pcwelt.de hacked, serving EK on 91.121.51.237

The forum of popular German IT news site pcwelt.de has been hacked and is sending visitors to the Angler exploit kit.

Visitors to the forum are loading up a compromised script hxxp://www[.]pcwelt[.]de/forum/map/vbulletin_sitemap_forum_13.xml.js which contains some Base64 obfuscated malicious code (see Pastebin here) which uses a date-based DGA (domain generation algorithm) to direct visitors to a URL with the following format:

[7-or-8-digit-hex-string].pw/nbe.html?0.[random-number]

The .pw domain contains Base64 encoded data which points to the payload kit, in this case [donotclick]exburge-deinothe.type2consulting.net:2980/meuu5z7b3w.php (Pastebin) which is hosted on 91.121.51.237 (OVH, France). This appears to be the Angler EK.

It looks like the EK domains rotate regularly, but the following sites can be observed on this address:

ingetrekte.valueoptimizationfrontier.com
shellshellwillbomb.type2consulting.net
voorspannenzl.valueoptimizationfrontier.com
tourmenterai.afiduciaryfirst.com
kingyoku.typetwoconsulting.com
mittelbau.typetwoconsulting.com
yogeespith1.typetwoconsulting.com
rozrzewnienie.typetwoconsulting.com
geschaeftlichen.typetwoconsulting.com
kyhtyy-pimprinum.typetwoconsulting.com
jezuietendriesthe.typetwoconsulting.com
depolitsuperconfusion.typetwoconsulting.com
degivreraitdeorganization.typetwoconsulting.com
sknktekonzile-streelsters.typetwoconsulting.com
shogunalbeschenktet.viverebenealcaldo.com
subigi.valueoptimizationfrontier.com
totalize.valueoptimizationfrontier.com
puyaljoukou.valueoptimizationfrontier.com
weisungsgemaess.valueoptimizationfrontier.com
kezune-palpitera.valueoptimizationfrontier.com
remorquervltimme.valueoptimizationfrontier.com
clackdisfundamellemting.valueoptimizationfrontier.com
doscall.type2consulting.net
pehmoilla.type2consulting.net
moariesubigissem.type2consulting.net
unvigilant-straucht.type2consulting.net
mycetozoanreassesses.type2consulting.net

It is worth noting that these domains appear to have been hijacked from a GoDaddy customer:
type2consulting.net
valueoptimizationfrontier.com
typetwoconsulting.com
afiduciaryfirst.com

The following .pw sites are live right now, hiding behind Cloudflare:
7411447a.pw
31674ec.pw
e4ae59eb.pw
95bded0e.pw

Recommended blocklist:
91.121.51.237
type2consulting.net
valueoptimizationfrontier.com
typetwoconsulting.com
afiduciaryfirst.com
7411447a.pw
31674ec.pw
e4ae59eb.pw
95bded0e.pw
(and if you can block all .pw domains then it is probably worth doing that too)

Thanks to the #MalwareMustDie crew and Steven Burn for help with this analysis.