Wolfsburg had the bigger share of the game from the beginning, but the hard fighting hosts kept a clean sheet. Eight minutes into second half, Austrian international leftback Fuchs crossed the ball into the center and Hashemian, starting due to the back injury of last week's goalscorer Diego Klimowicz, beautifully rose above his marker Costa, and beat Swiss international keeper Benaglio with a great header.
It was the first Bundesliga goal of the season for the Iranian striker, who remained on the field until the final whistle.
The former Bayern Munich man almost assisted Bochum's second goal just minutes after taking them in front, when he won a duel against Madlung in the box, but Frei hammered Hashemian's serving wide from close range.
However, after the justified dismissal of Bochum's Japanese midfielder Ono, just ten minutes after Hashemian's goal, Wolfsburg's pressure increased even more and finally the visitors were rewarded with the equalizer, when Obafemi Martins headed a cross into the net.
But Bochum were able to hold on to the draw and could celebrate another important point.