Given the following vector $X$, find a non-zero square matrix $A$ such that $AX=\vec{0}$.

Question

I am incredibly confused at this question and have been trying it for multiple hours with different numbers but i cant see to get anything except for $X=\vec{0}$. I am given

$$X = \left(\begin{array}{c} 7\\ 7\\5\end{array}\right)$$

What is $A$?

Thank you in advance