MAL-2026-13653

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-payment-registers-operations-domain/MAL-2026-13653.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13653
Published
2026-08-08T00:44:08Z
Modified
2026-08-08T01:04:49.847593110Z
Summary
Malicious code in sme-rko-finance-front-payment-registers-operations-domain (npm)
Details

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

Source: amazon-inspector (5b21f700cd5e3a5eb33a34fa9e3a9754e73e5794ee1cc57ada01344004a8c921)

index.js unconditionally loads runtime.js on require. runtime.js detects the host OS and architecture, then downloads an opaque platform-matched binary over HTTPS from hardcoded Cloudflare workers.dev subdomains (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev). If HTTPS retrieval fails, it falls back to a DNS-TXT covert channel under *.dl.wel1.ru, requesting a chunk-count TXT record at c.<domain> and then reassembling base64-encoded payload chunks from N.<domain> TXT queries. The reassembled bytes are written to /var/tmp or %TEMP% under a disguised filename (.cache<rand> or dotnetdiag_<rand>.exe mimicking a.NET diagnostic tool), chmodded 0755, and spawned detached via /bin/sh -c or cmd.exe /c start /b. Both the CDN hostnames and the fallback resolver domains are constructed by Array.join of split fragments to evade string scanning. The delivered binary is unpinned, unverified, opaque, and served from anonymous edge-worker infrastructure and a.ru DNS channel unrelated to any legitimate publisher of a finance/payment-registers package.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017144",
            "import_time": "2026-08-08T00:53:06.649560546Z",
            "sha256": "5b21f700cd5e3a5eb33a34fa9e3a9754e73e5794ee1cc57ada01344004a8c921",
            "versions": [
                "35.8.1"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-08T00:44:08Z"
        }
    ]
}
References
Credits

Affected packages

npm / sme-rko-finance-front-payment-registers-operations-domain

Package

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

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "_runtime.js",
            "tlsh": "47a1d85a16fb70180293e5d9852b4416b19bfa9332c5d8d8fb4ca6948f9713483b39fc",
            "sha256": "4ac492ece67037dc6555fd3a0d754467869f1078e0868490f0b2dfabeb7fd290"
        }
    ],
    "package_integrity": [
        {
            "filename": "sme-rko-finance-front-payment-registers-operations-domain-35.8.1.tgz",
            "hashes": {
                "sha1": "4614d6361fbffcbe6dbd60d52917b2bbe8525169",
                "sha512_sri": "sha512-xf0Po3dDJWdZazjQK2S8PjAPkdtRK8BYPGXh7dgfM4c795K8y1wqWLrCRbtSzMkweJfzekj3NZVoBGXOVbDuBQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-payment-registers-operations-domain/MAL-2026-13653.json"