ctf-writeup/2023/ASC Cyber Wargames Qualification 2023/Track a coin from your crypto O valley of plenty

Track a coin from your crypto O valley of plenty

During the investigation in one of the cases, our forensics analysts were tasked with tracing the following transaction hash which occured on a trial network, and get the first address who sent money. Could you find that address? Transaction Hash:0xa150ff06619b927cc323f16984a679a24b07265f1c1a664f1c729177929cebae

About the Challenge

We need to find the first wallet address who sent money using the transaction hash

How to Solve

First we analyze the transaction hash it's look like a ethereum. But the ethereum has network testnet which is has different transaction hash.

I search some the testnet and i found this

After some attemps, i know the transaction hash is from Sepolia testnet, you can use this web to track the transaction hash Sepolia Etherscan

And i found the transaction hash details

Then i do some scrolling and found the first wallet address who's have sent the money

ASCWG{0xEDaf4083F29753753d0Cd6c3C50ACEb08c87b5BD}