SSL Malvertising Campaign Continues (UPDATED)

Update 08/14: The campaign has moved to another advertiser (AOL) and new Azure domain:

Malvertising URL:

imp.bid.ace.advertising.com/{redacted}pmcpmprice=0.545/{redacted}dref=http://www.ebay.com/sch/i.html?_nkw=jazzy+wheelchair+battery&_pgn=3&_skc=100&rt=nc

First redirection (Azure website)

v5tr34-a09.azurewebsites.net/?=a09vv5vtrkp

Second redirection

mbiscotti.com/?Xz29TuVbablQc

Angler exploit kit

abgzdbergzr.jeppe.iemooentypo.com/{redacted} abgzdbergzr.le9.anguoanti-malware.net/abgzdbergzr/{redacted}

Our telemetry captured this malvertising on eBay.com and the cost per thousand impressions (CPM) for this ad was $0.545. Visitors that were served that ad were redirected to the Angler exploit, known for dropping ransomware and ad fraud malware.

– – Original story —

The actors behind the recent Yahoo! malvertising attack are still very much active and able to infect people who browse popular websites.

We have been tracking this campaign and noticed that is has recently moved to a new ad network used by many top publishers.

weather.com 121M visits per month
drudgereport.com 61.8M visits per month
wunderground.com 49.9M visits per month
findagrave.com 6M visits per month
webmaila.juno.com 3.6M visits per month
my.netzero.net 3.2M visits per month
sltrib.com 1.8M visits per month

Stats according to SimilarWeb.com

The malvertising is loaded via AdSpirit.de and includes a redirection to an Azure website. Note how both URLs are using HTTPS encryption, making it harder to detect the malicious traffic at the network layer.