LCASH [LuckyCash] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

LuckyCash.swapBack() (#357-402) sends eth to arbitrary user
Dangerous calls:
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in LuckyCash._transferFrom(address,address,uint256) (#277-308):
External calls:
- swapBack() (#298)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#368-374)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#392-399)
External calls sending eth:
- swapBack() (#298)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#392-399)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#301)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#304)
- amountReceived = takeFee(sender,amount,recipient) (#303)
- _balances[address(this)] = _balances[address(this)].add(contractTokens) (#339)
- _balances[utilityFeeReceiver] = _balances[utilityFeeReceiver].add(utilityTokens) (#340)
Apply the check-effects-interactions pattern.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

LuckyCash.swapBack().tmpSuccess (#385) is written in both
(tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
(tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
LuckyCash.swapBack().tmpSuccess (#385) is written in both
(tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
(tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
LuckyCash.swapBack().tmpSuccess (#385) is written in both
(tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
tmpSuccess = false (#389)
Fix or remove the writes.

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.

LuckyCash.takeFee(address,uint256,address) (#325-348) performs a multiplication on the result of a division:
-feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100) (#334)
-utilityTokens = feeAmount.mul(utilityFee).div(totalFee) (#336)
Consider ordering multiplication before division.

Additional information: link

LuckyCash.manage_WalletLimitExempt(address[],bool).i (#462) is a local variable never initialized
LuckyCash.manage_TxLimitExempt(address[],bool).i (#455) is a local variable never initialized
LuckyCash.manage_blacklist(address[],bool).i (#441) is a local variable never initialized
LuckyCash.manage_FeeExempt(address[],bool).i (#448) is a local variable never initialized
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

LuckyCash.swapBack() (#357-402) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#392-399)
Ensure that all the return values of the function calls are used.

Additional information: link

LuckyCash.setMaxTxPercent_base1000(uint256) (#408-410) should emit an event for:
- _maxTxAmount = (_totalSupply * maxTXPercentage_base1000) / 1000 (#409)
LuckyCash.setMaxTxAbsolute(uint256) (#412-414) should emit an event for:
- _maxTxAmount = amount (#413)
LuckyCash.setMultipliers(uint256,uint256,uint256) (#421-425) should emit an event for:
- sellMultiplier = _sell (#422)
- buyMultiplier = _buy (#423)
- transferMultiplier = _trans (#424)
LuckyCash.setFees(uint256,uint256,uint256,uint256,uint256,uint256) (#480-489) should emit an event for:
- liquidityFee = _liquidityFee (#481)
- devFee = _devFee (#482)
- marketingFee = _marketingFee (#483)
- LotteryFee = _LotteryFee (#484)
- utilityFee = _utilityFee (#485)
- totalFee = _liquidityFee.add(_devFee).add(_marketingFee).add(_LotteryFee).add(_utilityFee) (#486)
- feeDenominator = _feeDenominator (#487)
LuckyCash.setSwapBackSettings(bool,uint256) (#499-502) should emit an event for:
- swapThreshold = _amount (#501)
LuckyCash.setTargetLiquidity(uint256,uint256) (#504-507) should emit an event for:
- targetLiquidity = _target (#505)
- targetLiquidityDenominator = _denominator (#506)
Emit an event for critical parameter changes.

Additional information: link

Auth.transferOwnership(address).adr (#99) lacks a zero-check on :
- owner = adr (#100)
LuckyCash.setFeeReceivers(address,address,address,address,address)._autoLiquidityReceiver (#491) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#492)
LuckyCash.setFeeReceivers(address,address,address,address,address)._marketingFeeReceiver (#491) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#493)
LuckyCash.setFeeReceivers(address,address,address,address,address)._LotteryFeeReceiver (#491) lacks a zero-check on :
- LotteryFeeReceiver = _LotteryFeeReceiver (#494)
LuckyCash.setFeeReceivers(address,address,address,address,address)._utilityFeeReceiver (#491) lacks a zero-check on :
- utilityFeeReceiver = _utilityFeeReceiver (#495)
LuckyCash.setFeeReceivers(address,address,address,address,address)._devFeeReceiver (#491) lacks a zero-check on :
- devFeeReceiver = _devFeeReceiver (#496)
Check that the address is not zero.

