# Entropy (use binwalk or custom script) binwalk -E pc.exe # High entropy sections → packed or encrypted payload The binary is with a custom packer. The entry point is not the usual mainCRTStartup ; it jumps to a stub that decompresses an embedded payload into memory and then executes it. 4. Static Analysis – Unpacking the Stub 4.1. Identify the packer stub Open the binary in radare2 (or Ghidra ) and locate the entry point:
http://www.kkmoom.com/pc.rar Inside the archive lies a Windows PE executable named pc.exe . The binary, when executed, prints a garbled string and then terminates. Somewhere inside the binary (or in its execution) is a of the form FLAG… . www kkmoom com pc rar
[0x00401000]> pdf @ sym.main The decompiled pseudo‑code (via Ghidra) shows: # Entropy (use binwalk or custom script) binwalk -E pc