MAL-2026-5403

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/t-invest-mcp-server/MAL-2026-5403.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5403
Published
2026-06-09T16:04:28Z
Modified
2026-06-09T17:16:28Z
Summary
Malicious code in t-invest-mcp-server (npm)
Details

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

Source: amazon-inspector (46c186ac158f68845fc995a94d15d44c2b65a521d2619d2850232e58f4a61419)

Package is a dependency-confusion squat: package.json sets version 9999.99.99 (the canonical max-version trick used to win resolution against any internal/private package of the same name), the description self-identifies as a 404 placeholder, and index.js does module.exports = require('t-invest-mcp-server') (a recursive self-reference that provides no functionality). The package exists solely to fire its postinstall hook. postinstall.js collects package name/version, Node version, OS, CI flag, GITHUB_REPOSITORY, GITHUB_REPOSITORY_OWNER, GITHUB_WORKFLOW, and a timestamp, then POSTs them as JSON to https://ddactic-lab.online/sc/beacon at npm install time. A DNS-lookup fallback encodes the same data into a subdomain of b.ddactic-lab.online to exfiltrate through HTTP-blocking egress proxies. This is dependency-confusion reconnaissance: it fingerprints victim organizations and repositories whose builds mistakenly resolve the private name to the public registry, providing the attacker with a target list for follow-on attacks.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-004947",
            "import_time": "2026-06-09T16:59:43.860429236Z",
            "modified_time": "2026-06-09T16:04:28Z",
            "sha256": "46c186ac158f68845fc995a94d15d44c2b65a521d2619d2850232e58f4a61419",
            "source": "amazon-inspector",
            "versions": [
                "9999.99.99"
            ]
        },
        {
            "id": "IN-MAL-2026-004948",
            "import_time": "2026-06-09T16:59:43.911996588Z",
            "modified_time": "2026-06-09T16:04:28Z",
            "sha256": "6425f1819430833151f1a0e34dff1c77cccd743adc5f254e65c32ce24f023e27",
            "source": "amazon-inspector",
            "versions": [
                "9999.99.99"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / t-invest-mcp-server

Package

Name
t-invest-mcp-server
View open source insights on deps.dev
Purl
pkg:npm/t-invest-mcp-server

Affected ranges

Affected versions

9999.*
9999.99.99

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "domains": [
        "ddactic-lab.online",
        "t-invest-mcp-server.none.5384aca8.b.ddactic-lab.online",
        "t-invest-mcp-server.none.5384aca8.b.ddactic-lab.online.ec2.internal"
    ],
    "evidence_files": [
        {
            "path": "postinstall.js",
            "sha256": "e5c7efaa25bd6fc20c40fe6e39a40957043022e78b5ec6d9ad2b9e49a3ef75c8",
            "tlsh": "e241a755829891340fe122c9b852c8165d7bd49633e799f0774d15226fc92bc03b2fdf"
        },
        {
            "path": "package.json",
            "sha256": "5af0f16e21bd47aba1fb24536ed9c7fce091311b3b991d8f5cf4a2ee2bdfbdfd",
            "tlsh": "acf05510897296373fdc36e48c6b318673360d87c1487c0833e70219878e4a780be1a9"
        }
    ],
    "package_integrity": [
        {
            "filename": "t-invest-mcp-server-9999.99.99.tgz",
            "hashes": {
                "sha1": "8735dcb6800da5317d1c099f1ac414d7886164b3",
                "sha512_sri": "sha512-pHJPWAPgxLjN+NT/RxrxaI2FbmVD4NGqluBxgpg/Koip1xFwOCatif895/KcHYbO266ib/+S6xpazYExNOK+mw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/t-invest-mcp-server/MAL-2026-5403.json"