Did I hear a DX station in the last pass of International Space Station at 1505z?

I was listening to a pass of International Space Station with maximum elevation of about 37 degrees in my region. When the pass was at an azimuth 350 degrees, I could hear a station loud and clear, replying another station which was not very clear to me. My fixed elevation-azimuth Moxon Yagi had been pointed to about 45 degrees at that time. On listening to the recording I could make out that it was someone replying to A68A. But the reply from A68A was a bit weak at my end. QRZ.COM tells me that A68A is Emirates Amateur Radio Society, Sharjah. But who was it replying to him? When the space station was near the direction of the antenna, VU2TEK replied my call and I acknowledged his call as well. I could hear him couple of times after that as well.