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
    26/08/2026, 00:11

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260826-ag36yabc45
  • SHA256 2fb5710737e988cdb0da4b4ae9e4e10603c02b9e14cd0a5749e4df2ec05b95df
  • 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 3 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.

  • 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 10 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:3632
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\e01f688e200632e4\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:4164
  • 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:2448
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E3FD7ACAF5A1FBB7532E4DDA126447A9 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2348
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEEFA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240775015 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3080
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF13D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240775531 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1712
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF66E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240776859 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4056
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5696
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3245E22C7DDEE489D48D8A9F5C5B17EE
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4348
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 74711EF1418E76AF66C4AB99724B6DF1 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2552
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5464
    • C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-nesa0g-relay.screenconnect.com&p=443&s=2945615b-0354-4e8e-9d0e-01945fe29345&k=BgIAAACkAABSU0ExAAgAAAEAAQANTgSmajANaduOd3dOvjYDbhFTAFnGLLv%2bNzXsLgBP2VNRYNITt%2fUqkyxmi%2fVh9z5icSI%2bIjqv3C%2brsabZr%2fKqPEWwgeklR9WVMf1kEvZPVkCfBptyMqFhxmmfvC3xtam39gtCTI%2b5%2bI69zQyd6Oo4V1mJE13cAExD1ps3A%2fT5TYtuVZ4uymMS8t7ZqvSqEcID91BrhaHzgcuP3YQ47kVoLf4Ovsin7NveEtzvSvtD%2fQ3q8zMMbYr1fF%2beI87e%2bzUOfSVM9NkXDetyo3TKn5urSsbLB0jjg%2fJsr4aD3eM5sOXjUoItEYKmt2ns4OAGKa0WMvBZ%2bG9IwkAAaqkdtPnK"
      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:6028
      • C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsClient.exe" "RunRole" "7f872f42-1e44-49d1-943a-c16b61684389" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1048
      • C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsClient.exe" "RunRole" "49e9ba42-1102-4ca3-9ee0-f4b0d2adc096" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2444

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a3f6d.rbs

          • Path C:\Config.Msi\e5a3f6d.rbs
          • Size 214KB
          • SHA256 db0e859f33df202d6654721a9f807859ad8d091bb1fc112f8fb200e376c328dc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e01f688e200632e4)\system.config
          • Size 972B
          • SHA256 86d490865fda2d9adede453a2bfb3123a0f6bfa419e86d5fb1eddbcbade25772
          • MD5 SHA1 SHA512 TLSH

          MSIEEFA.tmp

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

          Microsoft.Deployment.WindowsInstaller.dll

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

          ScreenConnect.Core.dll

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

          ScreenConnect.InstallerActions.dll

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

          ScreenConnect.Windows.dll

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

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF13D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF13D.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\e01f688e200632e4\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 4afab0b971c645eb8b682bf606261af82a5ca5507d54b3ea21d32c2287f026e8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI45B6.tmp

          • Path C:\Windows\Installer\MSI45B6.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          diyds2wk.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e01f688e200632e4)\diyds2wk.newcfg
          • Size 884B
          • SHA256 345316b7692ccf7639e6bc4a9395b6b8463c6a08e0348cf9b6099320d4b945b4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e01f688e200632e4)\user.config
          • Size 520B
          • SHA256 ae63200760119e36f8a426d5fb0b289a5732142bba69d1dc98a88678b92d0f4a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e01f688e200632e4)\user.config
          • Size 683B
          • SHA256 9dfb47080431ee62b90460863e527cced178c864fd153ef47fa37808b25594a3
          • MD5 SHA1 SHA512 TLSH

          memory/1048-220-0x000000001BA20000-0x000000001BAB4000-memory.dmp

          memory/1048-223-0x000000001BFB0000-0x000000001C138000-memory.dmp

          memory/1048-222-0x0000000001120000-0x000000000113A000-memory.dmp

          memory/1048-217-0x0000000000800000-0x00000000008AE000-memory.dmp

          memory/1048-221-0x000000001BC70000-0x000000001BE20000-memory.dmp

          memory/1048-218-0x0000000002B10000-0x0000000002B7C000-memory.dmp

          memory/1712-77-0x0000000006240000-0x0000000006268000-memory.dmp

          memory/3080-47-0x0000000005D90000-0x0000000005F40000-memory.dmp

          memory/3080-43-0x0000000005B40000-0x0000000005BD4000-memory.dmp

          memory/3080-39-0x0000000005A40000-0x0000000005A4C000-memory.dmp

          memory/3080-35-0x00000000039B0000-0x00000000039DE000-memory.dmp

          memory/3632-6-0x0000000005920000-0x0000000005AD0000-memory.dmp

          memory/3632-13-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/3632-7-0x0000000006090000-0x000000000664A000-memory.dmp

          memory/3632-11-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/3632-9-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/3632-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp

          memory/3632-5-0x0000000003160000-0x0000000003188000-memory.dmp

          memory/3632-8-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/3632-3-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/3632-1-0x0000000001920000-0x0000000001928000-memory.dmp

          memory/3632-4-0x00000000057A0000-0x0000000005834000-memory.dmp

          memory/3632-2-0x0000000003130000-0x000000000313C000-memory.dmp

          memory/6028-183-0x0000000003CD0000-0x0000000003D3C000-memory.dmp

          memory/6028-166-0x0000000003C10000-0x0000000003C60000-memory.dmp

          memory/6028-164-0x0000000003D70000-0x0000000003F20000-memory.dmp

          memory/6028-160-0x0000000003B20000-0x0000000003BB4000-memory.dmp

          memory/6028-186-0x0000000003C60000-0x0000000003CA1000-memory.dmp

          memory/6028-190-0x00000000041B0000-0x0000000004286000-memory.dmp

          memory/6028-154-0x0000000003A10000-0x0000000003A2A000-memory.dmp

          memory/6028-184-0x0000000003FC0000-0x0000000004052000-memory.dmp