Hard to crack this hash?

I have got stuck at a phpass hash that I can't seem to get the combination right to. 
I have tried both a dictionary (rockyou with some extra wordlists) 
I have tried a brute force attack 5-8 length
And also different types of masks. 

Like: 
?l?l?l?l?l?l?l?l
?3?3?3?1?1?1?1?2?2?4?4?4?4
?a?a?a?a?a?a

I have runned several different types of test hashes with a good sucess rate. 
But this one got me really stuck. Trying to find the right combination. 

Please help if your able to:
Hash: $P$BEi9BXHYxrEPv7vyLX.bKDFikBJpcc0

I don't understand, should be easy one.