Analysis

  • max time kernel
    43s
  • max time network
    160s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/06/2026, 18:13

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260628-wt7wjsbs2s
  • SHA256 22ca51fdef3f2da7c34576e1101a88d8b52faae61775eb10717b4dd4ca5f975e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 6 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Loads dropped DLL 30 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3560
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AED82D36BC140BD2C46CEF7D3853D008 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5424
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4E93.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734078 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5348
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI53A5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735187 8 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5216
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5A3E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736890 15 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2720
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1628
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9C99C5816D3861A8DB6A3701AFAF71E4
        2⤵
          PID:4336
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3828
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
          PID:2816
          • C:\Windows\explorer.exe
            explorer.exe /LOADSAVEDWINDOWS
            2⤵
              PID:1460
          • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
            "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
            1⤵
              PID:5908
            • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
              "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
              1⤵
                PID:4816

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    e59a1c5.rbs

                    • Path C:\Config.Msi\e59a1c5.rbs
                    • Size 10KB
                    • SHA256 ea1e36b9c73d96ec9d2bf1fc7a55ee0cc489b16d8865455f11bab523fb4866d0
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
                    • Size 727B
                    • SHA256 290baf7431b042bde83ed199446938f4aabec674599361d52f6e982e6094f8a5
                    • MD5 SHA1 SHA512 TLSH

                    57C8EDB95DF3F0AD4EE2DC2B8CFD4157

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
                    • Size 342B
                    • SHA256 120bf1227255787ee761b5e271ceaab3455f0deaa5ca750480d2b9d52d36029a
                    • MD5 SHA1 SHA512 TLSH

                    8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
                    • Size 404B
                    • SHA256 3e34155ca2d6915152afccc25098327767875680a225ce9a2e706a0a6801a57c
                    • MD5 SHA1 SHA512 TLSH

                    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 603B
                    • SHA256 b346273b0f3e13afaa9f07d97248343c45a667a5e097d1198a449a4de187aebb
                    • MD5 SHA1 SHA512 TLSH

                    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

                    MSI4E93.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI4E93.tmp
                    • Size 1.1MB
                    • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Microsoft.Deployment.WindowsInstaller.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI4E93.tmp-\Microsoft.Deployment.WindowsInstaller.dll
                    • Size 172KB
                    • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    ScreenConnect.Core.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI4E93.tmp-\ScreenConnect.Core.dll
                    • Size 567KB
                    • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    ScreenConnect.InstallerActions.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI4E93.tmp-\ScreenConnect.InstallerActions.dll
                    • Size 24KB
                    • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    ScreenConnect.Windows.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI4E93.tmp-\ScreenConnect.Windows.dll
                    • Size 1.7MB
                    • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    CustomAction.config

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI53A5.tmp-\CustomAction.config
                    • Size 234B
                    • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
                    • MD5 SHA1 SHA512 TLSH

                    ScreenConnect.WindowsInstaller.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\MSI53A5.tmp-\ScreenConnect.WindowsInstaller.dll
                    • Size 137KB
                    • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    MSIDF99.tmp

                    • Path C:\Windows\Installer\MSIDF99.tmp
                    • Size 202KB
                    • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    e59a1c4.msi

                    • Path C:\Windows\Installer\e59a1c4.msi
                    • Size 9.8MB
                    • SHA256 22ca51fdef3f2da7c34576e1101a88d8b52faae61775eb10717b4dd4ca5f975e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    metadata-2

                    • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                    • Size 26.1MB
                    • SHA256 0d6f85bb18a8ae9e4886027224dfa85b3f714109252691378311686c384e8981
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    {7a08f62d-6ba2-41d9-b830-69c141351950}_OnDiskSnapshotProp

                    • Path \??\Volume{fc7fe687-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{7a08f62d-6ba2-41d9-b830-69c141351950}_OnDiskSnapshotProp
                    • Size 6KB
                    • SHA256 d44c3b817276ecea081f81d7292ce0719056de048401664dde59d2117f33d25c
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/5216-67-0x00000000054B0000-0x00000000054D8000-memory.dmp

                    memory/5348-37-0x0000000005DA0000-0x000000000635A000-memory.dmp

                    memory/5348-36-0x0000000005630000-0x00000000057E0000-memory.dmp

                    memory/5348-32-0x00000000033D0000-0x0000000003464000-memory.dmp

                    memory/5348-28-0x0000000003310000-0x000000000331C000-memory.dmp

                    memory/5348-24-0x00000000032D0000-0x00000000032FE000-memory.dmp

                    memory/5908-131-0x000002B9801E0000-0x000002B9802E0000-memory.dmp

                    memory/5908-143-0x000002B983DB0000-0x000002B983DD0000-memory.dmp

                    memory/5908-139-0x000002B983A20000-0x000002B983A40000-memory.dmp

                    memory/5908-159-0x000002B9846B0000-0x000002B9846D0000-memory.dmp

                    memory/5908-140-0x000002B983E50000-0x000002B983F50000-memory.dmp

                    memory/5908-130-0x000002B9801E0000-0x000002B9802E0000-memory.dmp