Additional information: link

Reentrancy in LuckyCash.constructor() (#218-243):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#220)
State variables written after the call(s):
- LotteryFeeReceiver = 0xd3D2E0eCe59f768baE205d42E5908EbAe9949D3C (#226)
- _allowances[address(this)][address(router)] = type()(uint256).max (#222)
- _balances[msg.sender] = _totalSupply (#241)
- autoLiquidityReceiver = 0x375bC77B4E53980659Ef2D78cEA454b87584fBaE (#224)
- devFeeReceiver = 0x375bC77B4E53980659Ef2D78cEA454b87584fBaE (#227)
- isFeeExempt[msg.sender] = true (#230)
- isTxLimitExempt[msg.sender] = true (#232)
- isTxLimitExempt[DEAD] = true (#233)
- isTxLimitExempt[ZERO] = true (#234)
- isWalletLimitExempt[msg.sender] = true (#236)
- isWalletLimitExempt[address(this)] = true (#237)
- isWalletLimitExempt[DEAD] = true (#238)
- isWalletLimitExempt[utilityFeeReceiver] = true (#239)
- marketingFeeReceiver = 0xD2423F5b4aF9f1a16fd200a53B5fd5192B405Ab4 (#225)
- utilityFeeReceiver = 0x375bC77B4E53980659Ef2D78cEA454b87584fBaE (#228)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in LuckyCash._transferFrom(address,address,uint256) (#277-308):
External calls:
- swapBack() (#298)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#368-374)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#392-399)
External calls sending eth:
- swapBack() (#298)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#392-399)
Event emitted after the call(s):
- Transfer(sender,address(this),contractTokens) (#341)
- amountReceived = takeFee(sender,amount,recipient) (#303)
- Transfer(sender,utilityFeeReceiver,utilityTokens) (#344)
- amountReceived = takeFee(sender,amount,recipient) (#303)
- Transfer(sender,recipient,amountReceived) (#306)
Reentrancy in LuckyCash.constructor() (#218-243):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#220)
Event emitted after the call(s):
- Transfer(address(0),msg.sender,_totalSupply) (#242)
Reentrancy in LuckyCash.swapBack() (#357-402):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#368-374)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#392-399)
External calls sending eth:
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#392-399)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#400)
Apply the check-effects-interactions pattern.

Additional information: link

LuckyCash._maxTxAmount (#173) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 100
LuckyCash._maxWalletToken (#174) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 50
LuckyCash.totalFee (#191) is set pre-construction with a non-constant function or state variable:
- devFee + marketingFee + liquidityFee + LotteryFee + utilityFee
LuckyCash.swapThreshold (#214) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 1000
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version^0.8.9 (#6) 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

