Technologies pertaining to analyzing content extracted from web pages by a static crawler to determine whether respective web pages are members of a malware distribution network (MDN) are described. A set of features is learned based upon output of a dynamic crawler over known landing pages of a particular MDN, wherein the set of features are indicative of membership in the MDN. Using such set of features, additional members of the MDN (not subjected to crawling by a dynamic crawler) are identified.