000-0x00000000044D6000-memory.dmp

            memory/5932-389-0x0000000004210000-0x00000000042A2000-memory.dmp

            memory/5932-391-0x0000000003ED0000-0x0000000003F11000-memory.dmp