Analysis

  • max time kernel
    118s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 18:18

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260707-wxqrfaby4v
  • SHA256 7da2a355a86daf8b90342a165a0d3bc228578eed469b2765981e5911ed706327
  • 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.

  • 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.

  • 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.

  • 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 42 IoCs
  • Enumerates connected drives 3 TTPs 48 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
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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 64 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 Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 60 IoCs
  • Suspicious use of SendNotifyMessage 45 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 10 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.

  • Uses Volume Shadow Copy WMI provider

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

  • 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:5116
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Badlisted process makes network request
    • 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:1536
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F069BA82F008FD9086CF542292437A8D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3812
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2B8B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725203 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1844
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI308D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726187 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5688
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI360C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240727593 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3556
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3684
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F210B4C90B524D5A9E8AAF7EB0CF5C0B
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3256
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CC3AC943C4F74261A16B653B64B5D3EB E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3332
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1652
    • C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-w2k6g2-relay.screenconnect.com&p=443&s=a6f02c58-2203-4302-a46d-ec3fb9ef6be2&k=BgIAAACkAABSU0ExAAgAAAEAAQBpqTy4F22fmCL4D3su8sTmYKDOUyt9aEWnGY3qwxnQt8lvXQjPQpuCwZ%2bInTUu7ErWN4Srcroh4m6rBcuHEbhVk%2fXlgg%2bwUUo6vftA6QLyq78AM1X7pNZQi7lmxOXRiwpwg8GHJ05a7n%2boT1JXMt%2f6nZ50zJuBXSqkHm8ZdFlJi%2bNVJ7gkNHXVpI%2fRWFbwW9EURXSmSA27d3qgeIZ5EtYKWj5oKmhyAL5XQyvmOaf8hFgU3IWm7R3TRNffKxnu9xCJHl%2fIhKjlcW0VCf%2flQcPcBtgtyY%2fNTyrjIo%2fmrVQoKOOjRBMJRHFYr1rndelnA4oR4V8tV5727i41bA0g3yeq&t=Cyno-Ys"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5500
      • C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsClient.exe" "RunRole" "7b345746-4d78-4601-b1db-fa175d3b0324" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4492
      • C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsClient.exe" "RunRole" "b840e0f0-59cb-4170-ae6c-7e94a88a7bd5" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5900
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4148
      • 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:4328
    • 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:2936
    • 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:5792

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e597ca9.rbs

          • Path C:\Config.Msi\e597ca9.rbs
          • Size 214KB
          • SHA256 00b17a4427a1d1018a1927b4767522184568ff0a7e80d03b4f6307c996e8deb4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9a39a0fe2b0ade60)\system.config
          • Size 966B
          • SHA256 2dfb98d2f4e422db0d202f923807ecd58fa200a1cd4538817579ed62a7259e97
          • 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

          MSI2B8B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2B8B.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2B8B.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2B8B.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2B8B.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2B8B.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI308D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI308D.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8331.tmp

          • Path C:\Windows\Installer\MSI8331.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e597ca8.msi

          • Path C:\Windows\Installer\e597ca8.msi
          • Size 9.8MB
          • SHA256 7da2a355a86daf8b90342a165a0d3bc228578eed469b2765981e5911ed706327
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ozkoataa.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9a39a0fe2b0ade60)\ozkoataa.newcfg
          • Size 881B
          • SHA256 ceca55163f6a740787c199cc518ea91774cf04e9b1bf118f5b2a40bfc0cd0ec3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9a39a0fe2b0ade60)\user.config
          • Size 520B
          • SHA256 47f59f01e5c2d603982dd55392452e6fcd07d5319b075e7b8d235da8d089d15d
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9a39a0fe2b0ade60)\user.config
          • Size 683B
          • SHA256 6cbd139c8b6c96cadae4f022dcc59207e3b9c25c814777aeacb8d90d26b6ff1b
          • MD5 SHA1 SHA512 TLSH

          {3cedeafa-efeb-48f1-a29e-4ebcd07b4e51}_OnDiskSnapshotProp

          • Path \??\Volume{b93d8daa-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{3cedeafa-efeb-48f1-a29e-4ebcd07b4e51}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 8185e8fa0bf96baccb7e79ae80594e5458ddd0792a54bc1899f7e47b44efbe86
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1536-212-0x00000203C4A50000-0x00000203C53F4000-memory.dmp

          memory/1536-213-0x00000203C2680000-0x00000203C274D000-memory.dmp

          memory/1844-27-0x0000000005400000-0x0000000005494000-memory.dmp

          memory/1844-31-0x00000000057B0000-0x0000000005960000-memory.dmp

          memory/1844-32-0x0000000005F20000-0x00000000064DA000-memory.dmp

          memory/1844-23-0x00000000032F0000-0x00000000032FC000-memory.dmp

          memory/1844-19-0x00000000032B0000-0x00000000032DE000-memory.dmp

          memory/2936-430-0x0000022680700000-0x00000226809BC000-memory.dmp

          memory/2936-402-0x0000022680700000-0x00000226809BC000-memory.dmp

          memory/4492-208-0x000000001B950000-0x000000001BB00000-memory.dmp

          memory/4492-209-0x0000000002820000-0x000000000283A000-memory.dmp

          memory/4492-210-0x000000001BC90000-0x000000001BE18000-memory.dmp

          memory/4492-205-0x000000001B2C0000-0x000000001B32C000-memory.dmp

          memory/4492-206-0x000000001B700000-0x000000001B794000-memory.dmp

          memory/4492-204-0x0000000000640000-0x00000000006EE000-memory.dmp

          memory/5500-181-0x00000000043E0000-0x000000000444C000-memory.dmp

          memory/5500-141-0x00000000017C0000-0x00000000017DA000-memory.dmp

          memory/5500-184-0x0000000004160000-0x00000000041A1000-memory.dmp

          memory/5500-186-0x0000000004640000-0x0000000004716000-memory.dmp

          memory/5500-164-0x0000000004110000-0x0000000004160000-memory.dmp

          memory/5500-151-0x0000000004230000-0x00000000043E0000-memory.dmp

          memory/5500-147-0x0000000003FE0000-0x0000000004074000-memory.dmp

          memory/5500-182-0x0000000004450000-0x00000000044E2000-memory.dmp

          memory/5688-62-0x0000000005200000-0x0000000005228000-memory.dmp

          memory/5792-237-0x00000205001E0000-0x00000205002E0000-memory.dmp

          memory/5792-243-0x0000020503A10000-0x0000020503A30000-memory.dmp

          memory/5792-282-0x00000205141E0000-0x0000020514200000-memory.dmp

          memory/5792-244-0x0000020513E50000-0x0000020513F50000-memory.dmp

          memory/5792-246-0x0000020503C70000-0x0000020503C90000-memory.dmp