MAL-2026-12674

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ded-ps-events-ded-ps-events-core/MAL-2026-12674.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12674
Published
2026-08-05T13:56:10Z
Modified
2026-08-05T14:36:20.003974433Z
Summary
Malicious code in ded-ps-events-ded-ps-events-core (npm)
Details

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

Source: amazon-inspector (38b1237ac35f64b35ae902019d79b84aeb8eacafc07339fcbca0de866dc6b797)

index.js unconditionally requires./setup.js on load. setup.js assembles hostnames at runtime via Array.join("") to hide them from static scanners, resolving to four Cloudflare Workers endpoints (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. It selects a platform-specific path (/pkg/package, /pkg/package-arm64, /pkg/loadermac, /pkg/package.exe), downloads the binary over HTTPS, writes it to /var/tmp or the Windows temp directory under a disguised name (dotnetdiag<hex>.exe or.cache<hex>), chmods 0o755, and spawns it detached via /bin/sh -c or cmd with.unref(). No hash or signature verification is performed, the endpoints are unrelated to the package's stated purpose (an event-bus framework), and a cooldown flag is written for persistence. Importing this package auto-executes attacker-controlled native code on the installer's machine.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "38b1237ac35f64b35ae902019d79b84aeb8eacafc07339fcbca0de866dc6b797",
            "id": "IN-MAL-2026-015099",
            "modified_time": "2026-08-05T13:56:10Z",
            "import_time": "2026-08-05T14:20:01.922234825Z",
            "source": "amazon-inspector",
            "versions": [
                "35.4.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / ded-ps-events-ded-ps-events-core

Package

Name
ded-ps-events-ded-ps-events-core
View open source insights on deps.dev
Purl
pkg:npm/ded-ps-events-ded-ps-events-core

Affected ranges

Affected versions

35.*
35.4.2

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "6ec47bc728b4fb3799a83bb36b5b80228a8c2e30158c68391dd6e81b4e6b89c7",
            "path": "setup.js",
            "tlsh": "29a1a59a06a6701c4bb09be5c6175415f66bf663328092d4fb5ca8982f7712483b2efc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-Q48uMPiI6iYxjhbKx7kNfVPNNKSZepOpbCKOPs5DPF/zCW3L4+SftYUI+Oz9SeeXRzCR6VRs5TLd8FkmZe2jWA==",
                "sha1": "74b8dfc5941c86ab24092662da434e957b18e12d"
            },
            "filename": "ded-ps-events-ded-ps-events-core-35.4.2.tgz"
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ded-ps-events-ded-ps-events-core/MAL-2026-12674.json"