MafaCoin Token Logo

MAFA [MafaCoin] Token

ALERT: honeypot scam

About MAFA

Listings

Token 8 months
CoinMarketCap 7 months
white paper

NFT Game with mafagafos, for PC, android and ios, already in beta

Social

Laser Scorebeta Last Audit: 2 March 2022

report
Token seems to be a scam (type: honeypot scam).


Contract creator or owner is blacklisted for past scams

MafaCoin._addLiquidity(uint256,uint256) (contracts/Mafacoin.sol#176-187) sends eth to arbitrary user
Dangerous calls:
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in MafaCoin._transfer(address,address,uint256) (contracts/Mafacoin.sol#189-263):
External calls:
- _swapAndLiquify(tokensToLiquidity) (contracts/Mafacoin.sol#249)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
- dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#167-173)
External calls sending eth:
- _swapAndLiquify(tokensToLiquidity) (contracts/Mafacoin.sol#249)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
State variables written after the call(s):
- super._transfer(from,to,taxedAmount) (contracts/Mafacoin.sol#258)
- _balances[sender] = senderBalance - amount (@openzeppelin/contracts/token/ERC20/ERC20.sol#233)
- _balances[recipient] += amount (@openzeppelin/contracts/token/ERC20/ERC20.sol#235)
- swapping = false (contracts/Mafacoin.sol#261)
Apply the check-effects-interactions pattern.

Additional information: link

TimeLockedWallet.withdraw() (contracts/TimeLockedWallet.sol#35-41) ignores return value by token.transfer(toWallet,tokenBalance) (contracts/TimeLockedWallet.sol#39)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

MafaCoin.isBlacklisted (contracts/Mafacoin.sol#38) is never initialized. It is used in:
- MafaCoin._transfer(address,address,uint256) (contracts/Mafacoin.sol#189-263)
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link


Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.


Combination 2: Unchecked transfer + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Contract locking ether found:
Contract TimeLockedWallet (contracts/TimeLockedWallet.sol#8-61) has payable functions:
- TimeLockedWallet.fallback() (contracts/TimeLockedWallet.sol#27-29)
- TimeLockedWallet.receive() (contracts/TimeLockedWallet.sol#31-33)
But does not have a function to withdraw the ether
Remove the payable attribute or add a withdraw function.

Additional information: link


Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Context._msgData() (@openzeppelin/contracts/utils/Context.sol#20-22) is never used and should be removed
ERC20._burn(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#274-289) is never used and should be removed
Pausable._pause() (@openzeppelin/contracts/security/Pausable.sol#74-77) is never used and should be removed
Pausable._unpause() (@openzeppelin/contracts/security/Pausable.sol#86-89) is never used and should be removed
SafeMath.div(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#190-199) is never used and should be removed
SafeMath.mod(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#150-152) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#216-225) is never used and should be removed
SafeMath.sub(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#167-176) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#21-27) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#63-68) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#75-80) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#46-56) is never used and should be removed
SafeMath.trySub(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#34-39) is never used and should be removed
Remove unused functions.

Additional information: link

Function IUniswapV2Router01.WETH() (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#5) is not in mixedCase
Parameter MafaCoin.setTeamWallet(address)._newWallet (contracts/Mafacoin.sol#84) is not in mixedCase
Parameter MafaCoin.setLotteryWallet(address)._newWallet (contracts/Mafacoin.sol#89) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

MafaCoin.deadAddress (contracts/Mafacoin.sol#20) should be constant
MafaCoin.tSupply (contracts/Mafacoin.sol#34) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

MafaCoin._addLiquidity(uint256,uint256) (contracts/Mafacoin.sol#176-187) ignores return value by dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
Ensure that all the return values of the function calls are used.

