Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 00:08

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260831-aexldabn2t
  • SHA256 534ab926c91bc8bf9b9081330b91b480d18af2de66ad0dda4be681e8206747ae
  • 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 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:4636
  • 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:5944
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 092EA08E4A9F2D936DE35DFB5D0B6877 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5664
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4DA9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733937 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2100
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI52CA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734953 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1584
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI59A1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736796 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5940
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:408
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding ACA888B60FC75BEF31A05C1D1A4D24B6
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2264
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 75972B86870A208E55CD4D26CAD4963C E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5608
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1784
    • C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-sw785a-relay.screenconnect.com&p=443&s=c6531786-b0b2-4a98-8f9c-833b0bf46b92&k=BgIAAACkAABSU0ExAAgAAAEAAQBFggCYhR9EuRjFQ%2b8xzdgR8246h3kYjLpvcMBXcvkAQbnQkv5zuUQwV7N4WiwvoOQXzxQUOgjczLI1WKYAD16VLW8zGcbmvc%2f1v8e1hlcIl1IFxyvtyONaXKYfKhOrs8ITPJgntTwr0FYolbH762LPxrpnjNrTQ%2bpsNn5qKI%2fx6PnBQiEwVWc36jjfxX42BbnLTTSxMQqnbhhtz219x8UnPL2Fav%2fSU9P5sg1Xa619BeDkStB7lfYnyuI7cJwgp295LGjiDpJXSUvUUJqm149hOQC1C4Thwwem%2bADwRiItiDLa%2b4UKb7NiEOUUFlGT%2bbbnqC5LZyFd9IWSLDfkiynS"
      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:5140
      • C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsClient.exe" "RunRole" "2ac880f1-56bf-436d-9435-b66bd468df5c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5008
      • C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsClient.exe" "RunRole" "bc823b58-1f4a-46e6-85fb-56d714fbc98a" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4712

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e599ee7.rbs

          • Path C:\Config.Msi\e599ee7.rbs
          • Size 214KB
          • SHA256 b7ead142ac7be139436c1e77d6681f59c3b45573a4f79dbe271d0b28abd111c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ceb4683ccc458cec)\system.config
          • Size 960B
          • SHA256 3884edd691c7ad3c4de35d83b51d50051b600453fdc70916ef55971c538a77d4
          • MD5 SHA1 SHA512 TLSH

          MSI4DA9.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4DA9.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4DA9.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4DA9.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4DA9.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4DA9.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI52CA.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI52CA.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA494.tmp

          • Path C:\Windows\Installer\MSIA494.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e599ee6.msi

          • Path C:\Windows\Installer\e599ee6.msi
          • Size 9.8MB
          • SHA256 534ab926c91bc8bf9b9081330b91b480d18af2de66ad0dda4be681e8206747ae
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dk05sc1k.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ceb4683ccc458cec)\dk05sc1k.newcfg
          • Size 683B
          • SHA256 10372603a5c5cfb986db154c27d22098d397e0477b0a7b93ff094f2f5a989c3e
          • MD5 SHA1 SHA512 TLSH

          oeivask4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ceb4683ccc458cec)\oeivask4.newcfg
          • Size 884B
          • SHA256 ccf845a7ab688770ff57a3d64f90a6a87dfd784f7981269c0657eeaacffde924
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ceb4683ccc458cec)\user.config
          • Size 520B
          • SHA256 c3c591681429c841604119db94e32aa9810266244c96780838f754310d3e938d
          • MD5 SHA1 SHA512 TLSH

          {f7e88bce-afec-444c-85f0-29b676bbf7b3}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{f7e88bce-afec-444c-85f0-29b676bbf7b3}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 996c8b88c18efb6c9d63e1eaad811d759e4ba7d88b4f35e7557aed1e9e97fae0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1584-64-0x00000000052E0000-0x0000000005308000-memory.dmp

          memory/2100-21-0x0000000003F80000-0x0000000003FAE000-memory.dmp

          memory/2100-29-0x00000000060F0000-0x0000000006184000-memory.dmp

          memory/2100-25-0x0000000003FC0000-0x0000000003FCC000-memory.dmp

          memory/2100-33-0x0000000006340000-0x00000000064F0000-memory.dmp

          memory/2100-34-0x0000000006AB0000-0x000000000706A000-memory.dmp

          memory/4712-214-0x000000001C960000-0x000000001CA50000-memory.dmp

          memory/5008-206-0x00000000009B0000-0x0000000000A5E000-memory.dmp

          memory/5008-212-0x000000001C0A0000-0x000000001C228000-memory.dmp

          memory/5008-211-0x00000000012E0000-0x00000000012FA000-memory.dmp

          memory/5008-210-0x000000001BD60000-0x000000001BF10000-memory.dmp

          memory/5008-209-0x000000001BB10000-0x000000001BBA4000-memory.dmp

          memory/5008-208-0x0000000002AF0000-0x0000000002B5C000-memory.dmp

          memory/5140-188-0x0000000004240000-0x0000000004316000-memory.dmp

          memory/5140-147-0x0000000003AF0000-0x0000000003B84000-memory.dmp

          memory/5140-151-0x0000000003D40000-0x0000000003EF0000-memory.dmp

          memory/5140-164-0x0000000003EF0000-0x0000000003F40000-memory.dmp

          memory/5140-183-0x0000000003F40000-0x0000000003FAC000-memory.dmp

          memory/5140-186-0x0000000003CF0000-0x0000000003D31000-memory.dmp

          memory/5140-184-0x0000000004050000-0x00000000040E2000-memory.dmp

          memory/5140-141-0x00000000039F0000-0x0000000003A0A000-memory.dmp