Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 12:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 16.4MB
  • Sample260701-pfevaafx8x
  • SHA256 0a024973e1166d644ab1597c8926e54e4327139ea1cebf3d4cc6b69c79acd933
  • 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 18 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:5428
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\186bfa2418652c32\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:256
  • 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:4860
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 593E9E39B77A31CDA74C7A08E5692656 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3664
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7C3B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240745687 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1832
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7EDC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240746234 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3428
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8545.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240747968 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5820
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4792
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C137C93E21206EE44DF997352121DC34
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3884
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F6AE9CBB861D647E8FC517CE8D21AA38 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4244
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4476
    • C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-nxwqwd-relay.screenconnect.com&p=443&s=a69da695-ed2b-4cf2-a1a5-f81fdf991e4a&k=BgIAAACkAABSU0ExAAgAAAEAAQBVPzs8rOrBppXTdrfVs%2bhNV9ze144k0o6cjrc5uF%2fe%2bdSzMT3CSGSSkWBd3DpNvRPmwyLcgj4nQewhQ0oZoQJVxVi8MHtWIAd92qmJA6Y3hyH6oa%2brgmGrLP4K%2fCpx4jQ6dRbj%2frQEJ4jGRrfGeGtuDqu%2ffVqrM6jxlD%2febqgVT3zWbKL2fwCsOpyS7H4Q5cbXqrkDNdjoPcZUWmiiUyS1Mo85vdWTgB76hwJvUQtpvIrgHFeloyp0DuDnbOTTjY29llnMlGnii774HZXhRs%2bgAAtPy6CwVuemU26rWf0GB1tjRp3BedW97Hv49vOLGTrxL9CrN2n8wNtgwxlxgrvF&c=Burnside%20War%20Memorial%20Hospital&c=Burnside%20War%20Memorial%20Hospital%20-%20Toorak&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:3580
      • C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsClient.exe" "RunRole" "fced3711-3a3f-4f49-b20a-3752dfefe697" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2784
      • C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsClient.exe" "RunRole" "39861354-096e-4a2e-999a-09efd9eb7127" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4048

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59e844.rbs

          • Path C:\Config.Msi\e59e844.rbs
          • Size 214KB
          • SHA256 779fc5ef032471b706db2b54e8f1423070b8230ef2abe411b0b811339fa8efe2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\Client.Override.en-US.resources
          • Size 1024B
          • SHA256 1727520424d0b2703c648cd0619bb4c4b82a7c0dc320031703ac4bf7b3016705
          • MD5 SHA1 SHA512 TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\app.config
          • Size 1010B
          • SHA256 060fbd7d89dc6d84022ca9515c488994c4657db3383eb652198452cb0a5479c2
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (186bfa2418652c32)\system.config
          • Size 962B
          • SHA256 7aab9164d6b21d0e494b3dddd411e2acc73a3ca8c50a68de5c252ba3551e8d09
          • MD5 SHA1 SHA512 TLSH

          MSI7C3B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7C3B.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7C3B.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7C3B.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7EDC.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7EDC.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7EDC.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7EDC.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\186bfa2418652c32\ScreenConnect.ClientSetup.msi
          • Size 13.9MB
          • SHA256 b3dfc6f7ed69f78f369efe1f53abe9ef90fd21243526f8adb26a5f7b59a44aab
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF062.tmp

          • Path C:\Windows\Installer\MSIF062.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          h5bapvtj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (186bfa2418652c32)\h5bapvtj.newcfg
          • Size 883B
          • SHA256 0a37039b51ad0da4d5cc9c31163fd90768d98d0fa43524148955e032069ce089
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (186bfa2418652c32)\user.config
          • Size 683B
          • SHA256 1b4515c977358e52a064e455e29327d442657ac7a5f12a48844650bfff794630
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (186bfa2418652c32)\user.config
          • Size 520B
          • SHA256 966f199e3656f273754dfdcd73e06ee507aff4e2aaaa9460ef48c190ef8b7553
          • MD5 SHA1 SHA512 TLSH

          memory/1832-39-0x0000000005120000-0x000000000512C000-memory.dmp

          memory/1832-43-0x0000000005210000-0x00000000052A4000-memory.dmp

          memory/1832-47-0x0000000005460000-0x0000000005610000-memory.dmp

          memory/1832-35-0x0000000005140000-0x000000000516E000-memory.dmp

          memory/2784-226-0x0000000000AA0000-0x0000000000ABA000-memory.dmp

          memory/2784-225-0x000000001B5C0000-0x000000001B770000-memory.dmp

          memory/2784-227-0x000000001B900000-0x000000001BA88000-memory.dmp

          memory/2784-224-0x000000001B370000-0x000000001B404000-memory.dmp

          memory/2784-223-0x0000000000AE0000-0x0000000000B4C000-memory.dmp

          memory/2784-228-0x0000000000B60000-0x0000000000BA1000-memory.dmp

          memory/2784-222-0x0000000000180000-0x000000000022C000-memory.dmp

          memory/3428-77-0x0000000005A00000-0x0000000005A28000-memory.dmp

          memory/3580-180-0x0000000003FD0000-0x0000000004020000-memory.dmp

          memory/3580-197-0x0000000004090000-0x00000000040FC000-memory.dmp

          memory/3580-198-0x00000000041A0000-0x0000000004232000-memory.dmp

          memory/3580-166-0x0000000003E20000-0x0000000003FD0000-memory.dmp

          memory/3580-202-0x0000000004390000-0x0000000004466000-memory.dmp

          memory/3580-200-0x0000000003DE0000-0x0000000003E21000-memory.dmp

          memory/3580-162-0x0000000003B30000-0x0000000003BC4000-memory.dmp

          memory/3580-156-0x0000000003A70000-0x0000000003A8A000-memory.dmp

          memory/5428-0-0x0000000074322000-0x0000000074323000-memory.dmp

          memory/5428-3-0x0000000005DC0000-0x0000000005E54000-memory.dmp

          memory/5428-2-0x00000000037B0000-0x00000000037BC000-memory.dmp

          memory/5428-4-0x0000000074310000-0x0000000074ACC000-memory.dmp

          memory/5428-1-0x0000000001FD0000-0x0000000001FD8000-memory.dmp

          memory/5428-5-0x0000000005D30000-0x0000000005D58000-memory.dmp

          memory/5428-6-0x0000000005E50000-0x0000000006000000-memory.dmp

          memory/5428-7-0x00000000065C0000-0x0000000006B7A000-memory.dmp

          memory/5428-8-0x0000000074310000-0x0000000074ACC000-memory.dmp

          memory/5428-10-0x0000000074310000-0x0000000074ACC000-memory.dmp

          memory/5428-12-0x0000000074310000-0x0000000074ACC000-memory.dmp

          memory/5428-13-0x0000000074310000-0x0000000074ACC000-memory.dmp