Additional information: link

MafaCoin.setLiquidyFee(uint256) (contracts/Mafacoin.sol#94-98) should emit an event for:
- liquidityFee = newFee (contracts/Mafacoin.sol#95)
MafaCoin.setBurnFee(uint256) (contracts/Mafacoin.sol#100-104) should emit an event for:
- burnFee = newFee (contracts/Mafacoin.sol#101)
MafaCoin.setTeamBuyFee(uint256) (contracts/Mafacoin.sol#106-109) should emit an event for:
- teamBuyFee = newFee (contracts/Mafacoin.sol#107)
MafaCoin.setTeamSellFee(uint256) (contracts/Mafacoin.sol#111-114) should emit an event for:
- teamSellFee = newFee (contracts/Mafacoin.sol#112)
MafaCoin.setLotteryFee(uint256) (contracts/Mafacoin.sol#116-119) should emit an event for:
- lotteryFee = newFee (contracts/Mafacoin.sol#117)
Emit an event for critical parameter changes.

Additional information: link

MafaCoin.setTeamWallet(address)._newWallet (contracts/Mafacoin.sol#84) lacks a zero-check on :
- teamWallet = _newWallet (contracts/Mafacoin.sol#86)
MafaCoin.setLotteryWallet(address)._newWallet (contracts/Mafacoin.sol#89) lacks a zero-check on :
- lotteryWallet = _newWallet (contracts/Mafacoin.sol#91)
MafaCoin.startLiquidity(address)._dexPair (contracts/Mafacoin.sol#134-137) lacks a zero-check on :
- dexPair = _dexPair (contracts/Mafacoin.sol#140)
TimeLockedWallet.constructor(address,address,uint256)._toWallet (contracts/TimeLockedWallet.sol#16) lacks a zero-check on :
- toWallet = _toWallet (contracts/TimeLockedWallet.sol#21)
TimeLockedWallet.constructor(address,address,uint256)._mafacoin (contracts/TimeLockedWallet.sol#17) lacks a zero-check on :
- mafacoin = _mafacoin (contracts/TimeLockedWallet.sol#22)
Check that the address is not zero.

Additional information: link

Reentrancy in MafaCoin._swapAndLiquify(uint256) (contracts/Mafacoin.sol#145-158):
External calls:
- _swapTokensForBNB(half) (contracts/Mafacoin.sol#151)
- dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#167-173)
- _addLiquidity(otherHalf,newAmount) (contracts/Mafacoin.sol#155)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
External calls sending eth:
- _addLiquidity(otherHalf,newAmount) (contracts/Mafacoin.sol#155)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
State variables written after the call(s):
- _addLiquidity(otherHalf,newAmount) (contracts/Mafacoin.sol#155)
- _allowances[owner][spender] = amount (@openzeppelin/contracts/token/ERC20/ERC20.sol#312)
Reentrancy in MafaCoin.startLiquidity(address) (contracts/Mafacoin.sol#131-143):
External calls:
- _dexPair = IUniswapV2Factory(_dexRouter.factory()).createPair(address(this),_dexRouter.WETH()) (contracts/Mafacoin.sol#134-137)
State variables written after the call(s):
- _setAutomatedMarketMakerPair(_dexPair,true) (contracts/Mafacoin.sol#142)
- automatedMarketMakerPairs[pair] = value (contracts/Mafacoin.sol#70)
- dexPair = _dexPair (contracts/Mafacoin.sol#140)
- dexRouter = _dexRouter (contracts/Mafacoin.sol#139)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in MafaCoin._swapAndLiquify(uint256) (contracts/Mafacoin.sol#145-158):
External calls:
- _swapTokensForBNB(half) (contracts/Mafacoin.sol#151)
- dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#167-173)
- _addLiquidity(otherHalf,newAmount) (contracts/Mafacoin.sol#155)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
External calls sending eth:
- _addLiquidity(otherHalf,newAmount) (contracts/Mafacoin.sol#155)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
Event emitted after the call(s):
- Approval(owner,spender,amount) (@openzeppelin/contracts/token/ERC20/ERC20.sol#313)
- _addLiquidity(otherHalf,newAmount) (contracts/Mafacoin.sol#155)
- SwapAndLiquify(half,newAmount,otherHalf) (contracts/Mafacoin.sol#157)
Reentrancy in MafaCoin._transfer(address,address,uint256) (contracts/Mafacoin.sol#189-263):
External calls:
- _swapAndLiquify(tokensToLiquidity) (contracts/Mafacoin.sol#249)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
- dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#167-173)
External calls sending eth:
- _swapAndLiquify(tokensToLiquidity) (contracts/Mafacoin.sol#249)
- dexRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (contracts/Mafacoin.sol#179-186)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (@openzeppelin/contracts/token/ERC20/ERC20.sol#237)
- super._transfer(from,to,taxedAmount) (contracts/Mafacoin.sol#258)
Reentrancy in MafaCoin.startLiquidity(address) (contracts/Mafacoin.sol#131-143):
External calls:
- _dexPair = IUniswapV2Factory(_dexRouter.factory()).createPair(address(this),_dexRouter.WETH()) (contracts/Mafacoin.sol#134-137)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (contracts/Mafacoin.sol#72)
- _setAutomatedMarketMakerPair(_dexPair,true) (contracts/Mafacoin.sol#142)
Reentrancy in TimeLockedWallet.withdraw() (contracts/TimeLockedWallet.sol#35-41):
External calls:
- token.transfer(toWallet,tokenBalance) (contracts/TimeLockedWallet.sol#39)
Event emitted after the call(s):
- Withdrew(mafacoin,msg.sender,tokenBalance) (contracts/TimeLockedWallet.sol#40)
Apply the check-effects-interactions pattern.

