Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/07/2026, 00:21

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260714-anfdfsa18r
  • SHA256 cd782c7a9d7ac42869e10a79e011b6487631732d523e4007242a4f337d9a0861
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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 15 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 50 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 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 9 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:2552
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\149c9bcbb5183a9e\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:4200
  • 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:4432
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2DD5ACA42C4E53AA71DB0EF1C490C899 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6100
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI401C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240730437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2172
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI451E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240731437 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3704
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3EE1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240795609 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1220
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5716
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 581BF754FAE6B48C3A76982D9C10D7E7
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6124
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 45546663F790BF1CD10BF236928506A8 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4684
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4676
    • C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-zx17e1-relay.screenconnect.com&p=443&s=8eba2df9-b2c9-45f3-8a46-fb41f5a4b55f&k=BgIAAACkAABSU0ExAAgAAAEAAQBJGn5sZwtzJpaLbbRh1OMjQkuQDfiWG7bRFjaQF3o684SXblscMZJqje2cz1JSi6rGHJlpJidv5aMny4M8pJkQ8Hy7ZCuIK90237PwBHRQVmGkFs5qk1idYOAuaMUw2jiLfYue5ni3aM31w6E3GUcNfB5xra11Bdma8Kpb2JZdYXyiWqVWeeWgMSmWKWhnfAZlwN7tclbRhfb2VRXbMeh3lp9m2r9evMsXedMfvyI4eXHXlfDOUtXfvNR1ZaKo45y5PLYbxiShUxWvyc9F9cBmkHtgvpkllbxDqCboDbZHaw4bC98br762uaoa4yKqWl2xC4UyTpyyUICuoIPm2jmz"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:6028
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 6028 -s 1336
        2⤵
        • Program crash
        PID:6000
    • C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-zx17e1-relay.screenconnect.com&p=443&s=8eba2df9-b2c9-45f3-8a46-fb41f5a4b55f&k=BgIAAACkAABSU0ExAAgAAAEAAQBJGn5sZwtzJpaLbbRh1OMjQkuQD%2fiWG7%2bRFjaQF3o684SX%2blscMZJqje2cz1JSi6rGHJlpJidv5aMny4M8pJkQ8Hy7ZCuIK90237PwBHRQVmGkFs5qk1idYOAuaMUw2jiL%2fYue5ni3aM31w6E3GUcN%2fB5xra11Bdma8Kpb2JZdYXyiWqVWeeWgMSmWKWhnfAZlwN7tcl%2bRh%2fb2VRXbMeh3lp9m2r9evMsXedM%2fvyI4eXHXl%2fDOUtX%2fvNR1ZaKo45y5PLY%2bxiShUxWvyc9F9cBmkHtgvpkllbxDqCboDbZHaw4bC98br762uaoa4yKqWl2xC4UyTpyyUICuoIPm2jmz"
      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:1068
      • C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.WindowsClient.exe" "RunRole" "cf25cf5f-0d34-4625-af73-bdbd7d763746" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4120
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 6028 -ip 6028
      1⤵
        PID:1908

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            e5a979f.rbs

            • Path C:\Config.Msi\e5a979f.rbs
            • Size 214KB
            • SHA256 7a7c6e5d8f1cc7b790436133489943099cb8b29de88600563faaac3b3a40e53f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.ClientService.dll
            • Size 91KB
            • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.Core.dll
            • Size 577KB
            • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (149c9bcbb5183a9e)\system.config
            • Size 966B
            • SHA256 ebc9b01621a346f7e790d5ebbd9b4c1b4dba520d2c29279d37aaedc7957698cf
            • MD5 SHA1 SHA512 TLSH

            MSI401C.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI401C.tmp
            • Size 1.1MB
            • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI401C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI401C.tmp-\ScreenConnect.Core.dll
            • Size 567KB
            • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI401C.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI401C.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI451E.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI451E.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\149c9bcbb5183a9e\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 0b67638dff96bb5428b822a8cfc07579daa7793d092871309a07f48ebb0ee4c2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI9ED2.tmp

