Analysis

  • max time kernel
    150s
  • max time network
    128s
  • 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, 12:33

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample261020-prdfladv7n
  • SHA256 e94b46c823c7892acffcb2948978eda2fbd96d71285fd395641ee348b2d4db06
  • 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:4668
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\21f5fbe4cb3360c7\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:4156
  • 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:2584
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A0087153602E7ECE66A8A25A0975CA29 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5564
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI565.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240715390 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4688
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8F0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240716046 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:1376
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEDD.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717562 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3920
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3468
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DE6723139F537E1F05A09746B3B86550
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3796
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4FB3D0608F01276D38CD52BDDB2A6E9D E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4544
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2700
    • C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-grjy4i-relay.screenconnect.com&p=443&s=7d37e4fb-5a5a-475f-bb75-c5f845f1b96b&k=BgIAAACkAABSU0ExAAgAAAEAAQAhshpXhau4YSvQCnRBGo9KFU4BFzTSIQO3GqgB0fLbqhnarKGNEO0iCcmKwQuzjU9%2b3NmLqx8lKfN43gFBjV0c4POII2jQAlCkE7pchGue0iDk%2fay%2bnjipLiJTtDDX74%2f7rWMP%2fydLMfLj3Z561QRmiXwrJoa7SyHs7j4OPw1GIkgVve%2b1nPviRn0atq%2b5IGaWvecPFZhfK3SMvQLPynSL3RpqdY67701SCfOPEbEpTRkrjkQrP1gn4%2fwRi09gLA7W4j3jpmWbtAdNES6Q4KqHsWPugjTpPbMGthojIQA4Zd0Gv9eAjWk%2btIXPl%2bwNeTml2DNv6QwTCKPq4ANisG%2fh&c=new&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:5048
      • C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsClient.exe" "RunRole" "4858615c-e004-4d60-a52a-248e78de3b17" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1864
      • C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsClient.exe" "RunRole" "d4119d3b-fd9b-49cc-9787-5cf63c37f64a" "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:6056

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e595470.rbs

          • Path C:\Config.Msi\e595470.rbs
          • Size 214KB
          • SHA256 a874d59bb8324c2325f6f7ab4d504cdf0c2c2bad25f89cc8b61effac55d91436
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (21f5fbe4cb3360c7)\system.config
          • Size 966B
          • SHA256 07623dae5f544ddd67f45ec99356c637b71f426a8e1ec28ca6d18d8328e6ded9
          • MD5 SHA1 SHA512 TLSH

          MSI565.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI565.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI565.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI565.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI565.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI565.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8F0.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8F0.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\21f5fbe4cb3360c7\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 ae257822e0271ed2daea3fd89feeb803160ae4deefda15839d62f79a2b71967f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI59EF.tmp

          • Path C:\Windows\Installer\MSI59EF.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          rwkfypxg.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (21f5fbe4cb3360c7)\rwkfypxg.newcfg
          • Size 885B
          • SHA256 26969ea991524b1ca9b65bce0580f6bdb416e29de43c0a73458ca83c2eb493ea
          • MD5 SHA1 SHA512 TLSH

          taemjto4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (21f5fbe4cb3360c7)\taemjto4.newcfg
          • Size 683B
          • SHA256 5323616cd2e3fc1f5d4933b463ec5ab8fd6a01f50c8649873e5f81572df92641
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (21f5fbe4cb3360c7)\user.config
          • Size 520B
          • SHA256 bd8543c801c422a7ec17d5aea6b07611cee9b9e1c09c929fd008b7ca027f6496
          • MD5 SHA1 SHA512 TLSH

          memory/1376-77-0x0000000005A90000-0x0000000005AF8000-memory.dmp

          memory/1864-228-0x000000001AEB0000-0x000000001AEE0000-memory.dmp

          memory/1864-224-0x000000001AF20000-0x000000001AFBE000-memory.dmp

          memory/1864-223-0x0000000000140000-0x00000000002D6000-memory.dmp

          memory/1864-225-0x000000001B420000-0x000000001B57A000-memory.dmp

          memory/1864-226-0x000000001B760000-0x000000001B940000-memory.dmp

          memory/1864-227-0x000000001B940000-0x000000001BAC8000-memory.dmp

          memory/4668-8-0x0000000007200000-0x00000000077BA000-memory.dmp

          memory/4668-5-0x0000000006800000-0x0000000006868000-memory.dmp

          memory/4668-13-0x0000000074430000-0x0000000074BEC000-memory.dmp

          memory/4668-11-0x0000000074430000-0x0000000074BEC000-memory.dmp

          memory/4668-6-0x0000000006A60000-0x0000000006C40000-memory.dmp

          memory/4668-1-0x0000000006740000-0x0000000006748000-memory.dmp

          memory/4668-7-0x0000000074430000-0x0000000074BEC000-memory.dmp

          memory/4668-2-0x0000000006760000-0x000000000676C000-memory.dmp

          memory/4668-9-0x0000000074430000-0x0000000074BEC000-memory.dmp

          memory/4668-0-0x0000000074442000-0x0000000074443000-memory.dmp

          memory/4668-3-0x0000000006900000-0x0000000006A5A000-memory.dmp

          memory/4668-4-0x0000000074430000-0x0000000074BEC000-memory.dmp

          memory/4688-47-0x0000000006120000-0x0000000006300000-memory.dmp

          memory/4688-43-0x0000000005DE0000-0x0000000005F3A000-memory.dmp

          memory/4688-39-0x0000000005BC0000-0x0000000005BCC000-memory.dmp

          memory/4688-35-0x0000000005B90000-0x0000000005BBE000-memory.dmp

          memory/5048-199-0x0000000005020000-0x00000000050B2000-memory.dmp

          memory/5048-164-0x0000000004E40000-0x0000000005020000-memory.dmp

          memory/5048-201-0x0000000004CB0000-0x0000000004CF1000-memory.dmp

          memory/5048-203-0x0000000005210000-0x00000000052E6000-memory.dmp

          memory/5048-198-0x0000000004D50000-0x0000000004DEE000-memory.dmp

          memory/5048-160-0x0000000004B00000-0x0000000004C5A000-memory.dmp

          memory/5048-154-0x0000000004840000-0x0000000004870000-memory.dmp

          memory/5048-176-0x0000000004C60000-0x0000000004CB0000-memory.dmp