Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 00:18

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260910-alzz3svves
  • SHA256 442f62f8c7230aa0e6010206b8c517c93e6ff8a534aeb3e5492a3d92d997b60b
  • 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 21 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 14 IoCs
  • Suspicious use of SendNotifyMessage 12 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:2172
  • 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:3216
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0D84B5F1696B89B81019A2E33C3E3EE4 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI265A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724015 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5772
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2F64.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725953 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5412
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3939.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240728453 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1256
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4492
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 717BF9BD5631F15B0C9C9947979F14B7
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2788
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4F47B4D98E0DF15A3328CA4D5C651499 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4780
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4576
    • C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-nskln7-relay.screenconnect.com&p=443&s=2c0300cf-b88c-482d-821f-40e392934c35&k=BgIAAACkAABSU0ExAAgAAAEAAQCpQmrtT5VwBZvmnGcP%2fRAKiPFoj7CQRj3PiMLDlv0OsZj3c8p1%2bZBSqM2PT%2fHdoC5HTWJgFC0zttUDCQ6YxupfPYuDTVzPCs4LOArw9IiMiPAUAySYEvp4qA7ZctVb%2bQ3eGAhJED9agaafr6huJAxTF14Y35giDtBi90WD7D8Km7oFF76ZD%2fh%2bGWkmxodk%2fi7rvPdSDeodX1ErSQL1jpwuyHX%2ffsHbdWA8BwHDGpXZYqobqHD%2fFTt7mffx%2f4ekhl2HD8neMrEmyWCgrfQxjiuEt2HbyRzVh7Etbz%2fj7HRh9AojmjBcc7%2fHABOuXltgVzzdEX5j%2by0%2fsUoQk%2fLrNDrS&c=new&c=&c=&c=&c=&c=&c=&c="
      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:1084
      • C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsClient.exe" "RunRole" "063b4128-b557-4f83-bfea-2157614f2c1c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5964
      • C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsClient.exe" "RunRole" "26866dc7-50a4-49da-91ad-1753aeee2818" "System"
        2⤵
        • Executes dropped EXE
        PID:4308

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59b230.rbs

          • Path C:\Config.Msi\e59b230.rbs
          • Size 214KB
          • SHA256 a15fef7a1b1512eb46e4d866158fb934e35a6949a7f7c429bf1d4604fad2b4c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6df659232e81a303)\system.config
          • Size 974B
          • SHA256 0aba7fa6fde906b1a667e76ed2238affd1258ecf85b630112b3aafc678c11b1f
          • MD5 SHA1 SHA512 TLSH

          MSI265A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI265A.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI265A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI265A.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI265A.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI265A.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2F64.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2F64.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB9A3.tmp

          • Path C:\Windows\Installer\MSIB9A3.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59b22f.msi

          • Path C:\Windows\Installer\e59b22f.msi
          • Size 9.8MB
          • SHA256 442f62f8c7230aa0e6010206b8c517c93e6ff8a534aeb3e5492a3d92d997b60b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          elziuepg.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6df659232e81a303)\elziuepg.newcfg
          • Size 884B
          • SHA256 844753043990f7f4070bcda0dd9f7d90cce08396d396ce71d61d7e6d2c1eac3c
          • MD5 SHA1 SHA512 TLSH

          gsgy0oot.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6df659232e81a303)\gsgy0oot.newcfg
          • Size 884B
          • SHA256 91ef156b3aa5a42d355282e0fe4c6c52ff4b1df1537c5df37cf5552bc0cc200a
          • MD5 SHA1 SHA512 TLSH

          jjhhuanl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6df659232e81a303)\jjhhuanl.newcfg
          • Size 884B
          • SHA256 b5542cab52479f9fa39010fdbab01daaba0bf23c16c65a58ec0e2f6a3f19c505
          • MD5 SHA1 SHA512 TLSH

          r2fjunvp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6df659232e81a303)\r2fjunvp.newcfg
          • Size 884B
          • SHA256 de4e825a187348487b634de73ceba31aeb5a3f60d6fd1d4053cd556ef1e63af5
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6df659232e81a303)\user.config
          • Size 520B
          • SHA256 73d9d9a9a4c8a2ee8d71fb5e8124a7b3a9ffbc7e587980e6fe0dc55d494d0ad1
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6df659232e81a303)\user.config
          • Size 683B
          • SHA256 d9d0474913f6886bbf8a5c10e2be875c47c4facc74f3bc617459227fa3c017f2
          • MD5 SHA1 SHA512 TLSH

          wxep1f0j.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6df659232e81a303)\wxep1f0j.newcfg
          • Size 884B
          • SHA256 9100c0f5a12f81a3f209ad0d06edc34c50a49c8351b6f0ec1cac613ee8db52dc
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 32524b9cbb11b9069a7830f2e4c267094d04dc2c49f038af0bf511ffa3ff9aca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {fd52266e-282a-4b9b-8e1d-aced87d3ffe7}_OnDiskSnapshotProp

          • Path \??\Volume{c61fbfff-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{fd52266e-282a-4b9b-8e1d-aced87d3ffe7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 816bdf0e7a7bf111583f635e2b342ae5b03f60a10e727166cbad477a24c751da
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1084-151-0x0000000004710000-0x00000000048C0000-memory.dmp

          memory/1084-185-0x00000000048C0000-0x0000000004901000-memory.dmp

          memory/1084-141-0x0000000001CE0000-0x0000000001CFA000-memory.dmp

          memory/1084-187-0x0000000004C30000-0x0000000004D06000-memory.dmp

          memory/1084-147-0x00000000044C0000-0x0000000004556000-memory.dmp

          memory/1084-183-0x0000000004A40000-0x0000000004AD2000-memory.dmp

          memory/1084-182-0x0000000004930000-0x000000000499C000-memory.dmp

          memory/1084-165-0x00000000046B0000-0x0000000004700000-memory.dmp

          memory/3216-156-0x00000273888B0000-0x0000027389254000-memory.dmp

          memory/5412-64-0x0000000003EB0000-0x0000000003ED8000-memory.dmp

          memory/5772-29-0x0000000005930000-0x00000000059C6000-memory.dmp

          memory/5772-25-0x0000000005820000-0x000000000582C000-memory.dmp

          memory/5772-33-0x0000000005B80000-0x0000000005D30000-memory.dmp

          memory/5772-21-0x00000000057E0000-0x000000000580E000-memory.dmp

          memory/5772-34-0x00000000062F0000-0x00000000068AA000-memory.dmp

          memory/5964-208-0x000000001B7C0000-0x000000001B856000-memory.dmp

          memory/5964-209-0x000000001BA10000-0x000000001BBC0000-memory.dmp

          memory/5964-210-0x0000000002B00000-0x0000000002B1A000-memory.dmp

          memory/5964-211-0x000000001BD50000-0x000000001BED8000-memory.dmp

          memory/5964-212-0x0000000002B20000-0x0000000002B61000-memory.dmp

          memory/5964-207-0x000000001B3A0000-0x000000001B40C000-memory.dmp

          memory/5964-206-0x0000000000700000-0x00000000007B0000-memory.dmp