The Hex-Rays decompiler struggles with heavily obfuscated code (e.g., opaque predicates, control flow flattening). In such cases:
: Open your file in IDA Pro. Select the appropriate loader and processor type as prompted. ida pro decompile to c
To decompile the current function you are viewing: you are not just "translating" instructions
When you press F5 in IDA Pro, you are not just "translating" instructions; you are asking a multi-million dollar research project to reconstruct logic from the rubble of compilation. ida pro decompile to c