MAL-2026-13649

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-tax/MAL-2026-13649.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13649
Published
2026-08-08T00:47:27Z
Modified
2026-08-08T01:04:47.561144421Z
Summary
Malicious code in sme-rko-finance-front-operations-tax (npm)
Details

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

Source: amazon-inspector (ede42a446ab3685943424af5a5411fb93bf5961c83ccf6ce02b35b8d835c60aa)

On require, index.js loads platform.js and lib/telemetry.js, which download a platform-specific binary from obfuscated Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, cf103-070, cf102-baf) with a DNS TXT-record fallback to sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /tmp or Windows Temp under disguised names (e.g.,.cache<hex>, dotnetdiag<hex>.exe), chmod'd to 0755, and spawned detached via /bin/sh -c or cmd.exe /c start /b. Hostnames and sensitive API names (child_process, chmodSync) are reassembled at runtime from split string arrays to defeat static analysis. The package's stated purpose (finance/tax operations frontend) has no legitimate need to fetch and execute an opaque native binary from non-publisher infrastructure.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017166",
            "import_time": "2026-08-08T00:53:08.144365188Z",
            "sha256": "ede42a446ab3685943424af5a5411fb93bf5961c83ccf6ce02b35b8d835c60aa",
            "modified_time": "2026-08-08T00:47:27Z",
            "versions": [
                "35.8.1"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / sme-rko-finance-front-operations-tax

Package

Name
sme-rko-finance-front-operations-tax
View open source insights on deps.dev
Purl
pkg:npm/sme-rko-finance-front-operations-tax

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-P7UJHM7IHMU/v5LgLqNfyl6nLRPEimc6oMiaTK539JHBZyv/EyVwpe0utjvVSlOslnANdejs5Abbj83xC/xmcA==",
                "sha1": "dedde8deb6bc52732edc7fad22c89a4d4dd434d1"
            },
            "filename": "sme-rko-finance-front-operations-tax-35.8.1.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_platform.js",
            "sha256": "307674aad732cc70bc45e5f93c4845259265b97d5abc258ec2934378a714afa8",
            "tlsh": "eca1b45916fa30180693e5d4851f981a719efa8332c4d898fb8c66948fe652883b39fc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-tax/MAL-2026-13649.json"