Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 12:27

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample260930-pmxzfaxepe
  • SHA256 8d91945d5465044aa5506b8fe50fe5c54ef49c8c5c5debaea2626434d9a4abca
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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 47 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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:3316
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\7c7dbf8557684123\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:3848
  • 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:760
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C3D34A4BDC6485C8702D88F3E39E9FD5 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3396
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6894.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240740718 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5252
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6F0D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240742203 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:6072
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI77E7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240744703 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1848
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2304
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 61B372D59595A4FE93C715D4EDF71F91
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3040
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B45B67D83149DC1C06ED6FEFC959D191 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2060
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4992
    • C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-fnkp41-relay.screenconnect.com&p=443&s=dc5cff47-9ac2-44b9-b329-97cc202ab421&k=BgIAAACkAABSU0ExAAgAAAEAAQCNwRJW6FgXPqn4qUPO6GTqOXXo5VTW92Y1Fs72X8Dni1QmR0iuuc%2bpC2ULg%2bjT6OIxePZL0Vv%2b8euxmlO6ZJQ2NEKSsXuPGOn0SlxyERT6GA34vCwHW6fV49knTS3pXRfR46ndgzNv6Qvv60crXuC7ArwoGOj3BzVxO7iGKHUn7If%2f%2bzjpxgYSuvqxsbr7Tr9r%2bOgpPID%2burjj51Fx82WGtgPBikl6g8eMqNH8av7zW8nQjer7m40SAyIiK3FEIVrUo%2fR8tpbRTPh8IxN0q4JGJdPTyXbxSpUwsh9%2fCNbcPJxcsKAo94kFXtbFMmlkVr%2boKFnmXKHWo7Qz0vL9voqx&c=geral&c=tayesba&c=CLIENTES&c=CLIENTEc00422&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsClient.exe" "RunRole" "053ebf33-30eb-420e-9320-9be30e5303b0" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5600
      • C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsClient.exe" "RunRole" "8968150a-d319-4fb3-bf58-e3d6dda035b2" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4736

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59e585.rbs

          • Path C:\Config.Msi\e59e585.rbs
          • Size 214KB
          • SHA256 d5567e8ea71cfe390b7139b020ab81ac14aa64e5960bd862badbacd530d7a48c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7c7dbf8557684123)\system.config
          • Size 964B
          • SHA256 67e457ee6e7c50c3aa6539f33c0c2f71ad18f5d27554ae766f7c826a1b1b83ae
          • MD5 SHA1 SHA512 TLSH

          MSI6894.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6894.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6894.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6894.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6894.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6894.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F0D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F0D.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\7c7dbf8557684123\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 ff44dbb0793f07787a4cb78d47af05b3f85a5f3156b8887eab8487b2d7736d0f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIEF78.tmp

          • Path C:\Windows\Installer\MSIEF78.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hzq0yakf.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7c7dbf8557684123)\hzq0yakf.newcfg
          • Size 683B
          • SHA256 2b36aea48823257438832bcf02781c0b61ca37f7ab85575bff40aab5ffa92361
          • MD5 SHA1 SHA512 TLSH

          twbnxpfg.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7c7dbf8557684123)\twbnxpfg.newcfg
          • Size 883B
          • SHA256 3ef86b40c6d38dc2e506232bf7ada0a4ed544599931490a68b6c07700e1e697c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7c7dbf8557684123)\user.config
          • Size 520B
          • SHA256 f0f52857e3b93ac1381654169cb8273ef47a59ef06a6fe61d784610264531351
          • MD5 SHA1 SHA512 TLSH

          {834ce250-a63c-4d44-911b-303034093951}_OnDiskSnapshotProp

          • Path \??\Volume{e42a0d43-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{834ce250-a63c-4d44-911b-303034093951}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 c4d70f85febca060ed1d97ff149fb2c9d7fe69d1d6f5f11d8dfa53eeb648cba0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2544-197-0x0000000004960000-0x00000000049A1000-memory.dmp

          memory/2544-199-0x0000000005160000-0x0000000005236000-memory.dmp

          memory/2544-195-0x0000000004F70000-0x0000000005002000-memory.dmp

          memory/2544-194-0x0000000004ED0000-0x0000000004F6E000-memory.dmp

          memory/2544-152-0x0000000002170000-0x00000000021A0000-memory.dmp

          memory/2544-175-0x0000000004910000-0x0000000004960000-memory.dmp

          memory/2544-158-0x00000000049B0000-0x0000000004B0A000-memory.dmp

          memory/2544-162-0x0000000004CF0000-0x0000000004ED0000-memory.dmp

          memory/3316-6-0x00000000069C0000-0x0000000006A28000-memory.dmp

          memory/3316-2-0x00000000067B0000-0x00000000067BC000-memory.dmp

          memory/3316-9-0x0000000074F50000-0x000000007570C000-memory.dmp

          memory/3316-8-0x00000000071F0000-0x00000000077AA000-memory.dmp

          memory/3316-7-0x0000000006A40000-0x0000000006C20000-memory.dmp

          memory/3316-10-0x0000000074F50000-0x000000007570C000-memory.dmp

          memory/3316-1-0x00000000042A0000-0x00000000042A8000-memory.dmp

          memory/3316-5-0x0000000074F50000-0x000000007570C000-memory.dmp

          memory/3316-0-0x0000000074F62000-0x0000000074F63000-memory.dmp

          memory/3316-13-0x0000000074F50000-0x000000007570C000-memory.dmp

          memory/3316-3-0x0000000074F50000-0x000000007570C000-memory.dmp

          memory/3316-4-0x0000000006820000-0x000000000697A000-memory.dmp

          memory/4736-226-0x00000000026C0000-0x0000000002701000-memory.dmp

          memory/5252-41-0x00000000057D0000-0x000000000592A000-memory.dmp

          memory/5252-45-0x0000000005B10000-0x0000000005CF0000-memory.dmp

          memory/5252-37-0x00000000035C0000-0x00000000035CC000-memory.dmp

          memory/5252-33-0x0000000003580000-0x00000000035AE000-memory.dmp

          memory/5600-223-0x000000001B190000-0x000000001B1C0000-memory.dmp

          memory/5600-219-0x000000001B770000-0x000000001B8CA000-memory.dmp

          memory/5600-221-0x000000001BAB0000-0x000000001BC90000-memory.dmp

          memory/5600-222-0x000000001BC90000-0x000000001BE18000-memory.dmp

          memory/5600-217-0x0000000000440000-0x00000000005D6000-memory.dmp

          memory/5600-224-0x0000000000F70000-0x0000000000FB1000-memory.dmp

          memory/5600-218-0x000000001B270000-0x000000001B30E000-memory.dmp

          memory/6072-75-0x0000000005430000-0x0000000005498000-memory.dmp