Narwhal Hack

Reported loss $1.6M
Other

What happened

Narwhal's NRW token experienced two major sell-offs on BNB Chain in January 2024, removing approximately $1.5 million in assets. The project called the incident a hack. CertiK traced connections between both flows and the deployer's associated wallets, concluding that an exit scam was more likely.

Technical root cause

The second withdrawal authenticated a signature against a signer address changed by the contract creator shortly beforehand. This shows how the withdrawal was authorized, but does not establish a stolen key. CertiK's likely-exit-scam conclusion also relied on links to the separate token consolidation and sale.

How it happened

  1. A wallet consolidated NRW from hundreds of funded wallets and sold the tokens.
  2. A second withdrawal used an accepted signature to remove NRW from a contract created by the Narwhal deployer.
  3. Proceeds from the sell-offs were linked and bridged to Ethereum, where funds entered Tornado Cash.
  4. CertiK connected both flows to wallets associated with the deployer.

Protocol details

Classification Token
Protocol Type Exploit/Other
Affected asset / contract NRW
Protocol links @Narwhal_fyi

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