Browser redirecting to fake Flash installation sites

Hey guys, over the past few weeks I've had tabs in Google Chrome randomly redirect to spammy domains ending in .be (the base URLs change with every occurrence, but they are always similar) that prompts me to "update" my flash player. In addition to the scan logs, I've uploaded two screenshots of the redirected pages that I'm being led to.

Upon running MalwareByte, it found PUP.Optional.Spigot and PUP.Optional.Speedial.A, which I quarantined. However the redirections still randomly occur.

Any...

Browser redirecting to fake Flash installation sites