Wallet.dat recovery
#2
https://hashcat.net/wiki/doku.php?id=hashcat has all the answers you're looking for.

1. See -help: Usage: hashcat [options]... hash|hashfile|hccapxfile [dictionary|mask|directory]...
2. Hashcat has 3 status' : Running, Cracked, Exhausted
3. Also on the wiki https://hashcat.net/wiki/doku.php?id=mask_attack
4. Also on the wiki https://hashcat.net/wiki/doku.php?id=rule_based_attack
5. Also on the wiki https://hashcat.net/wiki/doku.php?id=restore

Bitcoin wallets are a very slow hash, unless you have a general idea of what your password is with very few alterations you should have no issues recovering it. Bruteforcing a wallet is nearly impossible after guessing more than 5 characters so again as I mentioned, unless you have a general idea you're not going to have any luck bruteforcing a large keyspace. 

To get a general idea of your timespan heres the example hash  running rockyou.txt /w best64.rule on 1070. 
Code:
Session..........: hashcat
Status...........: Running
Hash.Type........: Bitcoin/Litecoin wallet.dat
Hash.Target......: $bitcoin$96$d011a1b6a8d675b7a36d0cd2efaca32a9f8dc1d...760525
Time.Started.....: Fri Jan 10 16:51:04 2020 (3 secs)
Time.Estimated...: Tue Jan 14 22:19:39 2020 (4 days, 5 hours)
Guess.Base.......: File (rockyou.txt), Left Side
Guess.Mod........: File (rules/best64.rule), Right Side
Speed.#1.........:    4005 H/s (5.91ms) @ Accel:64 Loops:16 Thr:256 Vec:1
Recovered........: 0/1 (0.00%) Digests, 0/1 (0.00%) Salts
Progress.........: 0/1463127168 (0.00%)
Rejected.........: 0/0 (0.00%)
Restore.Point....: 0/14344384 (0.00%)
Restore.Sub.#1...: Salt:0 Amplifier:0-1 Iteration:7136-7152
Candidates.#1....: 123456## nothing, reverse, case... base stuff -> dolphins6## nothing, reverse, case... base stuff
Hardware.Mon.#1..: Temp: 37c Fan: 23% Util: 97% Core:2075MHz Mem:4104MHz Bus:16
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Messages In This Thread
Wallet.dat recovery - by Frang - 01-10-2020, 05:07 PM
RE: Wallet.dat recovery - by slyexe - 01-11-2020, 12:56 AM
RE: Wallet.dat recovery - by Frang - 01-11-2020, 10:28 AM
RE: Wallet.dat recovery - by slyexe - 01-12-2020, 03:07 AM
RE: Wallet.dat recovery - by digitalhussar - 02-16-2020, 09:27 PM
RE: Wallet.dat recovery - by roma - 09-23-2021, 06:43 PM
RE: Wallet.dat recovery - by z. - 12-29-2021, 11:11 PM
RE: Wallet.dat recovery - by bitcoinpassword - 03-13-2022, 08:56 PM
RE: Wallet.dat recovery - by monyanus - 03-17-2022, 11:53 AM