Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 00:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample260930-ak4xmsself
  • SHA256 45b20869b5d50ce10499f6e45cdd7460261fba15670f066394e2237c7eb490b7
  • 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 47 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:4684
    • 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⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:3052
  • 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:2564
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4AE04806F7E7019DAA3033D3B55EB15C C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6104
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF855.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240711921 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4960
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFB92.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240712640 10 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:3724
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI298.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240714718 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2556
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2060
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 985AB108793ED3221FF19E6A6C6CDB40
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4876
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 549309F19D8E89C2CA81A10502EB0EA2 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2288
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1216
    • 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=5f2a35f5-77ec-4b56-a726-6c819afac0ba&k=BgIAAACkAABSU0ExAAgAAAEAAQCR21Jclmt8X7ckACtWfDDPXbErXnr6NdWW5BsYC%2fW%2fwX%2f%2bdRP0yhB%2bg%2f7mfmQa3YEsn3Rxwultms5bAu6lbBSYA2chpyftux9ZgVXVsrVPHoSzNvBGFT9t7sRX8pSUerUTpSEc6BYn67ChvL9pZ6ZvUPZYWUPuiECrbV3XVyPZ3Ww3tXKLITGWe9PtfZ5503EGOTSjzwI9W9MOV5DHRnEHfDpxORbEGItUCScy43Y6hHsTJ0Nk8l0qvr%2fRKlhnW5MqwOVB4a2O9Q1BqcTzyvFqdrHuGdHH6htjn%2fDctcZ3WGPQT95CAigWKBUl%2fqlJzyZbLitJp9Ik3azzw4FVy4v1"
      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:1796
      • C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe" "RunRole" "0aeb57e7-c72f-463a-bb92-42c29bc51125" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5076
      • C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b4f4b06bd0de9ff4)\ScreenConnect.WindowsClient.exe" "RunRole" "f937910d-76bf-46ee-b769-766be4bd33d4" "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:3628

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e596d09.rbs

          • Path C:\Config.Msi\e596d09.rbs
          • Size 214KB
          • SHA256 f75a7f17e0cf4a7ad6b227870a2e57b3d8325e03a7581b65d846997978a60aed
          • 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

          MSIF855.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF855.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF855.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF855.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF855.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF855.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFB92.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFB92.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 9b342d2e84f7acd9c9c05889e3f8efad4dcd01fc0a8b4f055602422b729d9125
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7650.tmp

          • Path C:\Windows\Installer\MSI7650.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          pxtuxhkf.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b4f4b06bd0de9ff4)\pxtuxhkf.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

          vp5sh0vx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b4f4b06bd0de9ff4)\vp5sh0vx.newcfg
          • Size 884B
          • SHA256 8064a1e8dd8ac3c26c60343e5ff60b431f36557ed886bb57dd06160b359e7740
          • MD5 SHA1 SHA512 TLSH

          {c1ceee07-1967-4dd4-a577-4c31f4a6518a}_OnDiskSnapshotProp

          • Path \??\Volume{e42a0d43-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{c1ceee07-1967-4dd4-a577-4c31f4a6518a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 54d152adddc44e66241cf8ad4bbcdb64352678ef5e4076385713179cb9e6b60f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1796-152-0x0000000004120000-0x0000000004150000-memory.dmp

          memory/1796-197-0x0000000004550000-0x0000000004591000-memory.dmp

          memory/1796-199-0x0000000004B00000-0x0000000004BD6000-memory.dmp

          memory/1796-195-0x0000000004910000-0x00000000049A2000-memory.dmp

          memory/1796-158-0x00000000043F0000-0x000000000454A000-memory.dmp

          memory/1796-194-0x0000000004690000-0x000000000472E000-memory.dmp

          memory/1796-162-0x0000000004730000-0x0000000004910000-memory.dmp

          memory/1796-175-0x00000000045A0000-0x00000000045F0000-memory.dmp

          memory/2564-225-0x000001BA88DF0000-0x000001BA89794000-memory.dmp

          memory/3724-75-0x0000000005CB0000-0x0000000005D18000-memory.dmp

          memory/4684-9-0x0000000007040000-0x00000000075FA000-memory.dmp

          memory/4684-2-0x0000000002810000-0x000000000281C000-memory.dmp

          memory/4684-7-0x00000000068A0000-0x0000000006A80000-memory.dmp

          memory/4684-8-0x0000000074FC0000-0x000000007577C000-memory.dmp

          memory/4684-5-0x0000000074FC0000-0x000000007577C000-memory.dmp

          memory/4684-6-0x0000000006830000-0x0000000006898000-memory.dmp

          memory/4684-10-0x0000000074FC0000-0x000000007577C000-memory.dmp

          memory/4684-0-0x0000000074FD2000-0x0000000074FD3000-memory.dmp

          memory/4684-1-0x00000000027F0000-0x00000000027F8000-memory.dmp

          memory/4684-4-0x00000000066D0000-0x000000000682A000-memory.dmp

          memory/4684-3-0x0000000074FC0000-0x000000007577C000-memory.dmp

          memory/4684-13-0x0000000074FC0000-0x000000007577C000-memory.dmp

          memory/4960-41-0x0000000005640000-0x000000000579A000-memory.dmp

          memory/4960-45-0x0000000005980000-0x0000000005B60000-memory.dmp

          memory/4960-37-0x0000000003440000-0x000000000344C000-memory.dmp

          memory/4960-33-0x0000000003400000-0x000000000342E000-memory.dmp

          memory/5076-218-0x0000000000C30000-0x0000000000DC6000-memory.dmp

          memory/5076-219-0x000000001B9A0000-0x000000001BA3E000-memory.dmp

          memory/5076-221-0x000000001C280000-0x000000001C460000-memory.dmp

          memory/5076-220-0x000000001BF40000-0x000000001C09A000-memory.dmp

          memory/5076-222-0x000000001C460000-0x000000001C5E8000-memory.dmp

          memory/5076-223-0x000000001BA40000-0x000000001BA70000-memory.dmp