$ ctf42

Peel_That_Off

Forensics weight 23.42 No technique tags yet.
Difficulty Not rated yet

Flag format: RUSEC{...}

glqce We just identified a scam cluster cashing out! Looks like the cluster is peeling off funds starting from this transaction:

88617a44b501b2aa2ed1001a94fccbafb126578c5c2e696b20ae91dcc2a93e0a

Can you trace through the transactions and find the end of the peel chain? Upload the transaction with the last traceable transaction in the peel chain that we can attribute as the actor from our scam cluster! These types of peels can take a while and we want to know what service was used. We believe one of the receiving addresses will be a deposit address controlled by a cryptocurrency exchange, so upload the date of the transaction in the format MM/DD/YYYY as well as the name of the exchange that is associated with one or more of the receiving addresses in the final transaction on the peel chain.

FLAG FORMAT: RUSEC{hash:date:exchange}

For example, if you think the transaction hash is 49100341fe8d99bd1ed7cec22edf0ec63d6920a01627e34249b2dfb3c464bca0, the date is January 2nd, 2026, and one of the receiving parties is a deposit address belonging to Kraken, upload it in the format:

RUSEC{49100341fe8d99bd1ed7cec22edf0ec63d6920a01627e34249b2dfb3c464bca0:01/02/2026:kraken}

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