This wallet was mine, in 2012 I bought some BTC than I wasnt very educated and I forget the password, but all my passwords at that time was only number and some number and letter without capital letter, I shared it before with 3 guys that claimmed be able to brute force but till now nothing happenned and the funds are still in the hash, may someone here find and we will have a good time on it.
It means some of those people have violated your secrecy.
But I am surprised that the wallet has not been cracked yet given that it is between 4-8 chars with only numbers and letters. That would be easy fodder for Hashcat and a lone (high-end) GPU. Are you sure these are the exact constraints of the password? Maybe there could be some non-latin characters that you have forgotten about?
Exactly.
Checking 1-8 digits is trivial. To check 6 characters lowercase+digits takes around 2h on 7x 3090 using hashcat. If OP gave that wallet to open long time ago, I believe there is at least one person who checked that possibilities. There is of course always a chance that password has 9 characters... no?
Anyway, if one of you wants to try hashcat, this is the configuration:
Save wallet hash into file (
hash.txt):
$bitcoin$64$011f6abdec8e23032b7eb1298ed661fb9ebcd7388b3963b527a2923cce6800ea$16$e4aa72cd2bfa00cd$68014$2$00$2$00
Commands for hashcat to launch search of digits + lowercase letters, passwords 6, 7 and 8 characters long:
./hashcat.bin -m 11300 -a 3 -w 3 -o result.txt hash.txt -1 ?l?d ?1?1?1?1?1?1
./hashcat.bin -m 11300 -a 3 -w 3 -o result.txt hash.txt -1 ?l?d ?1?1?1?1?1?1?1
./hashcat.bin -m 11300 -a 3 -w 3 -o result.txt hash.txt -1 ?l?d ?1?1?1?1?1?1?1?1
Good luck!