Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 00:13

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.7MB
  • Sample260710-ahq8rsbs8p
  • SHA256 3b6d903ef38b90f919cd2a0f233550ba9f90813461e4e3e966c8c9305b53f606
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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 2 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 27 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 29 IoCs
  • Suspicious use of SendNotifyMessage 27 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 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⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4784
  • 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:4556
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 53930CBBAEF45217F21B83268D6C1448 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3848
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFC5C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240713265 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4796
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI305.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240714515 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1376
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI43B8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240731234 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3704
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2BA2D067BC253D462EB95D2F90F1410D
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1144
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DCFCEF5D506B50683691F1DEDC61A1B5 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3024
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:5984
    • C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-y2gsej-relay.screenconnect.com&p=443&s=3c5237d6-16d3-498b-8270-360dbf196d09&k=BgIAAACkAABSU0ExAAgAAAEAAQApdEqCPz%2bxx1%2bqCXtxv80Pnv%2fBZImfo1JDjqyrvuPVwWdRAewWSQCx6UFxrobJ0Q%2fqX2xxEnKAM2pivb0AOZNZfSzNNGCGaAuSQJhIVbkRUWACxFVCRfo20%2bM6OlcN4valDHdrU2cNe6VI25UNlf9ICEXfyQmQh4liHyUo%2bJ7aSjmdS37SJhj%2b3sSDFQehNNfl6fWmai4C7ZyuyMje3OKzC5AoV1hVg2Y98Wsy6%2byc0mC%2bk5Viy8JBLlUl1jSfMtTrlousfB81dJr9Hr6SEVtxgKYsSZBqAccWUhK9laIgy8xxDjLl56Luxr53%2b6GLsoDiUOaLyWkm4w2qXhR3Z8Pk"
      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:6044
      • C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.WindowsClient.exe" "RunRole" "30b952ad-5290-4e49-973e-5daa51f13e75" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:980

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59487a.rbs

          • Path C:\Config.Msi\e59487a.rbs
          • Size 214KB
          • SHA256 a3407cbfb93713cff8bd7b898f38f5405b5032ac954e11f84e03acd5f3b03fda
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\Client.en-US.resources
          • Size 64KB
          • SHA256 efdb0b4fcc38b52cbf72336bd107a814db8454003f3495de21e2026a148823ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.Client.dll
          • Size 411KB
          • SHA256 28ff8468ad2db8b41fe9d9a2971dd56fea0aecad14808fe4b31c9b1072d3b129
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.ClientService.dll
          • Size 90KB
          • SHA256 9cf2c77df0a1a1e854ec1bbc6940d96f508bfb4b0555a07657c77314803a717e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 01341bd42426c3d110136cc94433df00dbad690a56593f7cca41a93f698f214a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 92e831159d5e9f2676241ab7ce80060a0b1dc34684f83797aec93b3ecff41139
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 2292aac48ad575c6d1ed99c862e3408e254db34b8fea50cf3594aa08f3e875d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.WindowsClient.exe
          • Size 665KB
          • SHA256 6e95d68102dc761942e67e2337ad8e49d32ee7c8943340489a01e2c56ea6e00b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 3fa1fe4a588015cc94eceb06867f16a5e562293139fbf6b36bde21dba478968d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (bf428b2b009fee58)\system.config
          • Size 964B
          • SHA256 cb6e0cc19878a857ac5bf170667cc9d8f09687026ababe5f755f80e1e4f1fa51
          • MD5 SHA1 SHA512 TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI305.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI305.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 528242c7745783b3b4ae72fec13bb9bd49b17b0e00f60c027351147f21fdd359
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIFC5C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC5C.tmp
          • Size 1.1MB
          • SHA256 cd6bccce073b2a5205840ec31c91df0d443cc57c68756de2c03e21db8e3fc157
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC5C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC5C.tmp-\ScreenConnect.Core.dll
          • Size 562KB
          • SHA256 c51a2b5cb5054ec0136e332bf290c8af3392d7936b5137a07423df08ab33d264
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC5C.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 432abf3a198ff64fb2c660eb06b2bb33a16cf69fd28d836cfcb65c43d37dc462
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC5C.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 10933424536d53e397f651915f862c933199c50722943c236b020787b2e8f147
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI4B39.tmp

          • Path C:\Windows\Installer\MSI4B39.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e594879.msi

