Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 18:47

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample260916-xfbrmacf74
  • SHA256 c3472c794fb3969438e5945bf790a4b079bb7c71e42ac8f05c35aa56a770e4c3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 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 12 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 10 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:5916
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\5b5c3d922909ad45\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:3228
  • 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:5744
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AD979D09AFA2945463EF520054DB8861 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5456
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4FAD.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734546 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5976
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI550D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735531 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4480
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4DB6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240799296 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1392
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6E474BC954A9AB7726D75EEAD7CFB10D
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4580
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C8B38C3B8AEAE796F4904EC8C9999B2B E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6080
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3912
    • C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ly3eiv-relay.screenconnect.com&p=443&s=6e758d82-6b19-497a-aaa1-d3e3d97028f6&k=BgIAAACkAABSU0ExAAgAAAEAAQBpbcUZIuJT9I1OjmQ0h8WIc%2f4bvmP%2fW3utSb89Yo6BN%2fKmsOSMYWaM3q0V6OSUGkpeKhw3D1l8U%2f%2fXGbEJSZAdgepbS0WxL8ujVbJzYREiFpXRMWYiU8SJKuMCMNjH8juiDhaEqpe8yvl1Fqy8VRz0x5r%2fER0ucWL80BfmHoQdkHHnz53DwsHWxO8d1k8cfsWLPY0Nhx0IoXNF97s0nXbV4fo1H01UwcGv8RJtuGHO9ffgaQBhDcoJX0%2fs9Zl4pBFNz%2f8aQI1JanI95It7iC1j54qdVI1PASXu4t7RRslaYTALpbjBiUvIb0OFMVsSDad%2bDpf3hVqGMCGmrqRxbSrb&c=Andrea&c=Guerrero&c=&c=&c=&c=&c=&c="
      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:4340
      • C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.WindowsClient.exe" "RunRole" "46cb88b9-6195-40f4-948c-689fe5f7536d" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4984
      • C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.WindowsClient.exe" "RunRole" "2c3c2dc6-37e9-4cb5-844b-3cf9c2bf2dad" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4692

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a9dd8.rbs

          • Path C:\Config.Msi\e5a9dd8.rbs
          • Size 214KB
          • SHA256 d675b1639cf0608678b6f84e0eefc483da37534c2140bd86024679a5961d39fb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (5b5c3d922909ad45)\system.config
          • Size 962B
          • SHA256 a79a334bd89f49e4ef77cd6ba56df0d439f068532e10bc42d95ee4f4553cc910
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 62788505d34318ddb816874703b2939280da3183f7955b75bc186575f2070b72
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 b5d2f4a1e5f7331ce24024ffc84ae006253a05802fe7eb02380e30217ca1b725
          • MD5 SHA1 SHA512 TLSH

          MSI4FAD.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FAD.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FAD.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FAD.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FAD.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FAD.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI550D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI550D.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\5b5c3d922909ad45\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 92f83a56ffc4e13efba33657501f962d313fc2e3d6263566ddcaf653aa3cfc36
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA7AC.tmp

          • Path C:\Windows\Installer\MSIA7AC.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          fdeovhj4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5b5c3d922909ad45)\fdeovhj4.newcfg
          • Size 881B
          • SHA256 98fc60e8dcbf34404f58c67f3fe581cba39ef693f85f7ca75453b8c6ef348053
          • MD5 SHA1 SHA512 TLSH

          gr5qx3tb.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5b5c3d922909ad45)\gr5qx3tb.newcfg
          • Size 881B
          • SHA256 4572d2bbf12101862b9dd3db1d28f0b4c410262cd6eab2b01b775e601e29a871
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5b5c3d922909ad45)\user.config
          • Size 520B
          • SHA256 328b5551a43846a58fa919e39fb0e6018b3b55309a5720283039560459463cb8
          • MD5 SHA1 SHA512 TLSH

          ysduh5xb.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5b5c3d922909ad45)\ysduh5xb.newcfg
          • Size 683B
          • SHA256 f5e1e3b7360587e265a060853738bae4dbfc467c7811b89308326f0ae5f3171c
          • MD5 SHA1 SHA512 TLSH

          memory/4340-207-0x0000000004B60000-0x0000000004C36000-memory.dmp

          memory/4340-205-0x0000000004610000-0x0000000004651000-memory.dmp

          memory/4340-170-0x0000000004650000-0x0000000004830000-memory.dmp

          memory/4340-203-0x0000000004970000-0x0000000004A02000-memory.dmp

          memory/4340-166-0x0000000004310000-0x000000000446A000-memory.dmp

          memory/4340-160-0x0000000004180000-0x00000000041B0000-memory.dmp

          memory/4340-202-0x00000000048D0000-0x000000000496E000-memory.dmp

          memory/4340-176-0x00000000045C0000-0x0000000004610000-memory.dmp

          memory/4480-80-0x0000000005920000-0x0000000005988000-memory.dmp

          memory/4692-232-0x0000000000A30000-0x0000000000A71000-memory.dmp

          memory/4984-230-0x00000000025D0000-0x0000000002600000-memory.dmp

          memory/4984-225-0x0000000000260000-0x00000000003F6000-memory.dmp

          memory/4984-227-0x000000001B630000-0x000000001B78A000-memory.dmp

          memory/4984-226-0x0000000002780000-0x000000000281E000-memory.dmp

          memory/4984-228-0x000000001B970000-0x000000001BB50000-memory.dmp

          memory/4984-229-0x000000001BB50000-0x000000001BCD8000-memory.dmp

          memory/4984-231-0x0000000000D90000-0x0000000000DD1000-memory.dmp

          memory/5916-5-0x0000000005F40000-0x0000000005FA8000-memory.dmp

          memory/5916-6-0x00000000061A0000-0x0000000006380000-memory.dmp

          memory/5916-0-0x0000000074992000-0x0000000074993000-memory.dmp

          memory/5916-3-0x0000000006040000-0x000000000619A000-memory.dmp

          memory/5916-2-0x0000000003900000-0x000000000390C000-memory.dmp

          memory/5916-12-0x0000000074980000-0x000000007513C000-memory.dmp

          memory/5916-1-0x0000000002050000-0x0000000002058000-memory.dmp

          memory/5916-4-0x0000000074980000-0x000000007513C000-memory.dmp

          memory/5916-11-0x0000000074980000-0x000000007513C000-memory.dmp

          memory/5916-7-0x0000000006940000-0x0000000006EFA000-memory.dmp

          memory/5916-8-0x0000000074980000-0x000000007513C000-memory.dmp

          memory/5916-10-0x0000000074980000-0x000000007513C000-memory.dmp

          memory/5976-42-0x0000000003CF0000-0x0000000003CFC000-memory.dmp

          memory/5976-50-0x0000000006250000-0x0000000006430000-memory.dmp

          memory/5976-38-0x0000000003CB0000-0x0000000003CDE000-memory.dmp

          memory/5976-46-0x0000000005F10000-0x000000000606A000-memory.dmp