Analysis

  • max time kernel
    149s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 17:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261102-vrhcfady7l
  • SHA256 fd29c0c8055e7924802396152c394192fc6f6b1a0a78a6727eb600a6ddf2ea75
  • 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 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:3572
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\4a274c4b459d3342\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:4548
  • 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:5908
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AEA10509A4E8AAF12EC7C57DE85BCEEF C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF2B3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240775953 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3708
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF97A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240777625 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:3836
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFF67.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240779156 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5464
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:6064
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 072214E4BFBE59585B805EB9E940A2E5
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2136
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 397A53F85983E45BEDC11C26E9D3A19D E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1276
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:700
    • C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-w2k9f7-relay.screenconnect.com&p=443&s=91254a7a-02de-4f19-8bac-301a9d9fd5c5&k=BgIAAACkAABSU0ExAAgAAAEAAQBt7WlPK5kEXd9i5HijASi5sF7Wo1QEbu7dmhNPwEiMUWI0Aj%2fHzgBKSYxrmT8CJxDhZbVqsmzkULGDZVpeUhETzfuDHMlKqiSFMtlx6izTG7E7imYGHSUZHGyPsvC%2bj824Xw%2bLZNXCHioFDiTelBHnZU5f2IiaCluc2eWp8mFDkB0pNu%2bVceQ5J5rIkjifePtfUIOKFz2cQxKfZq%2fgv7ii%2bIaL%2fbsA0HJwVoKty9XVhdT9yMu8k4hX8F%2fth8w2Z1tjPSLcvfGq8IbpZOPXo%2bdv19yC5RCTIwoTdRDVvlm5ZLAoGHsXkM%2bq%2fexKGh9ef2yWXwsbtF1fJLLzTnKYI7S6&c=DDLSC&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:4540
      • C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe" "RunRole" "74126a81-4f58-47e9-adf4-bfa949b94bab" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2460
      • C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe" "RunRole" "7c2e7e44-1136-4f62-86c4-7ddc02910ca7" "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:3304

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a470e.rbs

          • Path C:\Config.Msi\e5a470e.rbs
          • Size 214KB
          • SHA256 a3e211531e2b01f28dee3259a19b022fff630a0fdeb5a4d4eaf0816f985bc853
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\Client.en-US.resources
          • Size 65KB
          • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe
          • Size 689KB
          • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\system.config
          • Size 966B
          • SHA256 624f3ca1906b0de092fbadbf0e5ab65bfa2b56bce5560f7df46cede9592e3191
          • MD5 SHA1 SHA512 TLSH

          MSIF2B3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF2B3.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF2B3.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF2B3.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF2B3.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF2B3.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF97A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF97A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\4a274c4b459d3342\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 68c31d1a298eec1237bd7445a3eb7a02a22ed0ffa55e0b68f31f2837f1c69213
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI4D57.tmp

          • Path C:\Windows\Installer\MSI4D57.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          qk3rvueg.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4a274c4b459d3342)\qk3rvueg.newcfg
          • Size 683B
          • SHA256 70af1fefa08c4b57ba4c70361bb2157d74e471a793dfa93d16f2697937543a9f
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4a274c4b459d3342)\user.config
          • Size 520B
          • SHA256 b012e6211a834d80955b53b2192df8933fe511672475b487439d386bcab54b59
          • MD5 SHA1 SHA512 TLSH

          xyr10lfy.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4a274c4b459d3342)\xyr10lfy.newcfg
          • Size 883B
          • SHA256 9a99bf6fd873d60aa4149a1cda75b073f22d9581f3442247c849d25bdb433370
          • MD5 SHA1 SHA512 TLSH

          memory/2460-206-0x0000000000920000-0x00000000009D0000-memory.dmp

          memory/2460-225-0x000000001BFE0000-0x000000001C168000-memory.dmp

          memory/2460-226-0x0000000002B30000-0x0000000002B71000-memory.dmp

          memory/2460-230-0x000000001CE70000-0x000000001D03A000-memory.dmp

          memory/2460-224-0x0000000001240000-0x000000000125A000-memory.dmp

          memory/2460-222-0x000000001BA50000-0x000000001BAE6000-memory.dmp

          memory/2460-221-0x000000001B5E0000-0x000000001B64C000-memory.dmp

          memory/2460-223-0x000000001BCA0000-0x000000001BE50000-memory.dmp

          memory/3304-228-0x0000000003270000-0x00000000032B1000-memory.dmp

          memory/3304-229-0x000000001D270000-0x000000001D43A000-memory.dmp

          memory/3572-12-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/3572-7-0x0000000006040000-0x00000000065FA000-memory.dmp

          memory/3572-6-0x00000000058C0000-0x0000000005A70000-memory.dmp

          memory/3572-8-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/3572-9-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/3572-4-0x0000000074D20000-0x00000000754DC000-memory.dmp

          memory/3572-5-0x0000000005890000-0x00000000058B8000-memory.dmp

          memory/3572-0-0x0000000074D32000-0x0000000074D33000-memory.dmp

          memory/3572-3-0x00000000057E0000-0x0000000005876000-memory.dmp

          memory/3572-2-0x0000000005770000-0x000000000577C000-memory.dmp

          memory/3572-1-0x00000000031C0000-0x00000000031C8000-memory.dmp

          memory/3708-36-0x0000000003620000-0x000000000362C000-memory.dmp

          memory/3708-44-0x00000000059E0000-0x0000000005B90000-memory.dmp

          memory/3708-40-0x0000000005790000-0x0000000005826000-memory.dmp

          memory/3708-32-0x0000000003630000-0x000000000365E000-memory.dmp

          memory/3836-74-0x0000000003510000-0x0000000003538000-memory.dmp

          memory/4540-200-0x00000000040B0000-0x0000000004186000-memory.dmp

          memory/4540-198-0x0000000003BE0000-0x0000000003C21000-memory.dmp

          memory/4540-196-0x0000000003EC0000-0x0000000003F52000-memory.dmp

          memory/4540-195-0x0000000003E50000-0x0000000003EBC000-memory.dmp

          memory/4540-174-0x0000000003B90000-0x0000000003BE0000-memory.dmp

          memory/4540-161-0x0000000003CA0000-0x0000000003E50000-memory.dmp

          memory/4540-157-0x0000000003A50000-0x0000000003AE6000-memory.dmp

          memory/4540-151-0x0000000003990000-0x00000000039AA000-memory.dmp