If the password was generated in password generator - forget about it, it's almost impossible.
Everyone knows the standard for passwords today has to be alphanumeric which has to have a combination of some Upper case and special characters to qualified a strong password.
Are you hoping to crack the Wallet by brute force with passwords like qwerty, 12345, password etcetera tbh I don't think you would have much luck here unless you have something no one has heard of....
Brute force attack with “stupid password” dictionary – good joke ))) but in some very rare circumstances may have a right for life )))