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Encrypted cryptowall crypto wall files - any chance I could crack a couple of the files?

A machine got hit with crypto wall.  we have a backup from a couple weeks ago so there's only a few files that were recently updated / created since that backup.  

Don't want to pay the $700 (or actually, anything) to the hackers.

Any chance those few files can be decrypted with today's computers in days or weeks?  Would you crack 1, then get the key and apply it to the other files?

How would I begin to do this?  Can I do it concurrently on a few machines?

thanks!
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☠ MASQ ☠

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btan

agree with the experts, and in experienced of such and seen so much of these queries in EE forum, none has managed to decrypt it unless paid the ransom. I definitely support not paying and work off the backup and clean up those machines. It is not wise to attempt even though there are past decryption services which is still due to "overlooks" or part of intercepted keys - in nutshell, no guarantee at all. One good reference is from BleedingComputer which the EE article also has has more info on recovery steps. Do watch out for your mapped network file and review them as required for those infected machine
http://www.bleepingcomputer.com/virus-removal/cryptowall-ransomware-information#shares
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thanks guys but this is a proof of concept / mental health issue for me.  I dropped the ball on monitoring the backup and that's why they lost the last couple months of data.  For good or bad, it's not that many files, but I still look bad.

But googling 'brute force RSA 2048', seems it's not even weeks / months with today's processors?
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thanks : (