Is there a way to crack Rijndael-256?

[Kryptonian]

L encrypted a file with Rijndael-256. After l forgot my password. Is there a attack to Rijndael-256?

Is a encrypted file properties:

Rijndael = Key size: 256, Block size: 256, Mode: ECB.

Key = With SHA-256 Hashed key.

Help me

My English is bad.

 

[HardReset]

No. You might use brute force approach if you have at least some clue about password.

If you have absolutely no idea about password, then forget it.