Analysis

  • max time kernel
    149s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/10/2026, 15:10

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample261020-skb6qsbs8v
  • SHA256 98a2b9bbbf3173f34d120fa52a3debe19f14b041ba128e58777e26bafad7902d
  • 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 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:1916
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\b4f4b06bd0de9ff4\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:1036
  • 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 A5B26FC4E97CF831D4D7E4CBDE59C7A2 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI51EF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735062 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2028
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI58F5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736546 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:6124
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6114.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738796 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4292
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3056
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 73BAB3666AD21037C51CE5328B9FFEEB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4112
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3E481C7773EC9B36EF1E8EEE30A47BD6 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3924
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2172
    • C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-tipnzn-relay.screenconnect.com&p=443&s=8a1e0b08-2880-4c19-aecf-0b5eb90a5809&k=BgIAAACkAABSU0ExAAgAAAEAAQCR21Jclmt8X7ckACtWfDDPXbErXnr6NdWW5BsYC%2fW%2fwX%2f%2bdRP0yhB%2bg%2f7mfmQa3YEsn3Rxwultms5bAu6lbBSYA2chpyftux9ZgVXVsrVPHoSzNvBGFT9t7sRX8pSUerUTpSEc6BYn67ChvL9pZ6ZvUPZYWUPuiECrbV3XVyPZ3Ww3tXKLITGWe9PtfZ5503EGOTSjzwI9W9MOV5DHRnEHfDpxORbEGItUCScy43Y6hHsTJ0Nk8l0qvr%2fRKlhnW5MqwOVB4a2O9Q1BqcTzyvFqdrHuGdHH6htjn%2fDctcZ3WGPQT95CAigWKBUl%2fqlJzyZbLitJp9Ik3azzw4FVy4v1&c=SO1&c=&c=&c=&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:5872
      • C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe" "RunRole" "7f131086-0126-4e53-bafd-f0d73ac90954" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3428
      • C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe" "RunRole" "b59e9fee-3a71-41e8-b525-9379e62b76d6" "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:4688

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59b04c.rbs

          • Path C:\Config.Msi\e59b04c.rbs
          • Size 214KB
          • SHA256 a2910dcc4bc23da13b8d1ae23de79b3578ddbe9403244c1e5ed1c4d54582aeba
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\system.config
          • Size 962B
          • SHA256 edcfad7ce77cb2e54419903679123ad0847df77683657656196b0f06b4c3783a
          • MD5 SHA1 SHA512 TLSH

          MSI51EF.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI51EF.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI51EF.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI51EF.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI51EF.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI51EF.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI58F5.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI58F5.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\b4f4b06bd0de9ff4\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 463e94491802bceeecb25dcb89bf1f298c5ab2f27a71f0117d03d7f06bfc333a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB628.tmp

          • Path C:\Windows\Installer\MSIB628.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ju2y3etm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b4f4b06bd0de9ff4)\ju2y3etm.newcfg
          • Size 683B
          • SHA256 7968479170224f8b6c7bc01f5df3e84aa3e8a84d67f069ef4d9ca07941256e01
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b4f4b06bd0de9ff4)\user.config
          • Size 520B
          • SHA256 b0f387b61a980219c948b467c32f6290f73e772100cc206ae667077e6ad9f110
          • MD5 SHA1 SHA512 TLSH

          zprdpkl5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b4f4b06bd0de9ff4)\zprdpkl5.newcfg
          • Size 884B
          • SHA256 b3790b59c473ef0edc3dfdd00a2bcddb4d161356e4e3cd310ea38c0265a2eada
          • MD5 SHA1 SHA512 TLSH

          memory/1916-4-0x0000000006B10000-0x0000000006C6A000-memory.dmp

          memory/1916-8-0x00000000748A0000-0x000000007505C000-memory.dmp

          memory/1916-13-0x00000000748A0000-0x000000007505C000-memory.dmp

          memory/1916-1-0x0000000002A20000-0x0000000002A28000-memory.dmp

          memory/1916-2-0x00000000043D0000-0x00000000043DC000-memory.dmp

          memory/1916-0-0x00000000748B2000-0x00000000748B3000-memory.dmp

          memory/1916-11-0x00000000748A0000-0x000000007505C000-memory.dmp

          memory/1916-3-0x00000000748A0000-0x000000007505C000-memory.dmp

          memory/1916-9-0x00000000748A0000-0x000000007505C000-memory.dmp

          memory/1916-7-0x0000000007410000-0x00000000079CA000-memory.dmp

          memory/1916-5-0x0000000006A20000-0x0000000006A88000-memory.dmp

          memory/1916-6-0x0000000006C70000-0x0000000006E50000-memory.dmp

          memory/2028-39-0x0000000005EA0000-0x0000000005EAC000-memory.dmp

          memory/2028-47-0x0000000006380000-0x0000000006560000-memory.dmp

          memory/2028-43-0x0000000006040000-0x000000000619A000-memory.dmp

          memory/2028-35-0x0000000005E70000-0x0000000005E9E000-memory.dmp

          memory/2424-221-0x000001D828D00000-0x000001D8296A4000-memory.dmp

          memory/3428-226-0x000000001B430000-0x000000001B58A000-memory.dmp

          memory/3428-228-0x000000001B950000-0x000000001BAD8000-memory.dmp

          memory/3428-229-0x0000000002320000-0x0000000002350000-memory.dmp

          memory/3428-227-0x000000001B770000-0x000000001B950000-memory.dmp

          memory/3428-224-0x0000000000080000-0x0000000000216000-memory.dmp

          memory/3428-225-0x000000001AF30000-0x000000001AFCE000-memory.dmp

          memory/5872-199-0x00000000047A0000-0x0000000004832000-memory.dmp

          memory/5872-154-0x0000000003FB0000-0x0000000003FE0000-memory.dmp

          memory/5872-198-0x00000000044D0000-0x000000000456E000-memory.dmp

          memory/5872-160-0x0000000004280000-0x00000000043DA000-memory.dmp

          memory/5872-164-0x00000000045C0000-0x00000000047A0000-memory.dmp

          memory/5872-203-0x0000000004990000-0x0000000004A66000-memory.dmp

          memory/5872-177-0x00000000043E0000-0x0000000004430000-memory.dmp

          memory/5872-201-0x0000000004430000-0x0000000004471000-memory.dmp

          memory/6124-77-0x0000000005B00000-0x0000000005B68000-memory.dmp