Resubmissions

30/07/2026, 20:03

260730-ys3ljsfn8v8

30/07/2026, 18:33

260730-w7c84adf988

Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/07/2026, 18:33

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260730-w7c84adf98
  • SHA256 7f478f87466469674336ba1f424bf68bc1a1245feb0c153a784710900c47c7db
  • 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.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • 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:2660
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\2a62cc849e58bd92\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:3116
  • 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:2236
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A6870BDD9B04724AE8F5D3F50DE72501 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:944
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF5FF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240776906 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1780
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF9F7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240777750 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4464
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI13.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240779312 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:724
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F94F3CE9E0862369A5AAB32EAA77B6EB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4712
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B4775FA0E5DA8EC04AE904B325431E9C E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1284
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4772
    • C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-yk8u0z-relay.screenconnect.com&p=443&s=8d38cf60-240e-4e63-b0cf-0bd7dd865cad&k=BgIAAACkAABSU0ExAAgAAAEAAQBVx8JfUhyXjbPzo0oNZWTZfC1DAeeTiajUSIaCvQi3%2fnaGBnPEBVXrMbXajhOmod7oktHh5teaFMYYHtVBoOxckKCB3MndGtCZ626BxzUOX597ftXfvaCEAepIsY5wnpVYUnCx6t7SO8yeNCSPFFA3Bi8rgym49KYh2H96iomBbP3CmhN8bl83tx9rKZjDpVvGbCnSPwbh%2f2TvF3ebS7AylscmxMyV3TwoEFOIhE7BJ%2bGb%2fFmANsRsjUalQWayEhk1yXKWJzc8Ek0XzPH2bBywnjseC6rKPsrmQ%2biux3DBfN3%2fsR3Jn%2fiDKdC1u7kFm9nKkQ7jME66n8d4UZAq%2fRjF"
      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:4476
      • C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsClient.exe" "RunRole" "03ac87fd-1f75-4f3b-af0b-5cbcf546ff46" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3168
      • C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsClient.exe" "RunRole" "738799cf-08e4-40e7-a0fa-ab6661c12ab4" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies data under HKEY_USERS
        PID:3944

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a59f9.rbs

          • Path C:\Config.Msi\e5a59f9.rbs
          • Size 214KB
          • SHA256 9afc3828659197950c5e3f750ff2117e670675fbe12ea6ceb4667c5a44d66cce
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2a62cc849e58bd92)\system.config
          • Size 960B
          • SHA256 cdd1ddaaa13b4a0109a8854ed57676bb6fdda0d9c9e42db2123883be05386a94
          • MD5 SHA1 SHA512 TLSH

          MSIF5FF.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF5FF.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF5FF.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF5FF.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF5FF.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF5FF.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF9F7.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF9F7.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\2a62cc849e58bd92\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 8b6754f99ef7e0953e48a3895052b75e2111e105bd0eda4f605ac9501ebbc1c8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI6295.tmp

          • Path C:\Windows\Installer\MSI6295.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3iebzwkm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2a62cc849e58bd92)\3iebzwkm.newcfg
          • Size 882B
          • SHA256 37dc640695c1d80737dd5ae1c6ffadb65a441988d766b762ae6860dee3abcdc7
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2a62cc849e58bd92)\user.config
          • Size 683B
          • SHA256 8890b5b48185baa63d9505e28e94f8029d2d7a625368a9040f031b733b801091
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2a62cc849e58bd92)\user.config
          • Size 520B
          • SHA256 b252d5fd0630a0152a6ee5b00b4f96a99497a1fe615edc48f3689407185a8e91
          • MD5 SHA1 SHA512 TLSH

          {ec129da8-5664-42d2-a3e0-fdd09c8843f3}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{ec129da8-5664-42d2-a3e0-fdd09c8843f3}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 100f2c79dc679a6bfd85e8dd89b469dccc34701ad8735234440bd257192c28a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1780-43-0x0000000004100000-0x0000000004194000-memory.dmp

          memory/1780-47-0x0000000006410000-0x00000000065C0000-memory.dmp

          memory/1780-39-0x0000000003FC0000-0x0000000003FCC000-memory.dmp

          memory/1780-35-0x0000000003F70000-0x0000000003F9E000-memory.dmp

          memory/2660-4-0x0000000006220000-0x0000000006248000-memory.dmp

          memory/2660-1-0x0000000003BD0000-0x0000000003BD8000-memory.dmp

          memory/2660-11-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/2660-7-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/2660-6-0x0000000006310000-0x00000000064C0000-memory.dmp

          memory/2660-2-0x0000000003DA0000-0x0000000003DAC000-memory.dmp

          memory/2660-9-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/2660-8-0x0000000006A80000-0x000000000703A000-memory.dmp

          memory/2660-3-0x0000000006190000-0x0000000006224000-memory.dmp

          memory/2660-13-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/2660-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp

          memory/2660-5-0x0000000074FA0000-0x000000007575C000-memory.dmp

          memory/3168-222-0x0000000002320000-0x000000000233A000-memory.dmp

          memory/3168-219-0x000000001B1D0000-0x000000001B264000-memory.dmp

          memory/3168-224-0x0000000002340000-0x0000000002381000-memory.dmp

          memory/3168-223-0x000000001B760000-0x000000001B8E8000-memory.dmp

          memory/3168-221-0x000000001B420000-0x000000001B5D0000-memory.dmp

          memory/3168-217-0x0000000000140000-0x00000000001EE000-memory.dmp

          memory/3168-218-0x000000001ADC0000-0x000000001AE2C000-memory.dmp

          memory/4464-77-0x0000000003300000-0x0000000003328000-memory.dmp

          memory/4476-197-0x00000000041F0000-0x0000000004231000-memory.dmp

          memory/4476-177-0x00000000041A0000-0x00000000041F0000-memory.dmp

          memory/4476-160-0x0000000004040000-0x00000000040D4000-memory.dmp

          memory/4476-164-0x00000000042A0000-0x0000000004450000-memory.dmp

          memory/4476-154-0x0000000003F80000-0x0000000003F9A000-memory.dmp

          memory/4476-195-0x00000000044C0000-0x0000000004552000-memory.dmp

          memory/4476-194-0x0000000004450000-0x00000000044BC000-memory.dmp

          memory/4476-199-0x00000000046B0000-0x0000000004786000-memory.dmp