Long constant strings within the mask (especially at the beginning of the mask) are always bad for the performance.
You could try to use different attack modes, like -a 6:
where dict.txt contains this (the prefix):
$HEX[3cb8230a00000000]
You could try to use different attack modes, like -a 6:
Code:
hashcat -m 1400 -a 6 -w 3 -O --hex-charset hash.txt dict.txt "?b?b?b?b?b?b7c31"
where dict.txt contains this (the prefix):
$HEX[3cb8230a00000000]