Null Key Result

[jl198]

I'm attempting to crack an old Itunes Backup Manifest.plist file and am running into some issues.  This will "crack" the hash, but the result is always an empty (possibly null) key/password in the output file and potfile.  I'm running this command:

Code:

hashcat -m 14700 -a 0 -w 2 --f --keep-guessing manifest.txt rockyou.txt -o itunes_backup2hashcat/cracked.txt

Any suggestions would be greatly appreciated.  I've tried several other commands but haven't succeeded yet.  I spent quite some time uninstalling and reinstalling my drivers today, so I'm hoping that isn't the issue.

TIA!