Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 14:29

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260723-rtj29sywe1
  • SHA256 864d9b113d9b041af3b0d9952a614ae38b15a44f1606ffb5f395d85d3dc93fe4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 IoCs

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

  • 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.

  • Enumerates connected drives 3 TTPs 46 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
  • 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.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 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:3648
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\189f37b551f245c6\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:5624
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • 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:1984
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E84155D9F606065B5CAD1F42F5D93E04 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5048
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732875 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4912
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4CB0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733390 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4584
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5164.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734625 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5928
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2992
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 503F0DB36389B9CFA682BE59A588F826
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5684
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 460F2216B7C78D0A18DE9D4FF619D06E E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:624
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3268
    • C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-mx0d4w-relay.screenconnect.com&p=443&s=22577ff4-3772-4c8b-beb0-5db2b058faa6&k=BgIAAACkAABSU0ExAAgAAAEAAQARAuPsSnjORbZ7mcb5RUF6Abin0urh77Wz3XEbK1rCQhFfSiRu0mQl%2fRgm9O1oC2oLOuIvmIV8SbwMMmGloBNnxLpEqT%2fuLLP%2fjPupcLnXL6AMGaw%2bAjG2Zm9HWQbRg7dvx1xYrNzpPtS23nEj0chVKzyUAey6NypOtcvuWQe1Rj63mR5GUY5%2bBXxIEHrIn4pXd910iREqQGP0uk4HuPlc9mFSvOuXxu5%2fyWVG8LxZAfnKQ6MX%2fhHIgesb0YZn6Qff7rX%2bueJF1GTZOfKnsWBUySSiEs5y5ycniOo%2b5hoJNHzikRZ0BY48CieUI835znXG2G7jJP7X2P55x%2fOitJCs"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4652
      • C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsClient.exe" "RunRole" "04335c69-e48c-4da8-a45a-f6a512f5749c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4508
      • C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsClient.exe" "RunRole" "e863ef35-2ca6-445b-9347-6ced21cff455" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2916

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59a119.rbs

          • Path C:\Config.Msi\e59a119.rbs
          • Size 214KB
          • SHA256 b37042949015750c582d4a010d4ddaefdb81bd95ba1e71ae4d205eb355512c9e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (189f37b551f245c6)\system.config
          • Size 964B
          • SHA256 609ecfc39aaa83e7934896653943413dd388ea6d01c623581a4779cf5b5d166f
          • MD5 SHA1 SHA512 TLSH

          MSI4A4E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4CB0.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4CB0.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\189f37b551f245c6\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 6f764fa8b9de42226acdbb40ec7ab7eaf0dfd9e654d310572b6482e429af9d75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA734.tmp

          • Path C:\Windows\Installer\MSIA734.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          k4zq1m55.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (189f37b551f245c6)\k4zq1m55.newcfg
          • Size 683B
          • SHA256 a4ce99df5ed24b148502933158ebf64bea0f0894a3445d5d51576ab9991b5fe6
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (189f37b551f245c6)\user.config
          • Size 520B
          • SHA256 1b15f9b97c131bbdb953ab8829fcfa4e0712426ded68ad71d703c141e6762ec4
          • MD5 SHA1 SHA512 TLSH

          zgz2j0ow.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (189f37b551f245c6)\zgz2j0ow.newcfg
          • Size 881B
          • SHA256 9c30a01ab66bade9587de2d3b91bf0ff18badf1df4a3ddb277aba51296de4fe3
          • MD5 SHA1 SHA512 TLSH

          memory/3648-4-0x0000000006570000-0x0000000006604000-memory.dmp

          memory/3648-2-0x0000000002700000-0x000000000270C000-memory.dmp

          memory/3648-1-0x00000000026D0000-0x00000000026D8000-memory.dmp

          memory/3648-3-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/3648-12-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/3648-10-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/3648-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

          memory/3648-5-0x0000000006610000-0x0000000006638000-memory.dmp

          memory/3648-8-0x0000000006E50000-0x000000000740A000-memory.dmp

          memory/3648-9-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/3648-6-0x00000000066E0000-0x0000000006890000-memory.dmp

          memory/3648-7-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/4508-225-0x000000001C3D0000-0x000000001C558000-memory.dmp

          memory/4508-224-0x00000000016B0000-0x00000000016CA000-memory.dmp

          memory/4508-223-0x000000001C090000-0x000000001C240000-memory.dmp

          memory/4508-222-0x000000001BE40000-0x000000001BED4000-memory.dmp

          memory/4508-219-0x0000000000D70000-0x0000000000E1E000-memory.dmp

          memory/4508-220-0x000000001B8F0000-0x000000001B95C000-memory.dmp

          memory/4584-77-0x0000000005520000-0x0000000005548000-memory.dmp

          memory/4652-177-0x0000000004980000-0x00000000049D0000-memory.dmp

          memory/4652-160-0x0000000004570000-0x0000000004604000-memory.dmp

          memory/4652-154-0x0000000001E30000-0x0000000001E4A000-memory.dmp

          memory/4652-164-0x00000000047D0000-0x0000000004980000-memory.dmp

          memory/4652-201-0x0000000004CD0000-0x0000000004DA6000-memory.dmp

          memory/4652-199-0x0000000004780000-0x00000000047C1000-memory.dmp

          memory/4652-197-0x0000000004AE0000-0x0000000004B72000-memory.dmp

          memory/4652-196-0x00000000049D0000-0x0000000004A3C000-memory.dmp

          memory/4912-35-0x0000000003D00000-0x0000000003D2E000-memory.dmp

          memory/4912-43-0x0000000005E30000-0x0000000005EC4000-memory.dmp

          memory/4912-39-0x0000000003D50000-0x0000000003D5C000-memory.dmp

          memory/4912-47-0x0000000006080000-0x0000000006230000-memory.dmp