You can try fill a request with Google to have it removed from web and image search:
https://support.google.com/legal/troubleshooter/1114905

Select:
- What Google product does your request relate to? Web Search
- What can we help you with? I have a legal issue that is not mentioned above
- Choose from the following options. I have found content that may violate my copyright
- Are you the copyright owner or authorised to act on his/her behalf? Yes, I am the copyright owner or am authorised to act on behalf of the owner of an exclusive right that is allegedly infringed
- What is the allegedly infringing work in question? Image/Video

Good luck!

They just sweep for available files online.  It's bait for their malware.  Your images are not in danger.