Analysis

  • max time kernel
    150s
  • max time network
    155s
  • 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, 00:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260910-am65sacj41
  • SHA256 9770c864046415dbb348cc4e9242c33711eb9b8c6fda65fa1aa8c373a0326aac
  • 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 21 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 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 11 IoCs
  • Suspicious use of SendNotifyMessage 9 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:3312
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\d7d39fc43ea66932\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:2656
  • 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:4236
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DAE5B623465968E596B2B1472FE2854E C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3296
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5F7B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738343 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4168
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6336.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739156 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1680
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6AE7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741156 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4764
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1260
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7C87F748A6E104B53030040DE2D47160
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2508
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 73F2120D05E1D109ECD56F2360F99691 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3948
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5780
    • C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-dzs3v5-relay.screenconnect.com&p=443&s=16cdbdbf-cd6e-4b58-93de-a18beadee2ae&k=BgIAAACkAABSU0ExAAgAAAEAAQAJ0X7V23D3Zuf2on2mEdeKELa1PeIOsEsUWZHKInpXEPxpK1ttK6imxQvGG1xqpcyqjyfMnTjJZ9K%2bzJMwHpLsbGf%2brLgaK3hppiljmATo2iGC%2bFKnxwV%2fOdiQV3qandO4L6cE2wwmjruEzuddrIEC48g0bIpRc0V2QVVdcMD4u6Ua%2b6GS7LBXksqQ2YIMRv8DJnaGIWcCGRtlnMMEy086g%2fXkNUSVINgZPL8PFAJ4M8iXYsVO9bjmCnYsTeLrhXZmO%2fL28fri1z2gcs9hqCGN%2f45UQtcFbJKMUEuKMSJjOV7%2bWu5ZrR9REETbXXFhb2EFSATbFlpEjtFk8es7oVm3"
      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:4504
      • C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.WindowsClient.exe" "RunRole" "86d37fe7-98e4-435c-aaee-541e2122af97" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1948

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59cccd.rbs

          • Path C:\Config.Msi\e59cccd.rbs
          • Size 214KB
          • SHA256 10838d5d99e2295db86474ed6cd0867fd41b931d2810d77a7426bfa003f82b28
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d7d39fc43ea66932)\system.config
          • Size 962B
          • SHA256 b14be515cfc968645d610123317a521f49c5412636674a8e59c2ed3c99b938ef
          • MD5 SHA1 SHA512 TLSH

          MSI5F7B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5F7B.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5F7B.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5F7B.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5F7B.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5F7B.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6336.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6336.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\d7d39fc43ea66932\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 4b601ac822f312d7e373df4f3e0efa502dd17569161fc72811cc3a910b7888e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSID393.tmp

          • Path C:\Windows\Installer\MSID393.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          21gzicys.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d7d39fc43ea66932)\21gzicys.newcfg
          • Size 882B
          • SHA256 3e87af30ebcd316f8566c60023926692267c7233cd1f8f6d8392cda27ad53347
          • MD5 SHA1 SHA512 TLSH

          40kbmulb.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d7d39fc43ea66932)\40kbmulb.newcfg
          • Size 882B
          • SHA256 4c254b8ccf3a5d16c78c173381d49aac1e97cfab38cce8a55a427beaed23a9d5
          • MD5 SHA1 SHA512 TLSH

          fgjyzxn0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d7d39fc43ea66932)\fgjyzxn0.newcfg
          • Size 882B
          • SHA256 db88673ba96acc859d7102f02aa6f039a65951fbea76a8cd1b0bb559cb44360a
          • MD5 SHA1 SHA512 TLSH

