Analysis

  • max time kernel
    149s
  • max time network
    129s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 06:22

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample260925-g477qs1glc
  • SHA256 2f585dedad25e767497c393cd7bf2806486c580d7183e7c6f68dff0057a00860
  • 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 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 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 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:1796
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\2884a5a51e317245\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:6032
  • 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:2424
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F195386ADCDF4E63604E880328CF0A89 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2948
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI63B2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:252
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6818.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240740484 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1780
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6FF8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240742531 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:936
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2760
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 67D2876D1BEBB936311246BDD55B5A41
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3700
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding D30B055E64F1AC94540B6C82C58BB4EF E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3256
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3408
    • C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jmmqq9-relay.screenconnect.com&p=443&s=c0d03750-899c-418e-96d0-dc3d0f71cdf7&k=BgIAAACkAABSU0ExAAgAAAEAAQBZ4mhytLo7ss4OP435kFLQ21zEr%2fNRRla34GOlJcd%2f1fLYhMHAfdz6b93313KZwmC71dpmuxuEzUd9li9eEKS9JCbdNxp3VjHtgz9dzj8rWfdNaHf0SsTEKxHNotpygtfpg8Kt7Lt8lTx3S4CsSrosP7GjqNLAbx4zw%2bAhtR%2bJUQ7UEQ5WSxV5JCTOIH4gDI2nZn0iNGR55h4utg4VIjcJaGqRAkP3PJDiRttTzaEO0pomDpb3GnUuL5YkCepvUlJjKEJzJ040ZVr4WKGk7br0pJ%2b8vDMF5j3M0n1fD29OZmPpbYQ%2br8l%2f9g5T9UyKuhyGDYRuRn69iIcLwQClI%2bW8"
      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:1236
      • C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsClient.exe" "RunRole" "93bb6e01-d541-44bb-9779-4a197097b63a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:6132
      • C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsClient.exe" "RunRole" "2a377de1-6872-46f4-9bb3-4dac831e7ac6" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3944

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59c7ac.rbs

          • Path C:\Config.Msi\e59c7ac.rbs
          • Size 214KB
          • SHA256 505c612e7cfce0d320ed44cef3159f10eef5f7f72273e11da9cac50d50a27b16
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2884a5a51e317245)\system.config
          • Size 960B
          • SHA256 178d7255235b54f4d25cc72395a5c430f5628751138441c8efcf317e1c266f04
          • MD5 SHA1 SHA512 TLSH

          MSI63B2.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI63B2.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI63B2.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI63B2.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI63B2.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI63B2.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6818.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6818.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\2884a5a51e317245\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 1571543b799570cdc6dcfca988d80ad4e3e56b52fc05d33b151f667ce77110e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSICF3E.tmp

          • Path C:\Windows\Installer\MSICF3E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          b0q4mepz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2884a5a51e317245)\b0q4mepz.newcfg
          • Size 882B
          • SHA256 5584ae4c992b0c7793b2828b46499c6d3726b0e9d75af1c167d850b6f339ac1b
          • MD5 SHA1 SHA512 TLSH

          eoavwfpp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2884a5a51e317245)\eoavwfpp.newcfg
          • Size 683B
          • SHA256 ffad2ee17f389d5b58d821bd4aad4bfb11207422f17b0cd474fbef6d8300652e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2884a5a51e317245)\user.config
          • Size 520B
          • SHA256 5ba0c2344b381360d9209e400b662d6f2f57f0764cc8e4794177bc7a4254c58d
          • MD5 SHA1 SHA512 TLSH

          memory/252-41-0x0000000005520000-0x000000000567A000-memory.dmp

          memory/252-45-0x0000000005860000-0x0000000005A40000-memory.dmp

          memory/252-37-0x0000000003310000-0x000000000331C000-memory.dmp

          memory/252-33-0x00000000032D0000-0x00000000032FE000-memory.dmp

          memory/1236-175-0x0000000004B80000-0x0000000004BD0000-memory.dmp

          memory/1236-195-0x0000000004F80000-0x0000000005012000-memory.dmp

          memory/1236-158-0x0000000004920000-0x0000000004A7A000-memory.dmp

          memory/1236-162-0x0000000004C60000-0x0000000004E40000-memory.dmp

          memory/1236-197-0x00000000048E0000-0x0000000004921000-memory.dmp

          memory/1236-199-0x0000000005170000-0x0000000005246000-memory.dmp

          memory/1236-194-0x0000000004EE0000-0x0000000004F7E000-memory.dmp

          memory/1236-152-0x0000000004730000-0x0000000004760000-memory.dmp

          memory/1780-75-0x0000000005FC0000-0x0000000006028000-memory.dmp

          memory/1796-3-0x0000000002740000-0x000000000274C000-memory.dmp

          memory/1796-0-0x0000000074C22000-0x0000000074C23000-memory.dmp

          memory/1796-7-0x00000000067B0000-0x0000000006990000-memory.dmp

          memory/1796-8-0x0000000074C10000-0x00000000753CC000-memory.dmp

          memory/1796-9-0x0000000006F50000-0x000000000750A000-memory.dmp

          memory/1796-5-0x0000000006740000-0x00000000067A8000-memory.dmp

          memory/1796-10-0x0000000074C10000-0x00000000753CC000-memory.dmp

          memory/1796-4-0x00000000065E0000-0x000000000673A000-memory.dmp

          memory/1796-12-0x0000000074C10000-0x00000000753CC000-memory.dmp

          memory/1796-2-0x0000000074C10000-0x00000000753CC000-memory.dmp

          memory/1796-6-0x0000000074C10000-0x00000000753CC000-memory.dmp

          memory/1796-1-0x0000000002710000-0x0000000002718000-memory.dmp

          memory/3944-226-0x0000000000EA0000-0x0000000000EE1000-memory.dmp

          memory/6132-218-0x0000000002930000-0x00000000029CE000-memory.dmp

          memory/6132-219-0x000000001B860000-0x000000001B9BA000-memory.dmp

          memory/6132-221-0x000000001BBA0000-0x000000001BD80000-memory.dmp

          memory/6132-217-0x00000000004E0000-0x0000000000676000-memory.dmp

          memory/6132-223-0x0000000002740000-0x0000000002770000-memory.dmp

          memory/6132-222-0x000000001BD80000-0x000000001BF08000-memory.dmp

          memory/6132-224-0x0000000000EE0000-0x0000000000F21000-memory.dmp