Copy Nintex form's file attachments to network folder

I have a Nintex form that requires a file attachment. I need to move the attachment(s) to a network share. It will then be processed by a vendor solution that we use. Moving it to a SharePoint document library will not make it accessible to this vendor solution - it has to live on a network folder. Is there a way to do this via a workflow or will the user have to manually save files off to the network folder? I also need to grab the filename(s) so I can associate the SharePoint list item with the correct file attachment(s). I am using SharePoint 2013 and Nintex On Prem. I appreciate any direction on this.