MAL-2026-13654

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-payments-allowed-tariffs-filter/MAL-2026-13654.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13654
Published
2026-08-08T00:44:39Z
Modified
2026-08-08T01:04:50.252574782Z
Summary
Malicious code in sme-rko-finance-front-payments-allowed-tariffs-filter (npm)
Details

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

Source: amazon-inspector (6d957fec8c08e1dcadbcd6e4b6933a1c1482356e79adbfe1f6ceb6d64a68855f)

On require() of the package, bootstrap.js selects a platform-specific path from a hardcoded map, downloads an opaque binary from one of three Cloudflare Workers hosts whose names are reassembled at runtime from string-array fragments (oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev), with DNS TXT-record fallback to sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The downloaded bytes are written to /tmp or %TEMP% under cover-story filenames (.cache<hex>, dotnetdiag<hex>.exe), chmod'd to 0755, and spawned detached via /bin/sh -c or cmd.exe /c start. lib/telemetry.js — reached via index.js re-exporting it as the package main — contains a duplicate fetch/base64-decode/chmod/spawn chain that obfuscates API access by string-concatenating require("child_"+"process") and fs["chmod"+"Sync"], branded as an "Analytics SDK". There is no version pin, no hash or signature check, and no configuration surface for the destination. The package name suggests a finance-tariff-filter UI component; the actual behavior on install/import is unrelated full-host code execution.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-017147",
            "import_time": "2026-08-08T00:53:06.865845466Z",
            "versions": [
                "35.8.1"
            ],
            "modified_time": "2026-08-08T00:44:39Z",
            "sha256": "6d957fec8c08e1dcadbcd6e4b6933a1c1482356e79adbfe1f6ceb6d64a68855f"
        }
    ]
}
References
Credits

Affected packages

npm / sme-rko-finance-front-payments-allowed-tariffs-filter

Package

Name
sme-rko-finance-front-payments-allowed-tariffs-filter
View open source insights on deps.dev
Purl
pkg:npm/sme-rko-finance-front-payments-allowed-tariffs-filter

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-payments-allowed-tariffs-filter/MAL-2026-13654.json"
indicators 
{
    "evidence_files": [
        {
            "tlsh": "7fa1935a16fe701806a2e0d4851f581ab19bf99332c5d9d4fb4c66849faa234c3b39fc",
            "sha256": "d49eefe6e7afe85683f48d8e6635eec8ebed5b75340f2b865dad8da35df0eb03",
            "path": "_bootstrap.js"
        },
        {
            "tlsh": "eb73304966fb10214263b0685fbb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9",
            "sha256": "bafc52724dd8935b8fdd358ad681cac817ae17f787c7bfd32762d30b944557ec",
            "path": "lib/telemetry.js"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha1": "c99508c83bad9cbf04e22b78bb1cedadb909fde2",
                "sha512_sri": "sha512-TTLkHxA96qIUU/gKxl55kTzhGqVToejFlEzmFf8fEOUacD0/CzHJ7M05AWn+Tex4oxGwEdaCAv/TN1sQ+b+eMA=="
            },
            "filename": "sme-rko-finance-front-payments-allowed-tariffs-filter-35.8.1.tgz"
        }
    ]
}