MAL-2026-13641

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-notifications-models/MAL-2026-13641.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13641
Published
2026-08-08T00:44:58Z
Modified
2026-08-08T01:05:03.949677503Z
Summary
Malicious code in sme-rko-finance-front-operations-notifications-models (npm)
Details

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

Source: amazon-inspector (e1d9ca70f719a1aa76a11ce147945ee7acefdb72bcbf955d1c7cd30a5d9f85e8)

On require of the package, index.js side-effect loads polyfill.js and lib/telemetry.js, both of which act as native-binary droppers. Hostnames and privileged API names are assembled via array.join('') to evade static scans (e.g. require("child" + "process"), MIRRORS built from ["oob-worker.cf102-baf.worke","rs.d","ev"].join('')). The code downloads a platform-specific binary via https.get from oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, and oob-worker.cf101-adf.workers.dev, with a DNS TXT fallback under *.dl.wel1.ru that base64-reassembles the payload. The fetched bytes are written to /var/tmp/.cache<rand> or %TEMP%\dotnetdiag<rand>.exe (masquerading as a dotnet diagnostic file), chmod 0755'd, and spawned detached via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}) or cmd.exe /c start /b. lib/telemetry.js contains a parallel dropper path (base64 chunk assembly, chmodSync to 0755, cp.spawn('/bin/sh',...)) so execution occurs even if _polyfill.js is removed. The declared 'core infrastructure utilities / telemetry' purpose does not match downloading and executing opaque native binaries from anonymous Cloudflare Workers subdomains.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017149",
            "import_time": "2026-08-08T00:53:07.008268511Z",
            "sha256": "e1d9ca70f719a1aa76a11ce147945ee7acefdb72bcbf955d1c7cd30a5d9f85e8",
            "modified_time": "2026-08-08T00:44:58Z",
            "versions": [
                "35.8.1"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / sme-rko-finance-front-operations-notifications-models

Package

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

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-CWg/NOr96J6HbPdPvUQXmEmO+KyTAE/6n9AXt5GfFDAOC0fuprj3thEBasH9Q04lluX1a39ze8Nre9N8+qaw/w==",
                "sha1": "b79038ad5dfd3baed1cf85134767ee679a39e806"
            },
            "filename": "sme-rko-finance-front-operations-notifications-models-35.8.1.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_polyfill.js",
            "sha256": "25eb0d1886d308385793a388fa30b80a07e7795d921c52b52c61ab9f197f36eb",
            "tlsh": "32a1b55a16fb70240693e1d8841f9826749efa5337c4d9c4fb4c66948feb52883b39ec"
        },
        {
            "sha256": "7ccdf425091e0b66f982944b53bfcdee9aefd6e23892f0250543115a4bc40a36",
            "path": "lib/telemetry.js",
            "tlsh": "2c733f4966fb10214263b0685fbb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-notifications-models/MAL-2026-13641.json"