Incident Overview
SellToken, a Binance Smart Chain DEX, was exploited, leading to a loss of 12,000,000 $SELLC worth approximately 105,270 $USD.
An exploiter took a flashloan of 620 $BNB and performed malicious actions involving the Miner contract and PancakeSwap pool. They exploited a logic issue in the sendMiner() function of the Miner contract, stealing over 12,000,000 $SELLC tokens. These were then swapped for 446 $BNB, worth around 105,270 $USD.
All the stolen funds were transferred to another externally owned account (EOA) and subsequently swapped for $USDT.
Attacker Address:
https://bscscan.com/address/0x00601294…896089
Funds Holder Address: https://bscscan.com/address/0x4beb05bf…3abb84
Malicious Transaction: https://bscscan.com/tx/0xe968e648…23444b
Funds Transfer Transaction: https://bscscan.com/tx/0x1abca50a…2f1a05
Incident Report
Protocol Information
What the Attacker Needed to Succeed
Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.
What Auditors Should Check
If you're auditing a protocol with similar architecture to SellToken, these are the critical security checks that could have prevented this incident (June 2023).
- Verify all logic paths related to Other are guarded by proper access controls and input validation
- Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs
Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.
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