Convert raw shellcode to a VBA hex string (for Macro payloads)

convert_to_vba_shellcode.py

import binascii
import sys
import io

def gen_line(hex_string):
    return f"b = b & \"{hex_string}\"\n"

with open(sys.argv[1], "rb") as asm:
    asm_hex = io.StringIO(binascii.hexlify(asm.read()).decode())
    vba = "Dim b As String\n"
    while True:
        some_hex = asm_hex.read(300)
        if not some_hex:
            break
        vba += gen_line(some_hex)
    print(vba)