>>29358098yeah, the image just looks like it was rendered oddly to bring its file size up. 4chan doesn't let you post images with embedded files, or any other form of media for that matter because of abuse of it in the past.
If you're really that worried about it though, you can clear your history and browsing cache, and restart your browser. If you didn't download it, you're fine, but it doesn't really matter either way considering you can't upload media with embedded files. Only trying to reassure
