Moving Featured Images to New Blog

I'm currently trying to move my blog from one domain to another and while I managed to use the WordPress import/export tool to move over my blog posts and the images with ease, it seems to have missed the featured images used in my posts.

I'm now wondering if there's any way I could copy over the featured images to my new site and automatically link them to my posts via a SQL query or something like that.

Not sure if it's possible but any assistance would be greatly appreciated!