MAL-2026-13065

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/boxy-maker-sticky/MAL-2026-13065.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13065
Published
2026-08-05T14:29:02Z
Modified
2026-08-05T15:52:05.258733852Z
Summary
Malicious code in boxy-maker-sticky (npm)
Details

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

Source: amazon-inspector (dc3701b8f91a045a21b2a07ba76082afea03e4aea2c9a87a1c1e40e2de88c3b0)

On require() of boxy-maker-sticky, index.js loads runtime.js which reconstructs C2 hostnames from split string fragments ("oob-worker.cf103-0"+"70.worke"+"rs.dev" and "sdk.dl.we"+"l1.ru"), performs an https.get against those hosts to download a platform-specific binary, writes it to a temp directory under a disguised filename (dotnetdiag<rand>.exe on Windows,.cache<rand> on POSIX), chmods it 0755, and spawns it detached via cmd.exe or /bin/sh -c with.unref(). A DNS-TXT chunked fallback path resolves further payload data through *.dl.wel1.ru. A.analytics_state file is written as a persistence/timestamp marker. The fetched content is unpinned, unverified, and unrelated to any stated package purpose; hostname obfuscation via runtime string joining is deliberate evasion. The behavior fires automatically on module load, giving whoever controls the origin hosts arbitrary code execution on the installer's machine.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T14:29:02Z",
            "id": "IN-MAL-2026-015318",
            "import_time": "2026-08-05T15:19:44.584621187Z",
            "versions": [
                "35.9.7"
            ],
            "source": "amazon-inspector",
            "sha256": "dc3701b8f91a045a21b2a07ba76082afea03e4aea2c9a87a1c1e40e2de88c3b0"
        }
    ]
}
References
Credits

Affected packages

npm / boxy-maker-sticky

Package

Name
boxy-maker-sticky
View open source insights on deps.dev
Purl
pkg:npm/boxy-maker-sticky

Affected ranges

Affected versions

35.*
35.9.7

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "filename": "boxy-maker-sticky-35.9.7.tgz",
            "hashes": {
                "sha512_sri": "sha512-7j8NAfDa3khUiTH39V26I/SINucrUgiRi/Blt273r1sBXQ42QFsPYQ4/Nu3JFJwmYlNwVd2uPRaOSUl6utCJbg==",
                "sha1": "dff58f25e52ffc44068b91ab46d42429d1c98da6"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "_runtime.js",
            "tlsh": "19a1879a16a531088bb0a7e4c7174816f65bf6633380c595fb9ca9d44f7712482b2efc",
            "sha256": "a342afb93b76daab599a3b2c013a6dcf0c4c10564c9afa9bc94aee64976e38c0"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/boxy-maker-sticky/MAL-2026-13065.json"