[wdr1]

As others have pointed, it doesn't look like this a Google ad. However, as a publisher, you do have a fair bit of control. You can choose to only allow text ads, and you can also block specific advertisers, categories & the like.

https://support.google.com/adsense/answer/180609?hl=en

[r1ch]

Unfortunately even the simple HTML 5 image ads (rendered using canvas) can have malicious scripts in them. The only way to stop the bad ads would be to only use text ads from Google which would likely lead to unsustainable revenue loss.