Search PDF for words and rename that pdf with result

hi noodles,
i am desperately searching for a solution to my problem.
1. "pdf files with filenames beginning with AX_"
2. "search those pdfs for a 8-digit number starting with 423 (like 42310073)"
3. "rename that specific file with that found number starting with 423 (new filename: 42310073.pdf)
i hope someone out there can help me with this! thank you so much!
flo
i am desperately searching for a solution to my problem.
1. "pdf files with filenames beginning with AX_"
2. "search those pdfs for a 8-digit number starting with 423 (like 42310073)"
3. "rename that specific file with that found number starting with 423 (new filename: 42310073.pdf)
i hope someone out there can help me with this! thank you so much!
flo