Help cracking packet encryption

[shadow125]

Ok so I have this .pcap file with wifi packets that are encrypted, I'm pretty sure they contain an username and password I'm looking for and as far as I know it seems to be encrypted with the old wep standard, but I have no idea what softwares to use. Will aircrack do the job?
I'm reading more about the 802.11 protocol and I have Kali Linux installed, any help is appreciated.

[khofo]

if it's wep why bothering with a pcap file. It's the most basic wifi hack, there are millions of tutos online to break WEP.

[shadow125]

yeah but I'm not interested in the wi-fi key, I want the files that were transfered over the network
all the tutorials i see are about cracking the key, but I don't know how to extract the files

[matt_9908]

I am pretty sure that if you used the advantages of any search engine, it wouldn't take you more than twenty seconds to find out it is airdecap-ng what you are searching for.

[khofo]

Also if the network is wep, it would be much much more convenient to get access to the Network and then sniff/MiTM/DNS Spoof, etc. It makes much more sense than intercepting packets, and keep in mind if the packet is encrypted, what's inside might also be, it's unlikely that creds are put in plain text inside the packet

[proxx]

yeah but I'm not interested in the wi-fi key, I want the files that were transfered over the network
all the tutorials i see are about cracking the key, but I don't know how to extract the files

You can plug the key into wireshark and decrypt on-the-fly, check out the 802.11 stuff in the menu.
That is what you seek isnt it?
(Wireshark can either do it live with a mon IF or with a PCAP)