Weird Brave Android requests

Every now and then Brave Android sends by itself requests to bnstatic-origin(.) olx(.) com(.) br I’m not browsing to that website. It’s been happening for at least a couple of months. What is happening? This DNS identifier is only used by Brave on my device, so it must be coming from the Brave Browser. And no, when this shows up on my dns logs I’m not browsing where ads from this domain could be displayed. Sometimes I’m not browsing anything at all. It seems to be synchronized with requests to Brave Sync.

OLX is a marketplace website btw.