          • Path C:\Windows\Installer\e594879.msi
          • Size 9.7MB
          • SHA256 3b6d903ef38b90f919cd2a0f233550ba9f90813461e4e3e966c8c9305b53f606
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3mv4v5bp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\3mv4v5bp.newcfg
          • Size 589B
          • SHA256 b8b31c595c00edb76e007b9570b18f8c1118be1437364711586d9467513a4ff8
          • MD5 SHA1 SHA512 TLSH

          co5zinhb.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\co5zinhb.newcfg
          • Size 589B
          • SHA256 2fe36dedc492729745d4e2e8a8f9490f39c150c76458f68a6784f0086bf00855
          • MD5 SHA1 SHA512 TLSH

          g4bcowet.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\g4bcowet.newcfg
          • Size 589B
          • SHA256 af0928470e534de07358a6824646d4923aaebe03e1f8ad8fbc45346583b23e3f
          • MD5 SHA1 SHA512 TLSH

          gvhfi3g1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\gvhfi3g1.newcfg
          • Size 589B
          • SHA256 38e4ce98d69d2e15ae620f160ba98115024f6951820201394db4ad73373f8fe4
          • MD5 SHA1 SHA512 TLSH

          pwofxm5k.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\pwofxm5k.newcfg
          • Size 589B
          • SHA256 33571571fa110c441e1274186b59ec4e9e2cd8b98a6aaf0dc8270e0adb2800b9
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\user.config
          • Size 589B
          • SHA256 3868fdccc645adf522db83c4ce382ea1ed03ca74c0fe8ffe95483075e953fb3a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\user.config
          • Size 589B
          • SHA256 88cd885acb4153dd8c7d381e8efa7225a70f79aa98c7a1b5617f06b7316b4f07
          • MD5 SHA1 SHA512 TLSH

          xdi4ab4f.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\xdi4ab4f.newcfg
          • Size 589B
          • SHA256 fadcc595ff32299d3be4b597ed2d2962af8eb46830d6f9109b41782183b635f8
          • MD5 SHA1 SHA512 TLSH

          xj4zq3rc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bf428b2b009fee58)\xj4zq3rc.newcfg
          • Size 589B
          • SHA256 0243a6b7551dbd041159ad8ad6d9648148fdc63d36a15dc31e07d3c1b3b32626
          • MD5 SHA1 SHA512 TLSH

          memory/980-179-0x000000001BE70000-0x000000001C020000-memory.dmp

          memory/980-182-0x00000000015F0000-0x000000000160A000-memory.dmp

          memory/980-183-0x0000000001610000-0x0000000001651000-memory.dmp

          memory/980-181-0x0000000001590000-0x00000000015AA000-memory.dmp

          memory/980-180-0x000000001C1B0000-0x000000001C338000-memory.dmp

          memory/980-177-0x000000001B7E0000-0x000000001B84A000-memory.dmp

          memory/980-176-0x0000000000B50000-0x0000000000BFA000-memory.dmp

          memory/980-178-0x000000001BC20000-0x000000001BCB4000-memory.dmp

          memory/1376-62-0x0000000005D10000-0x0000000005D38000-memory.dmp

          memory/4796-19-0x0000000003A10000-0x0000000003A3E000-memory.dmp

          memory/4796-23-0x0000000003A50000-0x0000000003A5C000-memory.dmp

          memory/4796-27-0x0000000005BA0000-0x0000000005C34000-memory.dmp

          memory/4796-31-0x0000000005DF0000-0x0000000005FA0000-memory.dmp

          memory/4796-32-0x0000000006560000-0x0000000006B1A000-memory.dmp

          memory/6044-168-0x0000000004510000-0x00000000045E5000-memory.dmp

          memory/6044-136-0x0000000001810000-0x000000000182A000-memory.dmp

          memory/6044-142-0x0000000003DA0000-0x0000000003E34000-memory.dmp

          memory/6044-146-0x0000000003FF0000-0x00000000041A0000-memory.dmp

          memory/6044-166-0x0000000003F50000-0x0000000003F91000-memory.dmp

          memory/6044-159-0x0000000003F90000-0x0000000003FE0000-memory.dmp

          memory/6044-164-0x0000000004320000-0x00000000043B2000-memory.dmp

          memory/6044-163-0x0000000004210000-0x000000000427A000-memory.dmp