Analysis

  • max time kernel
    150s
  • max time network
    99s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 12:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 5.4MB
  • Sample260709-phv92sbv2y
  • SHA256 3de718fc4417ffc99d9b9f4e2a9a38823fdb968dfb13d44cd411c1cabafdb0d7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Signed with revoked ConnectWise certificate 1 IoCs

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

  • Loads dropped DLL 11 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 Program Files directory 17 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.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 5 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:2652
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\382da84382b0d937\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:6088
  • 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:1788
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 96AA78A73307BB2DCE084CBFCBB9FE43 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4080
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI29D5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724546 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6140
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5052
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 885384078AF4C81D402762DCA314B8ED
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1588
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1800

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5982e3.rbs

          • Path C:\Config.Msi\e5982e3.rbs
          • Size 10KB
          • SHA256 96f26a8237809b70a63ff6f1859c75936b5bad54a19cb8fdb669821248261892
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI29D5.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI29D5.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI29D5.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI29D5.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI29D5.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI29D5.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\382da84382b0d937\ScreenConnect.ClientSetup.msi
          • Size 12.8MB
          • SHA256 3be77a844c44b9706d407905c53ec4382be39b8c8d99828ed010f81d8ee0f585
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI892C.tmp

          • Path C:\Windows\Installer\MSI892C.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 155f118266d10652e43178d6125d14e75c62d0f6cee7e881dac7a50766dca422
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {ba5a4507-ca36-4273-85db-e57adf370acf}_OnDiskSnapshotProp

          • Path \??\Volume{aa187f21-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{ba5a4507-ca36-4273-85db-e57adf370acf}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 2af57e0f79356fee4262c563fd47d29e3abc128251dcf7dd946270604fd62927
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2652-6-0x0000000005EE0000-0x000000000608C000-memory.dmp

          memory/2652-4-0x0000000005E20000-0x0000000005EAC000-memory.dmp

          memory/2652-10-0x0000000074940000-0x00000000750FC000-memory.dmp

          memory/2652-9-0x0000000074940000-0x00000000750FC000-memory.dmp

          memory/2652-8-0x0000000074940000-0x00000000750FC000-memory.dmp

          memory/2652-1-0x0000000001FE0000-0x0000000001FE8000-memory.dmp

          memory/2652-7-0x0000000006970000-0x0000000006F2A000-memory.dmp

          memory/2652-12-0x0000000074940000-0x00000000750FC000-memory.dmp

          memory/2652-2-0x00000000060C0000-0x00000000063B2000-memory.dmp

          memory/2652-0-0x0000000074952000-0x0000000074953000-memory.dmp

          memory/2652-3-0x0000000074940000-0x00000000750FC000-memory.dmp

          memory/2652-5-0x0000000005EB0000-0x0000000005ED2000-memory.dmp

          memory/6140-36-0x0000000005E90000-0x0000000005E9A000-memory.dmp

          memory/6140-44-0x00000000061A0000-0x000000000634C000-memory.dmp

          memory/6140-40-0x0000000005F60000-0x0000000005FEC000-memory.dmp

          memory/6140-32-0x0000000005E50000-0x0000000005E7E000-memory.dmp