Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 00:18

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260910-al25fasfqd
  • SHA256 853ad72568f305c07147a1511bf3c76665f582d20f1d83364875a3cce33e4441
  • 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 2 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.

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 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:\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:4516
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\0af6a3abb4af7515\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:2456
  • 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:5616
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding CDDE9520E226A8707844BCD92A0266C2 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6004
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC21D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240763609 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5424
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC73F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240764765 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1308
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICE16.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240766687 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1724
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2980
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5B57C2D875D2979F04D8B2200875AE34
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4284
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 380166A0E4BB5D9BAB4951A5B17638F6 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1076
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5668
    • C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-rae2qr-relay.screenconnect.com&p=443&s=c0b2c5d7-c20d-4594-8f98-b6076bbd374a&k=BgIAAACkAABSU0ExAAgAAAEAAQBt0Y6Af34A5QkDVtIMU9prpCoNfbfdRYtAClz7%2fzFhd%2fFtTrFxdAdsrEoRxvVTCh7C0P1jFRv3Fxlay7Q8Wem632epSXIf%2b1O8K0psif7VqwDx8WbxT7dDVCL6786gOZzoZht30TYCUbEEfgeeIXDVGSVANn9Bt3uXzlH2Lp4xJnSrNhx2H4d2HQ8%2bfkQjiPFdtICk8DZYCZvETlKo5uduFs%2flPyKWEejFTIsumBNuJx53EuChCikffWB0avLXnOHJgHbQn%2fz%2bdyDgmBJrjg0yPMBy1QmXOKMyC%2bHpGZtfyyZBoDs4MnCp60a7x45ZRfqsZrEteCPBDzoj3iZHQWK4"
      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:2904
      • C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsClient.exe" "RunRole" "5d1b4e61-7238-494f-b5db-a4cb76a0edb6" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1700

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a32bb.rbs

          • Path C:\Config.Msi\e5a32bb.rbs
          • Size 214KB
          • SHA256 72b0e8a8e2a4059e9ce8e6344f17b6ddc834f9573dd0f0082ad364b9f55de627
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\system.config
          • Size 960B
          • SHA256 3f452b843c6afc9e13ed22092f9a45049e150353ec335ddf187bc48691e2599e
          • MD5 SHA1 SHA512 TLSH

          MSIC21D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC21D.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC21D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC21D.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC21D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC21D.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC73F.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC73F.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\0af6a3abb4af7515\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 aa2f2ed612d531cc51915e881b71cf5850b1c9f6258304f932ade3a4ec053571
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI3A9A.tmp

          • Path C:\Windows\Installer\MSI3A9A.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          43nirv2d.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0af6a3abb4af7515)\43nirv2d.newcfg
          • Size 683B
          • SHA256 2c8b3a04248f823bc744e0970e19ae100d435cc75f3b88e8caa6549823544dc4
          • MD5 SHA1 SHA512 TLSH

          r1nookse.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0af6a3abb4af7515)\r1nookse.newcfg
          • Size 884B
          • SHA256 89677135c6f52f14782766876d6eb0866e791f2a48960b73c50fd9b05e35e0d7
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0af6a3abb4af7515)\user.config
          • Size 520B
          • SHA256 05f061c3460be62259f336c9ea3ed851a168a7361285ca0745ed18fd35a7659a
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 2bc734d0c417172c0c5aca4e939f2e5bea570eba60ee5bb8e989b62ee5ff61ab
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {8297d0c3-dc23-45e9-9c01-b776d98651fa}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{8297d0c3-dc23-45e9-9c01-b776d98651fa}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 b0ba8ebf533d81674b551c948b25e2fae1e528b99fcfa749f97c924d62d1195f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1308-77-0x0000000005670000-0x0000000005698000-memory.dmp

          memory/1700-209-0x0000000000F30000-0x0000000000FE0000-memory.dmp

          memory/1700-227-0x000000001C5A0000-0x000000001C728000-memory.dmp

          memory/1700-212-0x000000001C3F0000-0x000000001C5A0000-memory.dmp

          memory/1700-210-0x0000000003040000-0x00000000030AC000-memory.dmp

          memory/1700-225-0x0000000001850000-0x000000000186A000-memory.dmp

          memory/1700-211-0x000000001C0A0000-0x000000001C136000-memory.dmp

          memory/2904-156-0x0000000004730000-0x000000000474A000-memory.dmp

          memory/2904-166-0x0000000004A80000-0x0000000004C30000-memory.dmp

          memory/2904-199-0x0000000004CD0000-0x0000000004D62000-memory.dmp

          memory/2904-179-0x0000000004940000-0x0000000004990000-memory.dmp

          memory/2904-162-0x0000000004830000-0x00000000048C6000-memory.dmp

          memory/2904-203-0x0000000004EC0000-0x0000000004F96000-memory.dmp

          memory/2904-201-0x0000000004990000-0x00000000049D1000-memory.dmp

          memory/2904-198-0x0000000004A00000-0x0000000004A6C000-memory.dmp

          memory/4516-9-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4516-2-0x0000000003A70000-0x0000000003A7C000-memory.dmp

          memory/4516-7-0x0000000006930000-0x0000000006EEA000-memory.dmp

          memory/4516-5-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4516-8-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4516-4-0x0000000003AA0000-0x0000000003AC8000-memory.dmp

          memory/4516-3-0x0000000006080000-0x0000000006116000-memory.dmp

          memory/4516-6-0x00000000061C0000-0x0000000006370000-memory.dmp

          memory/4516-1-0x0000000003A50000-0x0000000003A58000-memory.dmp

          memory/4516-0-0x0000000074592000-0x0000000074593000-memory.dmp

          memory/4516-11-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/4516-13-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/5424-35-0x0000000003380000-0x00000000033AE000-memory.dmp

          memory/5424-47-0x00000000057E0000-0x0000000005990000-memory.dmp

          memory/5424-43-0x0000000005590000-0x0000000005626000-memory.dmp

          memory/5424-39-0x00000000033C0000-0x00000000033CC000-memory.dmp