          k53ahmjo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d7d39fc43ea66932)\k53ahmjo.newcfg
          • Size 882B
          • SHA256 42f6f7409189d84bb58392c761bee460a81e98fa83a8802508553e505aa12cef
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d7d39fc43ea66932)\user.config
          • Size 683B
          • SHA256 66bd0e1cb6660613b42f1481dae67d79c0b0f81aa409c0e0031d59350bf6c4d4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d7d39fc43ea66932)\user.config
          • Size 520B
          • SHA256 0a70ba8ef919c90876909b3483dcff55dc3c045b35c4a206def4d5200dda3852
          • MD5 SHA1 SHA512 TLSH

          v5q4t0nn.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d7d39fc43ea66932)\v5q4t0nn.newcfg
          • Size 882B
          • SHA256 f2d68518fdea15df7829361933fb9e18a8aa955ddc078f76028e396b62cb4829
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 efd4555208d78eb265ff56dc49f2db97d4bd012ddf5b9e10c340fde35b156179
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {34ad0d3f-c340-4315-9e5f-f1b9b4d4d8b7}_OnDiskSnapshotProp

          • Path \??\Volume{c4eee659-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{34ad0d3f-c340-4315-9e5f-f1b9b4d4d8b7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 14816b58e447723a5bcc2172ce1c857d1d4dbd68face600b4db34deb5bce8952
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1680-76-0x0000000005BE0000-0x0000000005C08000-memory.dmp

          memory/1948-225-0x000000001CC00000-0x000000001CDCA000-memory.dmp

          memory/1948-218-0x0000000002860000-0x00000000028CC000-memory.dmp

          memory/1948-217-0x0000000000600000-0x00000000006B0000-memory.dmp

          memory/1948-220-0x000000001B8E0000-0x000000001BA90000-memory.dmp

          memory/1948-221-0x00000000026D0000-0x00000000026EA000-memory.dmp

          memory/1948-219-0x00000000029F0000-0x0000000002A86000-memory.dmp

          memory/1948-222-0x000000001BC20000-0x000000001BDA8000-memory.dmp

          memory/3312-7-0x0000000006140000-0x00000000066FA000-memory.dmp

          memory/3312-8-0x0000000074780000-0x0000000074F3C000-memory.dmp

          memory/3312-9-0x0000000074780000-0x0000000074F3C000-memory.dmp

          memory/3312-6-0x0000000074780000-0x0000000074F3C000-memory.dmp

          memory/3312-5-0x00000000059D0000-0x0000000005B80000-memory.dmp

          memory/3312-4-0x00000000059A0000-0x00000000059C8000-memory.dmp

          memory/3312-3-0x0000000005910000-0x00000000059A6000-memory.dmp

          memory/3312-11-0x0000000074780000-0x0000000074F3C000-memory.dmp

          memory/3312-2-0x0000000001A70000-0x0000000001A7C000-memory.dmp

          memory/3312-1-0x0000000001A50000-0x0000000001A58000-memory.dmp

          memory/3312-0-0x0000000074792000-0x0000000074793000-memory.dmp

          memory/4168-34-0x00000000034A0000-0x00000000034CE000-memory.dmp

          memory/4168-46-0x00000000057F0000-0x00000000059A0000-memory.dmp

          memory/4168-42-0x00000000055A0000-0x0000000005636000-memory.dmp

          memory/4168-38-0x0000000003470000-0x000000000347C000-memory.dmp

          memory/4504-198-0x0000000004130000-0x0000000004206000-memory.dmp

          memory/4504-196-0x0000000003BE0000-0x0000000003C21000-memory.dmp

          memory/4504-194-0x0000000003F40000-0x0000000003FD2000-memory.dmp

          memory/4504-193-0x0000000003E30000-0x0000000003E9C000-memory.dmp

          memory/4504-176-0x0000000003DE0000-0x0000000003E30000-memory.dmp

          memory/4504-163-0x0000000003C30000-0x0000000003DE0000-memory.dmp

          memory/4504-159-0x00000000039E0000-0x0000000003A76000-memory.dmp

          memory/4504-153-0x0000000001380000-0x000000000139A000-memory.dmp