MAL-2026-6693

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/thirdwb/MAL-2026-6693.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6693
Aliases
  • GHSA-ccmq-q5j8-hvxc
Published
2026-06-30T00:00:00Z
Modified
2026-07-27T10:08:46.494483726Z
Summary
Malicious code in thirdwb (npm)
Details

Malicious npm package published as part of a coordinated DeFi-themed infostealer campaign. thirdwb is a typosquat of the legitimate thirdweb package. It uses a side-loader technique, pulling in log-taker as a transitive dependency; the infostealer runs automatically via that dependency's postinstall hook. The payload harvests cryptocurrency wallet vaults (MetaMask, Phantom, Solflare, OKX, Coinbase, TrustWallet, Backpack, TronLink), browser cookies and credentials, SSH keys, AWS credentials, .npmrc tokens, Docker config, shell history, and password manager databases, exfiltrating all data to the C2 domain log-taker.store.

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (46722968fbda27cc58821cf8eb055f9c299d3984f794bc6c8554183a11f71304)

The package was found to contain malicious code or consuming dependency that contains malicious code

Source: ghsa-malware (7004be2aa6329c3eddda9d9809f0f87e06a14d60ddf9ad3f25b06675c1df6a83)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "46722968fbda27cc58821cf8eb055f9c299d3984f794bc6c8554183a11f71304",
            "modified_time": "2026-07-08T22:49:12Z",
            "versions": [
                "0.0.8"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-008897",
            "import_time": "2026-07-08T22:51:32.947275766Z"
        },
        {
            "sha256": "7004be2aa6329c3eddda9d9809f0f87e06a14d60ddf9ad3f25b06675c1df6a83",
            "modified_time": "2026-07-27T01:17:59Z",
            "id": "GHSA-ccmq-q5j8-hvxc",
            "source": "ghsa-malware",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "import_time": "2026-07-27T09:43:03.789521181Z"
        }
    ]
}
References
Credits

Affected packages

npm / thirdwb

Package

Name
thirdwb
View open source insights on deps.dev
Purl
pkg:npm/thirdwb

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.0.8

Database specific

indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-lk+E829H5jCtiIlXtcdlHR7zpcuKwqvnK2SWQIS2fyez8MLx4kVTLNYRhvaXmguyuI3HO69H/7fp1qF6Ds08ag==",
                "sha1": "aa18cdf56eb18c40e6ede5201a875c3efbffb90a"
            },
            "filename": "thirdwb-0.0.8.tgz"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/thirdwb/MAL-2026-6693.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
iocs 
{
    "domains": [
        "log-taker.store"
    ]
}