Overview

overview

8

Static

static

8

screenconn...up.exe

windows10-2004-x64

8

screenconn...up.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    93s
  • max time network
    123s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/07/2026, 00:15

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General

  • Target
    screenconnect.clientsetup.exe
  • Size 5.4MB
  • Sample260705-aj9rhaft2w
  • SHA256 c6097f0c8548e6549cc790905c1cb7a52b0763194dc41e92f8a026e4c1c0b293
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistenceransomwarerevoked_codesignspyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Signed with revoked ConnectWise certificate 1 IoCs

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

    revoked_codesign
  • Loads dropped DLL 11 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 15 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

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:1536
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\bb506853c756bd96\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:4184
  • 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:5456
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A97A7135F030211FCCC2A21D39A405CB C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4464
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3BB7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240729140 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3412
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5240
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding EB35FBEFE84434F2456BA4C1C87CCB66
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2272
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3088
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3968
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:2556
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:5956
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3904

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e598cf5.rbs
          • Path C:\Config.Msi\e598cf5.rbs
          • Size 10KB
          • SHA256 dc44abd913972d3f890315cdca7883c6972c94a8ffb85140f9a443df288162e5
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          prep_Activatable Class_Hermes_perf.cache
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          MSI3BB7.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\MSI3BB7.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Microsoft.Deployment.WindowsInstaller.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI3BB7.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Core.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI3BB7.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.InstallerActions.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI3BB7.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Windows.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI3BB7.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.ClientSetup.msi
          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\bb506853c756bd96\ScreenConnect.ClientSetup.msi
          • Size 11.1MB
          • SHA256 33fc23393bc8ff2a92df290fb71c608e8550a6ead544f961345eb4b7ee0b7e72
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI9216.tmp
          • Path C:\Windows\Installer\MSI9216.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          metadata-2
          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 38660da1f7247d2e77bf761927753c3ec42baece1064dfe0a922d020ca4e24c9
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          {402527db-9a1a-4aff-85b9-a364b39e2b1c}_OnDiskSnapshotProp
          • Path \??\Volume{0c051f61-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{402527db-9a1a-4aff-85b9-a364b39e2b1c}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 94917dcf0ee8f867339a8a5a670c3ceb37c594bc086826a42eeca4bb4be418f3
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1536-7-0x0000000074F80000-0x000000007573C000-memory.dmp
          Download

          memory/1536-1-0x0000000002C90000-0x0000000002C98000-memory.dmp
          Download

          memory/1536-6-0x0000000005460000-0x000000000560C000-memory.dmp
          Download

          memory/1536-4-0x0000000005380000-0x000000000540C000-memory.dmp
          Download

          memory/1536-0-0x0000000074F92000-0x0000000074F93000-memory.dmp
          Download

          memory/1536-13-0x0000000074F80000-0x000000007573C000-memory.dmp
          Download

          memory/1536-2-0x0000000074F80000-0x000000007573C000-memory.dmp
          Download

          memory/1536-9-0x0000000006010000-0x00000000065CA000-memory.dmp
          Download

          memory/1536-10-0x0000000074F80000-0x000000007573C000-memory.dmp
          Download

          memory/1536-8-0x0000000074F80000-0x000000007573C000-memory.dmp
          Download

          memory/1536-5-0x0000000002DE0000-0x0000000002E02000-memory.dmp
          Download

          memory/1536-3-0x0000000005760000-0x0000000005A52000-memory.dmp
          Download

          memory/2556-273-0x000000000AA90000-0x000000000AB09000-memory.dmp
          Download

          memory/3412-36-0x00000000040B0000-0x00000000040BA000-memory.dmp
          Download

          memory/3412-44-0x00000000063F0000-0x000000000659C000-memory.dmp
          Download

          memory/3412-40-0x00000000061B0000-0x000000000623C000-memory.dmp
          Download

          memory/3412-32-0x0000000004070000-0x000000000409E000-memory.dmp
          Download

          memory/3904-107-0x00000209001E0000-0x00000209002E0000-memory.dmp
          Download

          memory/3904-130-0x0000020903C40000-0x0000020903C60000-memory.dmp
          Download

          memory/3904-122-0x00000209038E0000-0x0000020903900000-memory.dmp
          Download

          memory/3904-154-0x00000209056C0000-0x00000209056E0000-memory.dmp
          Download

          memory/3904-123-0x0000020903E40000-0x0000020903F40000-memory.dmp
          Download

          memory/5456-237-0x00000234EA7B0000-0x00000234EB154000-memory.dmp
          Download