How to recover RSA messages if they are padded with spaces?

I have a message m="hunter". Let’s say we pad it with 2 spaces from the left making the final message as m_dash=" hunter".

We are given with c where c=pow(bytes_to_long(m_dash), 3, n) and n(1024 bit). n is too big to be factorised and therefore we can’t get the totient and thus ‘d’. And because of that we can’t recover our padded-message trivialy by pow(c,d,n). Is there any way I can get my message back?
Original messsage is bigger than ‘hunter’. Can’t apply cube-root attack.