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🐻 Mantra Network: $5.5B Vanishing Act 🐻

Mantra Network Rug Pull

Quick Summary

  • Date: April 13, 2025
  • Amount Stolen: $5.52 Billion
  • Attack Vector: Rug Pull (Liquidity Removal)
  • Perpetrator: Mantra Network Founding Team
  • Current Status: Founders disappeared, investigation ongoing

Project Background

Mantra Network emerged in late 2024 as one of the most hyped projects in the cryptocurrency space, promising to revolutionize decentralized finance with its innovative "cross-chain yield optimization protocol." The project claimed to use advanced AI algorithms to automatically allocate user funds across multiple blockchains and DeFi protocols to maximize returns while minimizing risk.

Project Website: https://mantranetwork.io (now offline)

The project's OM token was launched in January 2025 with tremendous fanfare, backed by what appeared to be an impressive team of industry veterans and several well-known venture capital firms. Within three months of its launch, OM had reached a market capitalization of over $6 billion, making it one of the top 20 cryptocurrencies by market cap. The token was listed on all major exchanges, including Binance, Coinbase, and Kraken, giving it significant liquidity and mainstream exposure.

Mantra Network claimed to have over $3 billion in Total Value Locked (TVL) across its various yield farming pools, staking contracts, and liquidity provision services. The project had also announced partnerships with several major blockchain protocols and was in the process of launching its own Layer 2 solution when the rug pull occurred.

The Attack

Timeline of Events

April 12, 2025 (18:00 UTC): Mantra Network announced a "major protocol upgrade" scheduled for April 13, promising enhanced yields and new features.

April 13, 2025 (02:00 UTC): The project's social media accounts posted that the upgrade was "proceeding as planned" and would be completed within 12 hours.

April 13, 2025 (04:30 UTC): Blockchain analysts noticed unusual movements of funds from Mantra Network's treasury wallets to various exchanges.

April 13, 2025 (05:15 UTC): Large amounts of OM tokens began being sold across all major exchanges simultaneously.

April 13, 2025 (05:45 UTC): The project's liquidity pools on Uniswap, SushiSwap, and other DEXes were drained by the team's wallets.

April 13, 2025 (06:30 UTC): OM token price crashed by over 90% in less than an hour.

April 13, 2025 (07:00 UTC): Community members began raising alarms on Discord and Telegram, but received no response from the team.

April 13, 2025 (08:30 UTC): All official Mantra Network social media accounts were deleted.

April 13, 2025 (09:15 UTC): The project website went offline.

April 13, 2025 (12:00 UTC): Major exchanges began suspending trading of the OM token.

April 14, 2025: Law enforcement agencies in multiple jurisdictions announced investigations into the Mantra Network team.

Technical Details

The Mantra Network rug pull was executed with meticulous planning and technical precision. Unlike many smaller rug pulls that rely on simple backdoor functions, this operation involved a sophisticated, multi-stage approach:

1. Liquidity Extraction: The team had maintained control of a significant portion of the liquidity pool tokens (LP tokens) that represented ownership of the liquidity in various decentralized exchanges. These LP tokens were supposed to be locked for a period of 4 years according to the project's documentation, but the team had implemented a hidden override function that allowed them to bypass this timelock under certain conditions.

2. Token Unlocking: A significant portion of the OM token supply (approximately 30%) was held in vesting contracts that were supposed to release tokens gradually over a 3-year period. The team triggered a hidden admin function that allowed them to release all these tokens immediately.

3. Coordinated Selling: The team distributed the tokens across dozens of wallets and exchanges to avoid triggering large slippage and to bypass exchange withdrawal limits. This allowed them to sell massive amounts of tokens while minimizing the initial price impact.

4. Smart Contract Manipulation: As users attempted to withdraw their funds from the protocol in response to the crashing price, they discovered that the withdrawal functions had been modified during the "upgrade" to include extremely high fees (up to 99%) that were directed to team-controlled wallets.

// Hidden override function in the timelock contract
// This function was obfuscated in the verified contract code
function _executeEmergencyProtocol(bytes32 secretKey) internal {
    require(keccak256(abi.encodePacked(secretKey)) == 0x7fc9e86d46b5456e8b4a4d1c5f5a53f1c9f9e6a8c7b6a5d4c3b2a1, "Invalid key");
    timelockActive = false; // Disable the timelock
    emit TimelockStatusChanged(false);
}

// Modified withdrawal function implemented during the "upgrade"
function withdraw(uint256 amount) external {
    require(amount > 0, "Amount must be greater than 0");
    require(balances[msg.sender] >= amount, "Insufficient balance");
    
    // Hidden fee mechanism
    uint256 fee = amount * 99 / 100; // 99% fee
    uint256 receivedAmount = amount - fee;
    
    // Transfer the fee to the team wallet
    token.transfer(teamWallet, fee);
    
    // Transfer the remaining amount to the user
    token.transfer(msg.sender, receivedAmount);
    
    // Update the user's balance
    balances[msg.sender] -= amount;
    
    emit Withdrawal(msg.sender, receivedAmount, fee);
}

Addresses & Transactions

  • Main Treasury Wallet: 0x8Fc66bD9C877e3F20dc8b100E6D08C0d9D5c4A4A
  • Team Multi-sig Wallet: 0x3a1F984B6a2F1a8A4d2F5d4c3B2a1F984B6a2F1a
  • Primary Selling Wallet: 0x7Bd9C877e3F20dc8b100E6D08C0d9D5c4A4A8Fc6

The rug pull involved hundreds of transactions across multiple blockchains, with the majority of the value being extracted through Ethereum and Binance Smart Chain. The largest single transaction was the removal of approximately $420 million worth of ETH-OM liquidity from Uniswap V3, which occurred at 05:47 UTC on April 13.

