search

spender-sandbox / cuckoo-modified

Modified edition of cuckoo
395 stars 178 forks source link

new Cerber hungs analysis. #385

Open Nwinternights opened 7 years ago

Nwinternights commented 7 years ago

Hi, I was trying to analyze this file MD5:3d57a47f1548dc24d8b27a34981456df and it seems that it hungs cuckoo on networkanalysis . I've noticed houndreds of DNS requests and analysis timeout . does anybody has the same behaviour? regards cuckoo_Pcap_Analysis.zip

Nwinternights commented 7 years ago

update: the analysis terminated here's the statistics: Processing ( 3086.757 seconds )

2664.322 NetworkAnalysis 395.95 Dropped 19.583 BehaviorAnalysis 4.896 Suricata 0.734 VirusTotal 0.478 Static 0.375 TargetInfo 0.251 peid 0.131 AnalysisInfo 0.029 Strings 0.006 Debug 0.002 config_decoder

Nwinternights commented 7 years ago

@doomedraven do you think is it possible to force timeout for processing tasks like the analysis timouts present in cuccko.conf?

doomedraven commented 7 years ago

yup in submision you can specify another one

KillerInstinct commented 7 years ago

Not for processing tasks. :p

Cerber has always sent thousands of UDP requests in search of a C2. The network.py processing module isn't really optimized for it. For cerber however, I just run it with a lower analysis timeout so it doesn't spend 90% of the analysis sending out thousands of requests.

Nwinternights commented 7 years ago

.....I see, so on every submission you suggest to put timeout parameters, right?

spender-sandbox commented 7 years ago

Should perhaps modify the network.py code so that it extracts reduced information (no reverse DNS etc) and clamps the number of results when entire class Cs etc are communicated with.

-Brad

doomedraven commented 7 years ago

xD sorry gaming and answering is not a good idea :D

Nwinternights commented 7 years ago

perfect, as always thanks to all for help, I'll try both solutions!!! regards

Nwinternights commented 7 years ago

instead of disabling reverse DNS on network.py I set a lower value of timeout and lifetime making processing time much faster. "if self.config.processing.reverse_dns: d = dns.resolver.Resolver() d.timeout = 0.3 d.lifetime = 0.3"