Cracking

i opened the .bin file, it give the codes of assembly language . its just commands, how can i extract password from that codes? any hint?

Use Hopper Disassembler or Ida Pro and generate pseudo-code and analyze any patterns in regards to a flag. You also, read x86 assembly documentation to understand and analyze code. Here are a couple of assembly langauge tutorials: https://www.tutorialspoint.com/assembly_programming/index.htm, https://en.wikibooks.org/wiki/X86_Assembly.
I hope you find this useful.
Regards
Jorkano