Cracking password Oracle 12c format using hashcat

1. Download hashcat from https://hashcat.net/hashcat/ and unpack it
2. Select spare4  value from sys.user$  
   In this case for example, System Properties:
   -> Database: Oracle 12c
   -> Account: SYS
   -> Passwd: SYS
   -> SYS.USER$: NAME = 'SYS', SPARE4 = 'S:B283DCCE5DC81D2023E3304C8818646CFF434C9C2FCDD505130ED13524B4'
      This means: HASH = 'B283DCCE5DC81D2023E3304C8818646CFF434C9C', SALT = '2FCDD505130ED13524B4'
   The format is [hash 40 "chars"]:[salt] , example B283DCCE5DC81D2023E3304C8818646CFF434C9C:2FCDD505130ED13524B4
   then put in to file hash_salt.txt
3. Run the following hashcat command with m = 112 (Oracle 11g /12c) 

c:\hashcat-2.00>hashcat-cli64.exe -m 112 -a 0 -o result.txt hash_salt.txt dict.txt