A few conditions to check input
I fully emulate elf binary(even __libc_start_main) for this challenge.
Solve based on writeup from really cool guy: https://archercreat.github.io/securinets_2020_vm_rev/
Solve engine is ttexplorer: https://github.com/JonathanSalwan/ttexplore
./build/Release/triton_krackme
cat workspace/corpus/47 | xxd
00000000: 4b43 5446 7b6b 5261 436b 5f4d 335f 6f4e KCTF{kRaCk_M3_oN
00000010: 655f 305f 664c 6147 5f63 3078 735f 6241 e_0_fLaG_c0xs_bA
00000020: 7a61 727d ffff ffff 0000 0000 0000 0000 zar}............
00000030: 0000