Money Flowz

We have this challenge description:

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

Reddit

First, we can search for the name we have on a search engine:

We are directed to Reddit. Here we can see some posts from Frank Vitalik with some scams:

And this one is a scam to get “free coinz”:

The next thing to analyze is an Ethereum wallet address.

Ethereum enumeration

Especifically, we must go to an Ethereum testnet called Ropsten:

Ropsten enumeration

If we go to ropsten.etherscan.io and search for the previous address, we will see a lot of transactions:

We can filter by outgoing transactions and see only two:

Let’s inspect one of them:

Flag

Curiously, the flag is in the transaction’s input data, we can show it in UTF-8 format (HTB{CryPt0Curr3ncy_1s_FuNz!!}):