like this
openssl enc -aes-256-cfb -d -in wlinsurance-20130815-A.aes256 -out wlinsurance-20130815-A -pass 'pass:Berlin?A!Collection+Of#Documents@Containing~Emails%FromUSA=A0F0'
aes-256-cfb makes this seem like a 100% LARP
want to bruteforce? try https://github.com/glv2/bruteforce-salted-openssl