We've managed to obtain a library that converts strings to images. Can you answer what message is hidden in this picture?

btsync: BFBMASRNTYNHT7MPHTJWVFG65IK6HR5KZ

file1 https://s3.amazonaws.com/volgactf/reverse/300/ARM_LIB.a
file2 https://s3.amazonaws.com/volgactf/reverse/300/picture.bmp