I have gotten this download, but only when I visit CNN. Each time I delete it and the next time I visit, it gets downloaded again. I have been reading CNN regularly now for at least a month, but this just started a within the last couple of days, so something has changed. I just went to their website and did a search for the file, but it yielded nothing. Then I went to their privacy policy (link at bottom of any page) and bingo! Under section IV "Cookies and Other User and Ad-Targeting Technologies.", item #3 "Locally Stored Objects." (LDO's) they explain the culprit.
They mention some LDO's using Adobe, but I don't think this is happening in this instance because I don't have Adobe installed on my phone. Shame, because there is a setting in Adobe to prevent storage on the client side (us). Unfortunately Chrome doesn't have a setting to stop this. I'm using Chrome because at least I can prevent 3rd party cookies from being set. The default Lollipop browser doesn't seem to have any management of cookies at all.
I am always am amazed how these companies have the nerve to feel this is acceptable. I have never liked the idea of any entity writing any information to my device without my consent or to make a website work properly in my browser. I had always hoped that some advocacy group (or the government) would have pushed back on the use of cookies back when they first appeared, but it never happened. It seems to have passed long ago that tracking everybody and anything is ok and we are no longer entitled to any privacy whatsoever. I'd be ok if I could op out or use a browser that blocks this stuff without breaking the page, but I haven't found one that does. Our rights are being imposed upon and there isn't any out cry. I guess this is the sad new normal. Just one of the reasons people are so feed up with politicians and the government. They are not our advocates and I'm sure they are part of the problem.