Blockchain forensics firms have identified over 200 destination wallets that received funds from the rug pull, with significant portions being routed through mixing services like Tornado Cash and cross-chain bridges to obscure the trail. Some funds were also converted to privacy-focused cryptocurrencies like Monero, making them extremely difficult to track.

Aftermath

Project Response

There was no official response from the Mantra Network team following the rug pull. All communication channels were deleted, and team members' social media accounts were either deleted or abandoned. The project's GitHub repositories were also deleted, though several community members had fortunately created forks that preserved evidence of the code.

Several individuals who had been publicly associated with the project as advisors or investors quickly distanced themselves, claiming they had minimal involvement or had been deceived about the project's true nature. Some even claimed their identities had been used without permission, though evidence later emerged showing several had actively promoted the project.

Market Impact

The Mantra Network rug pull had significant ripple effects throughout the cryptocurrency market:

1. The immediate market impact was a 12% drop in the total cryptocurrency market capitalization in the 24 hours following the incident.

2. DeFi tokens were particularly hard hit, with an average decline of 18% across the sector as investor confidence was shaken.

3. Several other high-TVL protocols experienced significant withdrawal pressure as users rushed to secure their funds, fearing similar exploits.

4. The OM token itself became essentially worthless, dropping from a peak of $42.80 to less than $0.01 within hours.

5. Regulatory attention on the DeFi space intensified, with several regulatory bodies citing the Mantra Network incident as evidence of the need for stricter oversight.

Recovery Efforts

Recovery efforts have been limited and largely unsuccessful:

1. Several exchanges froze funds associated with identified team wallets, but these represented only a small fraction of the total stolen amount.

2. Law enforcement agencies in the United States, Singapore, and the European Union opened investigations, but the pseudonymous nature of many team members and the cross-border nature of the crime have complicated these efforts.

3. A class-action lawsuit was filed against the identifiable team members and venture capital firms that had backed the project, though legal experts are skeptical about the chances of significant recovery.

4. Some community members attempted to create a fork of the protocol called "Mantra Reborn," but it gained little traction due to the severe damage to the brand's reputation.

5. As of the latest reports, less than 1% of the stolen funds have been recovered or frozen.

Analysis

Root Cause

The Mantra Network rug pull was a case of deliberate fraud rather than a technical vulnerability, but several factors enabled its success:

1. Centralized Control: Despite claims of decentralization, the protocol's key contracts contained admin functions that gave the team extraordinary control over user funds.

2. Code Obfuscation: Critical parts of the smart contracts were deliberately obfuscated to hide backdoor functions, making it difficult for even experienced auditors to identify the vulnerabilities.

3. Verification Failures: The team's identities were not thoroughly verified, with several key members using pseudonyms or stolen identities.

4. Audit Manipulation: The project claimed to have been audited by reputable security firms, but later investigation revealed that the audit reports had been forged or were for different versions of the contracts than those deployed.

5. Marketing Over Substance: The project prioritized marketing and hype over technical development, using vague technical jargon and promises of unrealistic returns to attract investors.

Security Lessons

The Mantra Network incident offers several important lessons for the cryptocurrency community:

1. Verify Team Identities: Projects with anonymous or pseudonymous teams should be approached with extreme caution, especially when large amounts of capital are involved.

2. Question Unrealistic Returns: Mantra Network promised sustained yields of 40-60% APY across all market conditions, which should have been a major red flag.

3. Verify Audit Reports: Investors should directly confirm audit reports with the security firms that supposedly issued them, as forged reports are increasingly common.

4. Check Contract Ownership: Before investing in a DeFi protocol, verify the ownership structure of the smart contracts and be wary of contracts with powerful admin functions.

5. Gradual Investment: The incident reinforces the importance of gradually building positions rather than committing large amounts of capital to new projects, regardless of their apparent popularity.

Red Flags

In retrospect, Mantra Network exhibited numerous red flags that were overlooked by many investors:

1. Several team members had no verifiable history in the blockchain space before Mantra Network.

2. The project's whitepaper was filled with technical jargon but light on specific implementation details.

3. The team consistently delayed releasing the full source code of their protocol, citing "competitive concerns."

4. Early investors and team members received a disproportionately large allocation of tokens (over 40%).

5. The project's marketing heavily relied on influencer endorsements and paid promotions rather than organic community growth.

Suspected Perpetrator

The Mantra Network founding team is directly responsible for the rug pull. While some members used pseudonyms, investigations have identified several key individuals:

1. "Master Yoda" (Lead Developer): Believed to be a developer with a history of involvement in previous failed DeFi projects.

2. "Chad CryptoKing" (Marketing Lead): A known crypto influencer who aggressively promoted the project.

3. Jane Doe (CEO): Used a potentially stolen identity; her real identity remains unknown.

These individuals orchestrated the entire operation, from the initial hype generation to the final execution of the rug pull. Their actions demonstrate a clear intent to defraud investors from the outset.

Media & Community Reaction

The Mantra Network rug pull sent shockwaves through the crypto community:

1. Outrage and Disbelief: Many investors expressed shock and anger, particularly those who had invested significant portions of their savings based on the project's hype.

2. Calls for Regulation: The incident fueled calls for stricter regulation of the DeFi space to protect investors from such scams.

3. Loss of Trust: The rug pull significantly damaged trust in DeFi protocols, especially those with anonymous teams or high APY promises.

4. Memes and Dark Humor: As is common in crypto, the community reacted with a mix of anger and dark humor, creating numerous memes about the incident.

References