Sunray Hack

TOTAL LOST $2.9M
Medium Access Control

Summarize with AI

Affected Chain 2024 Incident surface
Recovered - No recovery reported
All-Time Rank #560 By amount stolen
Protocol Type Exploit/Access control Target category

Incident Overview

On October 31, 2024, SUNRAY DEX suffered a private key compromise, allowing an attacker to gain ownership of SUN and ARC tokens. The attacker minted large amounts of these tokens and dumped them, draining DEX liquidity pairs and stealing approximately $2.855M.

The attacker exploited a compromised private key to gain control over token contracts and mint large sums of SUN and ARC tokens. These tokens were then dumped on the market, crashing their value and draining liquidity pools. The stolen funds were consolidated at 0xC4059d92…eccC9A.

Incident Report

Protocol / Project Sunray
Date of Incident
Attack Technique Access Control
Classification Exchange (DEX)
Primary Source View Post-Mortem

Protocol Information

Protocol Type Exploit/Access control
Official Website supra.com/
Protocol Twitter/X @SUNRAY_DEX
Team Anonymous
Source Code Unverified

Market Context at Time of Hack

Token Categories
Platform AI & Big Data Interoperability Oracles Smart Contracts Staking Coinbase Ventures Portfolio Analytics

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.

Technical Knowledge Operational-security tradecraft (phishing, malware, leaked seed phrases, or insider access) to obtain treasury signing authority
Capital Required Minimal capital - only enough to cover gas while draining the compromised accounts
On-Chain Access Valid signing authority over the compromised wallets / multisig signers, allowing direct transfer of funds or stake authorization
Target Reconnaissance Identification of Sunray's high-value treasury accounts and the authority / multisig structure controlling them
Execution Speed Speed to drain the compromised accounts before the team detects the breach and revokes signing authority or freezes the assets
Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Likely — with a thorough Access Control audit checklist and test coverage

If you're auditing a protocol with similar architecture to Sunray, these are the critical security checks that could have prevented this incident (October 2024).

  • Verify all logic paths related to Access Control are guarded by proper access controls and input validation - see the Access Control Attacks attack class for patterns
  • 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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Related Attack Classes

The technique used in this hack maps to these vulnerability classes in our security curriculum:

See all Access Control Attacks examples →

Sources & References

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