Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/08/2026, 00:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260823-alc6bagh34
  • SHA256 a9e89c283685ecb2bba3e80e996e094bec2099775022e677a1d88dc61b150681
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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:5556
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\222e4f4b29b9c24c\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:628
  • 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:4368
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 8C77B98FABD4073EF206CF298D129599 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:52
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752515 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2544
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9A91.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240753328 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1076
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI936A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240817093 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5176
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1372
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8A0127601DF01DAE31095228653C2C18
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:716
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8801CD69FEF9C3F02C9B888750D29A62 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4620
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2640
    • C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-mwyozk-relay.screenconnect.com&p=443&s=85e2b09c-7ddd-4f26-8473-484464f76d80&k=BgIAAACkAABSU0ExAAgAAAEAAQCNAoU9Z1G2Vv5AIKhX8o4qLC0z4IBdmb6%2fKjQjXpxElIw8PVmhBmjviov2%2b5pTl3CDQecwYCdaEvsO2M1ERNM26u%2bIadZiSC2aFUZOBUYK%2bwYaF0GoisHNwpLGsYKjxO%2b94gBHg11b6q29hmDft4Q0F6pDeBMWkfJMpV9FtRODM4wx4TU%2fkgQT8uA5bYz9z26YJvPxD6V2fivdQBskaj0rGfYCpcGrM3l4NFXHpnZdMNRVdq%2fMB4TbCVNhMRAKLOAblFhq0znV73ybWl24T4kScgAL%2fI3qkggMXeYqVkNUblo2dRaeyqSptrDdAbPpvb6BzymapnJUgw3TBNdNMau2"
      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:1644
      • C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsClient.exe" "RunRole" "0e1f4f16-11f6-4503-bdaf-ad8626e353e2" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4972
      • C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsClient.exe" "RunRole" "7866b0e5-2109-4452-a5dc-2e06c0bd3cf5" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1740

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5ad803.rbs

          • Path C:\Config.Msi\e5ad803.rbs
          • Size 214KB
          • SHA256 a20508d6ed62fd1aa9d81811ab4c804e7d2cb12bc73a6e6d5f1da18bbd9feba0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (222e4f4b29b9c24c)\system.config
          • Size 960B
          • SHA256 5a223cfcfb4557c97e02668e7fb06c3e64535e1fa77528f92abe323087fbe344
          • MD5 SHA1 SHA512 TLSH

          MSI96F7.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9A91.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9A91.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\222e4f4b29b9c24c\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 06435c090f7205f4ffd6da093055857ce8ea6e43508a53ee280cef0723f09391
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIDDCF.tmp

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

          qmh0cuk1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (222e4f4b29b9c24c)\qmh0cuk1.newcfg
          • Size 882B
          • SHA256 84ee57df65d9853096f3d66903fc8dcf2f305cc159fc3e572a9ecee1781249a5
          • MD5 SHA1 SHA512 TLSH

          sxyynynz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (222e4f4b29b9c24c)\sxyynynz.newcfg
          • Size 683B
          • SHA256 f084d029b17dff8e2935905103645b1f3ccd145e26e423af7691f3b57413261f
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (222e4f4b29b9c24c)\user.config
          • Size 520B
          • SHA256 cad4bcacee5478bb03166f8ee12206890b029f24b35c979994083ef8dc41a021
          • MD5 SHA1 SHA512 TLSH

          memory/1076-77-0x00000000051A0000-0x00000000051C8000-memory.dmp

          memory/1644-178-0x0000000004700000-0x0000000004750000-memory.dmp

          memory/1644-197-0x00000000047C0000-0x000000000482C000-memory.dmp

          memory/1644-155-0x0000000004240000-0x000000000425A000-memory.dmp

          memory/1644-200-0x0000000004750000-0x0000000004791000-memory.dmp

          memory/1644-161-0x0000000004300000-0x0000000004394000-memory.dmp

          memory/1644-165-0x0000000004550000-0x0000000004700000-memory.dmp

          memory/1644-202-0x0000000004AC0000-0x0000000004B96000-memory.dmp

          memory/1644-198-0x00000000048D0000-0x0000000004962000-memory.dmp

          memory/1740-228-0x0000000001520000-0x0000000001561000-memory.dmp

          memory/2544-39-0x0000000005150000-0x000000000515C000-memory.dmp

          memory/2544-43-0x0000000005200000-0x0000000005294000-memory.dmp

          memory/2544-35-0x0000000005110000-0x000000000513E000-memory.dmp

          memory/2544-47-0x0000000005450000-0x0000000005600000-memory.dmp

          memory/4972-220-0x0000000000A70000-0x0000000000B1E000-memory.dmp

          memory/4972-226-0x000000001C0B0000-0x000000001C238000-memory.dmp

          memory/4972-225-0x0000000002D70000-0x0000000002D8A000-memory.dmp

          memory/4972-224-0x000000001BD70000-0x000000001BF20000-memory.dmp

          memory/4972-222-0x000000001BB20000-0x000000001BBB4000-memory.dmp

          memory/4972-221-0x000000001B6B0000-0x000000001B71C000-memory.dmp

          memory/5556-8-0x0000000074CE0000-0x000000007549C000-memory.dmp

          memory/5556-4-0x0000000005F20000-0x0000000005F48000-memory.dmp

          memory/5556-2-0x00000000038B0000-0x00000000038BC000-memory.dmp

          memory/5556-12-0x0000000074CE0000-0x000000007549C000-memory.dmp

          memory/5556-1-0x0000000003840000-0x0000000003848000-memory.dmp

          memory/5556-3-0x0000000005E70000-0x0000000005F04000-memory.dmp

          memory/5556-11-0x0000000074CE0000-0x000000007549C000-memory.dmp

          memory/5556-9-0x0000000074CE0000-0x000000007549C000-memory.dmp

          memory/5556-5-0x0000000005FD0000-0x0000000006180000-memory.dmp

          memory/5556-6-0x0000000074CE0000-0x000000007549C000-memory.dmp

          memory/5556-7-0x0000000006740000-0x0000000006CFA000-memory.dmp

          memory/5556-0-0x0000000074CF2000-0x0000000074CF3000-memory.dmp