Low level call in LuckyCash.swapBack() (#357-402):
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#385)
- (tmpSuccess,None) = address(LotteryFeeReceiver).call{gas: 30000,value: amountBNBLottery}() (#386)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBdevFee}() (#387)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IDEXRouter.WETH() (#114) is not in mixedCase
Function LuckyCash.setMaxWalletPercent_base1000(uint256) (#405-407) is not in mixedCase
Parameter LuckyCash.setMaxWalletPercent_base1000(uint256).maxWallPercent_base1000 (#405) is not in mixedCase
Function LuckyCash.setMaxTxPercent_base1000(uint256) (#408-410) is not in mixedCase
Parameter LuckyCash.setMaxTxPercent_base1000(uint256).maxTXPercentage_base1000 (#408) is not in mixedCase
Parameter LuckyCash.setMultipliers(uint256,uint256,uint256)._buy (#421) is not in mixedCase
Parameter LuckyCash.setMultipliers(uint256,uint256,uint256)._sell (#421) is not in mixedCase
Parameter LuckyCash.setMultipliers(uint256,uint256,uint256)._trans (#421) is not in mixedCase
Parameter LuckyCash.tradingStatus(bool)._status (#427) is not in mixedCase
Function LuckyCash.tradingStatus_antibot(bool) (#431-433) is not in mixedCase
Parameter LuckyCash.tradingStatus_antibot(bool)._status (#431) is not in mixedCase
Function LuckyCash.manage_blacklist_status(bool) (#435-437) is not in mixedCase
Parameter LuckyCash.manage_blacklist_status(bool)._status (#435) is not in mixedCase
Function LuckyCash.manage_blacklist(address[],bool) (#439-444) is not in mixedCase
Function LuckyCash.manage_FeeExempt(address[],bool) (#446-451) is not in mixedCase
Function LuckyCash.manage_TxLimitExempt(address[],bool) (#453-458) is not in mixedCase
Function LuckyCash.manage_WalletLimitExempt(address[],bool) (#460-465) is not in mixedCase
Parameter LuckyCash.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._liquidityFee (#480) is not in mixedCase
Parameter LuckyCash.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._devFee (#480) is not in mixedCase
Parameter LuckyCash.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._marketingFee (#480) is not in mixedCase
Parameter LuckyCash.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._LotteryFee (#480) is not in mixedCase
Parameter LuckyCash.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._utilityFee (#480) is not in mixedCase
Parameter LuckyCash.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._feeDenominator (#480) is not in mixedCase
Parameter LuckyCash.setFeeReceivers(address,address,address,address,address)._autoLiquidityReceiver (#491) is not in mixedCase
Parameter LuckyCash.setFeeReceivers(address,address,address,address,address)._marketingFeeReceiver (#491) is not in mixedCase
Parameter LuckyCash.setFeeReceivers(address,address,address,address,address)._LotteryFeeReceiver (#491) is not in mixedCase
Parameter LuckyCash.setFeeReceivers(address,address,address,address,address)._utilityFeeReceiver (#491) is not in mixedCase
Parameter LuckyCash.setFeeReceivers(address,address,address,address,address)._devFeeReceiver (#491) is not in mixedCase
Parameter LuckyCash.setSwapBackSettings(bool,uint256)._enabled (#499) is not in mixedCase
Parameter LuckyCash.setSwapBackSettings(bool,uint256)._amount (#499) is not in mixedCase
Parameter LuckyCash.setTargetLiquidity(uint256,uint256)._target (#504) is not in mixedCase
Parameter LuckyCash.setTargetLiquidity(uint256,uint256)._denominator (#504) is not in mixedCase
Variable LuckyCash.WBNB (#163) is not in mixedCase
Variable LuckyCash.DEAD (#164) is not in mixedCase
Variable LuckyCash.ZERO (#165) is not in mixedCase
Constant LuckyCash._name (#167) is not in UPPER_CASE_WITH_UNDERSCORES
Constant LuckyCash._symbol (#168) is not in UPPER_CASE_WITH_UNDERSCORES
Constant LuckyCash._decimals (#169) is not in UPPER_CASE_WITH_UNDERSCORES
Variable LuckyCash._totalSupply (#171) is not in mixedCase
Variable LuckyCash._maxTxAmount (#173) is not in mixedCase
Variable LuckyCash._maxWalletToken (#174) is not in mixedCase
Variable LuckyCash._balances (#176) is not in mixedCase
Variable LuckyCash._allowances (#177) is not in mixedCase
Variable LuckyCash.LotteryFee (#188) is not in mixedCase
Variable LuckyCash.LotteryFeeReceiver (#200) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#119) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#120)
Prevent variables from having similar names.

Additional information: link

LuckyCash.slitherConstructorVariables() (#160-542) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#164)
LuckyCash.slitherConstructorVariables() (#160-542) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#165)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

LuckyCash.DEAD (#164) should be constant
LuckyCash.WBNB (#163) should be constant
LuckyCash.ZERO (#165) should be constant
LuckyCash._totalSupply (#171) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

authorize(address) should be declared external:
- Auth.authorize(address) (#83-85)
unauthorize(address) should be declared external:
- Auth.unauthorize(address) (#87-89)
transferOwnership(address) should be declared external:
- Auth.transferOwnership(address) (#99-103)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 9% buy tax and 28% sell tax.
Taxes are suspiciously high (over 10%) and contract ownership is not renounced. Token has a high risk of becoming a honeypot.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

Average 30d PancakeSwap liquidity is low.

Average 30d PancakeSwap volume is low.

Average 30d number of PancakeSwap swaps is low.

Token is deployed only at one blockchain

Token has only one trading pair

BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link

Unable to find token on CoinGecko

Additional information: link

Unable to find token on CoinMarketCap

Additional information: link

Unable to find token/project description on the website or on BscScan, CoinMarketCap

Unable to find token contract audit

Unable to find audit link on the website

Unable to find token on CoinHunt

Additional information: link

Unable to find code repository for the project

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

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

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

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank