http://www.malwaredomainlist.com/mdl.php
http://www.malwareblacklist.com/showMDL.php
http://support.clean-mx.de/clean-mx/viruses.php
http://malshare.com/ (registration required)
http://malc0de.com/database/
https://zeustracker.abuse.ch/monitor.php?browse=binaries
http://www.sacour.cn/showmal.asp?month=8year=2012
http://malwaredb.malekal.com/ (registration required)
http://blog.urlvoid.com/new-list-of-dangerous-websites-to-avoid
http://www.scumware.org
http://www.threatlog.com
http://adminus.net (For sample requests use contact email adminus.xs(at)gmail(dot)com)
http://jsunpack.jeek.org/?list=1 (RSS feed)
http://www.malwareurl.com/ (free registration required)
http://www.offensivecomputing.net/ (malware repository, free registration required to download)
http://vxvault.siri-urz.net/ViriList.php (password required, unknown at present)
http://vxvault.siri-urz.net/URL_List.php
http://contagiodump.blogspot.com/2011/03/take-sample-leave-sample-mobile-malware.html (Mobile malware samples)
http://virussign.com/downloads.html (registration required)
http://www.nothink.org/viruswatch.php
http://dashke.blogspot.com/
http://malware.lu/ (registration required to download)
http://www.nictasoft.com/ace/malware-urls/
http://virusshare.com/
http://labs.sucuri.net/
http://freelist.virussign.com/freelist/
http://malwareurls.joxeankoret.com/normal.txt
http://malwared.malwaremustdie.org/index.php?page=1
http://ytisf.github.io/theZoo/
http://amtrckr.info/
http://malwaria.cf
http://contagiodump.blogspot.com/
http://dasmalwerk.eu/
http://www.freetrojanbotnet.com/
http://www.kernelmode.info/forum/viewforum.php?f=16
http://malshare.com/
http://avcaesar.malware.lu/
http://www.malwareblacklist.com/showMDL.php
http://ytisf.github.io/theZoo/
https://malwr.com/
http://openmalware.org/
http://ytisf.github.io/theZoo/
http://www.virusign.com/
http://virusshare.com/