protobuf bitcoin wallet

[wash-cover-10]

hello i would like to recovery of my bitcoin wallet that was located on an android device using this software https://github.com/bitcoin-wallet/bitcoin-wallet it uses protobuf for encryption of privite key so i cant import it to another wallet without knowing my pin code it should not be hard to crack its only numbers and should not be more then 10 charaters

i followed there officail guide for recovery https://github.com/bitcoin-wallet/bitcoi...recover.md but you still need to know the pin in the last step before you import to another wallet and i have lost my pin anyone know if hashcat can crack this?