Moby Trade, FEG, and AST Token Exploited for $3.5M via Key Leaks, Whitelist Bypass, and Burn-Based Price Games
Moby Trade lost $2.5M after a private key compromise let attackers upgrade vault contracts. FEG was drained for $1M when an attacker self-whitelisted in a relayer contract with no access control. AST Token was hit for $65K through price manipulation via reserve burns in the transfer logic.
In Brief
AST Token was targeted in a $65K price manipulation attack.
Moby Trade suffered a $2.5M private key compromise.
FEG lost $1M due to missing access control in the relayer whitelist function.
Hacks Analysis
AST Token | Amount Lost: $65K
On January 21st, the AST token exploit on the Binance Smart Chain resulted in a $65K loss due to a price manipulation vulnerability. The attacker exploited the private _transfer() function which burned AST tokens from the liquidity pool. This caused the AST reserves in the pool to drop significantly, artificially inflating its price. The attacker then swapped AST tokens for USDT at the manipulated price and made a profit.
Exploited Contract (on BSC): 0xc10e0319337c7f83342424df72e73a70a29579b2
On January 8th, the Moby Trade exploit on the Arbitrum chain resulted in a $2.5M loss due to a private key compromise. The attacker gained control of proxy admin keys and upgraded vault contracts to withdraw assets. The attack targeted Moby Trade’s S_VAULT and M_VAULT. A white hat team from SEAL911 intervened to rescue $1.47M USDC. The Moby Trade team has acknowledged the incident and started investigations.
Press enter or click to view image in full size
Ownership Transfer Transaction (on Arbitrum): 0x9da34da770f1e9c5d5e176578b32710d8e288587d8401582f34a9631edf9be4b
Funds Transfer Transaction: 0xfb260f58332034fe203a41b031c41b8461f469e46d5632b33b328f22aed1fb42
FEG Token | Amount Lost: $1M
On December 29th, the FEG Token exploit on the Binance Smart Chain resulted in a $1M loss. The root cause of the exploit was missing access controls in the relayer’s whitelist function. The attacker added their contract to the whitelist without verification and set a withdrawable balance. The attacker withdrew the tokens without depositing any on the source chain and swapped them for BNB.
Press enter or click to view image in full size
Press enter or click to view image in full size
FEG Relayer Contract (unverified, on BSC): 0x3A3709b8c67270A84Fe96291B7E384044160C6b1
The rich text element allows you to create and format headings, paragraphs, blockquotes, images, and video all in one place instead of having to add and format them individually. Just double-click and easily create content.
A rich text element can be used with static or dynamic content. For static content, just drop it into any page and begin editing. For dynamic content, add a rich text field to any collection and then connect a rich text element to that field in the settings panel. Voila!
Headings, paragraphs, blockquotes, figures, images, and figure captions can all be styled after a class is added to the rich text element using the "When inside of" nested selector system.
Follow-up: Conduct a follow-up review to ensure that the remediation steps were effective and that the smart contract is now secure.
Follow-up: Conduct a follow-up review to ensure that the remediation steps were effective and that the smart contract is now secure.
In Brief
Remitano suffered a $2.7M loss due to a private key compromise.
GAMBL’s recommendation system was exploited.
DAppSocial lost $530K due to a logic vulnerability.
Rocketswap’s private keys were inadvertently deployed on the server.
Hacks
Hacks Analysis
Huobi | Amount Lost: $8M
On September 24th, the Huobi Global exploit on the Ethereum Mainnet resulted in a $8 million loss due to the compromise of private keys. The attacker executed the attack in a single transaction by sending 4,999 ETH to a malicious contract. The attacker then created a second malicious contract and transferred 1,001 ETH to this new contract. Huobi has since confirmed that they have identified the attacker and has extended an offer of a 5% white hat bounty reward if the funds are returned to the exchange.
