Money Flowz

Platform: HackTheBox | Category: OSINT | Difficulty: Easy | Author: D3v0o0Nu11 | Date: 2026-02-10

Description

Frank Vitalik is a hustler, can you figure out where the money flows?

Solution Approach

Core idea: Identify the weakness from source review or fingerprinting first. Iterate with incremental payloads instead of guessing.

Steps

1. Let's googled name Frank Vitalik on the internet.

2. Got a promising result.

3. Open the link.

4. Looks like there's 2 links given.

5. Let's check the bottom one.

6. From here we got clue.

7. The ropsten should be refer to -> ropsten.etherscan.io

8. Now paste the address we got on the website.

9. Let's check the outgoing transcation.

10. Check the first one.

11. Convert the input data to UTF-8.

12. Got the flag!

Flag

REDACTED

Lessons Learned

1. Identify the weakness from source review or fingerprinting first.
2. Iterate with incremental payloads instead of guessing.
3. Reuse the same pattern in future engagements.