Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/07/2026, 18:24

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260716-w2dbxaa14j
  • SHA256 d306c730288bf58aa75f1818474b0b1624d11b412d13fbe563c9a65ae8e9390c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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.

  • 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 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
  • 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 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 9 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:1384
  • 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:2588
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 386146135C2699B4CF955786C66AE18B C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5504
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI82C3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240747500 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1008
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8738.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748375 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5296
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE661.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240772859 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5964
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2912
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3F8146952D1DC9112E523D176394FB99
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2924
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding BBEC79791570FD6FF4CCE727637EC410 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4268
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3720
    • C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-qm6o50-relay.screenconnect.com&p=443&s=5d85f419-9d27-4e72-b010-94004f9bebaf&k=BgIAAACkAABSU0ExAAgAAAEAAQDdhgR5cP6czOCGtzZvX91VhxLKP2XCo8uO6ysCUfP7JfuNzf21yxODCqViyTeUhL0t8ilGknN0i2xx%2fNHpzTPaL%2fWKsHytynfWWvKb%2f60ZsXszjENzEgDPvgjF0isHTUfdubeDqZE1xXImjEcKXbrFs3J0gp6Pq%2bj2%2bQ9m3bxt6HOc2bV%2by6Dk84IYHgTxPpxLWiEYnDGVYPp8akd%2fbINq5bSbjakFH%2bzkly8SRAJFVtb981b1IdNTkGlO4lqPxrehsJr%2bi7maI0x9KJe4fmVJuOZ79BrHBAPEQ5rd6VgujYd2c%2flRLWKo9D0CQLflew3iZiPMbwALyzsiUQGT%2bCzc"
      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:5960
      • C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsClient.exe" "RunRole" "300f6472-1b6c-4637-9c88-f12eb0e1047b" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1348
      • C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsClient.exe" "RunRole" "01d20dc3-78da-4faf-a871-49bf497cb7d6" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5844

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a447d.rbs

          • Path C:\Config.Msi\e5a447d.rbs
          • Size 214KB
          • SHA256 a0bee459e748d2a9accfa3050b3522f12cb574cea1771bc7d9d00c5d4dd738a7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ed8f498629c5b317)\system.config
          • Size 966B
          • SHA256 065f9d307689f713e9131e958740cc75c69844c2fa904afd1bad68e020427ff1
          • MD5 SHA1 SHA512 TLSH

          MSI82C3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI82C3.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI82C3.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI82C3.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI82C3.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI82C3.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8738.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8738.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI4902.tmp

          • Path C:\Windows\Installer\MSI4902.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a447c.msi

          • Path C:\Windows\Installer\e5a447c.msi
          • Size 9.8MB
          • SHA256 d306c730288bf58aa75f1818474b0b1624d11b412d13fbe563c9a65ae8e9390c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ed8f498629c5b317)\user.config
          • Size 683B
          • SHA256 d778e3c2145674b90907f601b577b0ef08f41bb53b86e262ebdec4718f2b84b0
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ed8f498629c5b317)\user.config
          • Size 520B
          • SHA256 6585361cc0012ccb6547a622d586b53a2e9f820ae0f84cdd0db045650df1cce0
          • MD5 SHA1 SHA512 TLSH

          xr4ilwtz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ed8f498629c5b317)\xr4ilwtz.newcfg
          • Size 882B
          • SHA256 35b22592da09518e912a2fab8fb80a20d99f46c0ddd5eaa5e26f768b17b503be
          • MD5 SHA1 SHA512 TLSH

          {c5f0f26d-2e4e-439e-b4ce-aa1c195b7df2}_OnDiskSnapshotProp

          • Path \??\Volume{6392210f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{c5f0f26d-2e4e-439e-b4ce-aa1c195b7df2}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 fc83af828921d500d0d5c54e869138ac491c7f66b1836d4e4b635a647a9a3dfd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1008-34-0x0000000006330000-0x00000000068EA000-memory.dmp

          memory/1008-25-0x0000000002B40000-0x0000000002B4C000-memory.dmp

          memory/1008-33-0x0000000005BC0000-0x0000000005D70000-memory.dmp

          memory/1008-21-0x00000000058A0000-0x00000000058CE000-memory.dmp

          memory/1008-29-0x0000000005970000-0x0000000005A04000-memory.dmp

          memory/1348-210-0x000000001C1B0000-0x000000001C338000-memory.dmp

          memory/1348-209-0x0000000002FD0000-0x0000000002FEA000-memory.dmp

          memory/1348-208-0x000000001BE70000-0x000000001C020000-memory.dmp

          memory/1348-207-0x000000001BC20000-0x000000001BCB4000-memory.dmp

          memory/1348-205-0x0000000003040000-0x00000000030AC000-memory.dmp

          memory/1348-204-0x0000000000BB0000-0x0000000000C5E000-memory.dmp

          memory/5296-64-0x00000000052C0000-0x00000000052E8000-memory.dmp

          memory/5960-186-0x0000000004F60000-0x0000000005036000-memory.dmp

          memory/5960-141-0x00000000046E0000-0x00000000046FA000-memory.dmp

          memory/5960-151-0x0000000004A40000-0x0000000004BF0000-memory.dmp

          memory/5960-164-0x00000000049F0000-0x0000000004A40000-memory.dmp

          memory/5960-147-0x00000000047A0000-0x0000000004834000-memory.dmp

          memory/5960-184-0x0000000004BF0000-0x0000000004C31000-memory.dmp

          memory/5960-182-0x0000000004D70000-0x0000000004E02000-memory.dmp

          memory/5960-181-0x0000000004C60000-0x0000000004CCC000-memory.dmp