Additional information: link

TimeLockedWallet.withdraw() (contracts/TimeLockedWallet.sol#35-41) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp >= unlockDate,Cannot unlock tokens yet!) (contracts/TimeLockedWallet.sol#36)
Avoid relying on block.timestamp.

Additional information: link

Different versions of Solidity is used:
- Version used: ['>=0.5.0', '>=0.6.2', '^0.8.0', '^0.8.9']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/security/Pausable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/math/SafeMath.sol#3)
- >=0.5.0 (@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol#1)
- >=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#1)
- >=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol#1)
- ^0.8.9 (contracts/Mafacoin.sol#3)
- ^0.8.9 (contracts/TimeLockedWallet.sol#3)
Use one Solidity version.

Additional information: link

Pragma version^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/security/Pausable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/math/SafeMath.sol#3) allows old versions
Pragma version>=0.5.0 (@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol#1) allows old versions
Pragma version>=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#1) allows old versions
Pragma version>=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol#1) allows old versions
Pragma version^0.8.9 (contracts/Mafacoin.sol#3) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
Pragma version^0.8.9 (contracts/TimeLockedWallet.sol#3) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.9 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#10) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#11)
Prevent variables from having similar names.

Additional information: link

MafaCoin.slitherConstructorVariables() (contracts/Mafacoin.sol#11-273) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (contracts/Mafacoin.sol#20)
MafaCoin.slitherConstructorVariables() (contracts/Mafacoin.sol#11-273) uses literals with too many digits:
- tSupply = 1000000000 * (10 ** 18) (contracts/Mafacoin.sol#34)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#53-55)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#61-64)
name() should be declared external:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#61-63)
symbol() should be declared external:
- ERC20.symbol() (@openzeppelin/contracts/token/ERC20/ERC20.sol#69-71)
decimals() should be declared external:
- ERC20.decimals() (@openzeppelin/contracts/token/ERC20/ERC20.sol#86-88)
totalSupply() should be declared external:
- ERC20.totalSupply() (@openzeppelin/contracts/token/ERC20/ERC20.sol#93-95)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#112-115)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (@openzeppelin/contracts/token/ERC20/ERC20.sol#120-122)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#131-134)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#149-163)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#177-180)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#196-204)
setAutomatedMarketMakerPair(address,bool) should be declared external:
- MafaCoin.setAutomatedMarketMakerPair(address,bool) (contracts/Mafacoin.sol#57-64)
withdraw() should be declared external:
- TimeLockedWallet.withdraw() (contracts/TimeLockedWallet.sol#35-41)
info() should be declared external:
- TimeLockedWallet.info() (contracts/TimeLockedWallet.sol#43-57)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.


Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Contract has 1% buy tax and 21% sell tax.
Taxes are high (over 10%) but contract ownership is renounced.


Token is deployed only at one blockchain


Last post in Twitter was more than 30 days ago


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find whitepaper link on the website


Unable to find Twitter link on the website


Unable to find token on CoinHunt

Additional information: link


Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link


Young tokens have high risks of price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of price dump / death


Token has relatively low CoinGecko rank

Price for MAFA

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