How much was lost in the Cashera hack?

The Cashera hack resulted in $90K in losses on May 08, 2022.

What attack technique was used in the Cashera exploit?

The Cashera exploit utilized Rugpull. Understanding this attack vector is critical for smart contract auditors and developers building secure DeFi protocols.

How can developers prevent similar smart contract attacks?

Preventing smart contract hacks requires a combination of secure coding practices, thorough security audits, and understanding common attack vectors like reentrancy, oracle manipulation, and access control flaws. Smart Contract Hacking (SCH) provides hands-on training to help developers and auditors identify and prevent vulnerabilities before deployment.

Cashera Hack

TOTAL LOST $90K

Low May 08, 2022 Rugpull

Affected Chain 2022 Incident surface

Recovered - No recovery reported

All-Time Rank #1561 By amount stolen

Auditors 1 Prior security audit

Incident Overview

Quick Summary

Cashera was rug pulled by token deployer for the total amount of nearly $USD 90,000.

Details of the Exploit

Cashera is BEP20 standard token. The Rug pull occurred after the token deployer minted 23,000,000 $CSR tokens and swapped them. It caused the token price drop by more than 70%.

Incident happened due to centralization and privileged issues of the token contract.

Block Data Reference

Address of scammer: https://bscscan.com/address/0xbaa0c352…801344

Affected contract:

https://bscscan.com/address/0x7ee05842…cf70cc

Mint transactions:

https://bscscan.com/tx/0xe7e568a8…8c1867

https://bscscan.com/tx/0x5dbc2050…a38560

0x81d3ec77438b4e99aa99ba25b1dbc3fea317fe3b0x81d3ec77438b4e99aa99ba25b1dbc3fea317fe3b

Incident Report

Protocol / Project Cashera

Date of Incident May 08, 2022

Attack Technique Rugpull

Classification Token

Primary Source View Post-Mortem

Protocol Information

Protocol Type Bridge

Affected Token CSR

Official Website cashmere.exchange/

Protocol Twitter/X @cashmerelabs

Team Anonymous

Source Code Unverified

Market Context at Time of Hack

Token Categories

Solana Ecosystem Pump Fun Ecosystem

Protocol Links

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 Deep understanding of rugpull and Solidity and EVM internals

Capital Required Seed capital to cover gas and initial position setup

On-Chain Access Ability to interact with smart contracts and deploy a custom exploit contract

Protocol Analysis Identification of the exploitable vulnerability in Cashera's contract logic - root cause: token

Execution Speed Precise transaction ordering and timing to exploit the vulnerability within a single atomic block

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? Hard to catch — private key / OpSec failures are outside smart contract audit scope

Audited by Audit Report 1 — still lost $90K. Prior audits don't guarantee safety, especially after post-audit code changes.

If you're auditing a protocol with similar architecture to Cashera, these are the critical security checks that could have prevented this incident (May 2022).

Verify all logic paths related to Rugpull are guarded by proper access controls and input validation
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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Security Audit History

Audit Report 1 Report

Sources & References

01
Source 1 https://archive.is/m15rz

Threat Assessment

Severity Level

LOW

Attack Vector Rugpull
Root Cause Token
Year 2022

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