            • Path C:\Windows\Installer\MSI9ED2.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            00tumjsi.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (149c9bcbb5183a9e)\00tumjsi.newcfg
            • Size 884B
            • SHA256 f6af743db70fbbcdd1286fbd440a095bcc1370fa7d6da4fec8af271049f58db0
            • MD5 SHA1 SHA512 TLSH

            kcexpebm.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (149c9bcbb5183a9e)\kcexpebm.newcfg
            • Size 884B
            • SHA256 a48269372ba507b493475caa9b530baf06ad978f29a9ba4a81fb8abfa79b0fff
            • MD5 SHA1 SHA512 TLSH

            lmepqrvx.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (149c9bcbb5183a9e)\lmepqrvx.newcfg
            • Size 683B
            • SHA256 75907dc4421cb134932e3e9c9b23ac9e50a9536d96c37d7881b095e3ad2384a2
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (149c9bcbb5183a9e)\user.config
            • Size 520B
            • SHA256 a64afe967765e483f99efa2b9e51e1d95e88be3fcf554d70da76ff994bea11ae
            • MD5 SHA1 SHA512 TLSH

            vb1ltav2.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (149c9bcbb5183a9e)\vb1ltav2.newcfg
            • Size 884B
            • SHA256 a041b9c3615b2fb1a70e3e9304bf99b8dd3cd8715208bf994a31ce3b4bf17965
            • MD5 SHA1 SHA512 TLSH

            memory/1068-205-0x0000000004BE0000-0x0000000004C4C000-memory.dmp

            memory/1068-187-0x0000000004B20000-0x0000000004B70000-memory.dmp

            memory/1068-207-0x0000000004930000-0x0000000004971000-memory.dmp

            memory/1068-208-0x0000000004EE0000-0x0000000004FB6000-memory.dmp

            memory/1068-206-0x0000000004CF0000-0x0000000004D82000-memory.dmp

            memory/2172-43-0x0000000003D90000-0x0000000003E24000-memory.dmp

            memory/2172-39-0x0000000003CA0000-0x0000000003CAC000-memory.dmp

            memory/2172-35-0x0000000003C60000-0x0000000003C8E000-memory.dmp

            memory/2172-47-0x0000000006050000-0x0000000006200000-memory.dmp

            memory/2552-6-0x0000000005C80000-0x0000000005E30000-memory.dmp

            memory/2552-13-0x00000000747F0000-0x0000000074FAC000-memory.dmp

            memory/2552-7-0x00000000747F0000-0x0000000074FAC000-memory.dmp

            memory/2552-1-0x00000000034F0000-0x00000000034F8000-memory.dmp

            memory/2552-8-0x00000000063F0000-0x00000000069AA000-memory.dmp

            memory/2552-2-0x0000000005B10000-0x0000000005B1C000-memory.dmp

            memory/2552-10-0x00000000747F0000-0x0000000074FAC000-memory.dmp

            memory/2552-5-0x00000000747F0000-0x0000000074FAC000-memory.dmp

            memory/2552-4-0x0000000005C50000-0x0000000005C78000-memory.dmp

            memory/2552-0-0x0000000074802000-0x0000000074803000-memory.dmp

            memory/2552-3-0x0000000005BC0000-0x0000000005C54000-memory.dmp

            memory/2552-9-0x00000000747F0000-0x0000000074FAC000-memory.dmp

            memory/3704-77-0x0000000003EA0000-0x0000000003EC8000-memory.dmp

            memory/4120-221-0x0000000000050000-0x00000000000FC000-memory.dmp

            memory/4120-223-0x0000000002510000-0x000000000257C000-memory.dmp

            memory/4120-224-0x000000001B160000-0x000000001B1F4000-memory.dmp

            memory/4120-225-0x000000001B3B0000-0x000000001B560000-memory.dmp

            memory/4120-226-0x0000000002330000-0x000000000234A000-memory.dmp

            memory/4120-227-0x000000001B6F0000-0x000000001B878000-memory.dmp

            memory/4120-228-0x0000000002370000-0x00000000023B1000-memory.dmp

            memory/6028-155-0x0000000002C50000-0x0000000002C6A000-memory.dmp

            memory/6028-162-0x0000000005290000-0x0000000005324000-memory.dmp

            memory/6028-169-0x0000000005530000-0x00000000056E0000-memory.dmp