MAL-2026-14361

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/stillm4ddpocs-demo-gadget/MAL-2026-14361.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14361
Published
2026-08-22T20:00:30Z
Modified
2026-08-23T03:30:25Z
Summary
Malicious code in stillm4ddpocs-demo-gadget (npm)
Details

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

Source: amazon-inspector (ff42d765d0c2f6af53e4be5a9cf26ef34b3a36accf199acfb7d53af40b8dc2a6)

On npm install, the declared preinstall script runs index.js, which collects the installer's hostname, OS username, home directory, cwd (INIT_CWD of the consuming project), local IPv4 address, egress public IP (fetched from api.ipify.org, icanhazip.com, and ifconfig.me), DNS resolver information, and the parent project's package.json fields (name, author, repository, homepage). The collected data is transmitted to the hardcoded third-party callback host da51rv0hb2uc72tg4gvgdepinjcalbk1.oast.fun via both DNS queries (hex-chunked subdomain lookups) and HTTPS POST to /poc/. The package name and version pattern are consistent with a dependency-confusion lure targeting an internal scope; the beacon fires automatically at install time without any caller opt-in. Although the author metadata self-labels this as an authorized proof-of-concept, the code performs the full exploitation shape (auto-exec on install, installer-identifier collection, egress to an attacker-controlled callback) against anyone who resolves this public name.

Source: ossf-package-analysis (3ade0d327c85a937a9115a25153971f25b66eb6c838a6a82b171e054afc285c6)

The OpenSSF Package Analysis project identified 'stillm4ddpocs-demo-gadget' @ 999.9.10 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-22T20:08:03.077070784Z",
            "modified_time": "2026-08-22T20:00:30Z",
            "sha256": "3ade0d327c85a937a9115a25153971f25b66eb6c838a6a82b171e054afc285c6",
            "source": "ossf-package-analysis",
            "versions": [
                "999.9.10"
            ]
        },
        {
            "id": "IN-MAL-2026-018517",
            "import_time": "2026-08-23T03:25:51.258754719Z",
            "modified_time": "2026-08-23T03:07:00Z",
            "sha256": "576837aeb5e06bbd4b82b34320747a58f779ba095da3f2538fbb718c8535b4d4",
            "source": "amazon-inspector",
            "versions": [
                "999.9.10"
            ]
        },
        {
            "id": "IN-MAL-2026-018563",
            "import_time": "2026-08-23T03:25:55.632709814Z",
            "modified_time": "2026-08-23T03:13:44Z",
            "sha256": "ff42d765d0c2f6af53e4be5a9cf26ef34b3a36accf199acfb7d53af40b8dc2a6",
            "source": "amazon-inspector",
            "versions": [
                "999.9.20"
            ]
        },
        {
            "id": "IN-MAL-2026-018562",
            "import_time": "2026-08-23T03:25:55.540249407Z",
            "modified_time": "2026-08-23T03:13:35Z",
            "sha256": "462be0ba682fee9d255132379cc576693727f1047a35c67ed8e7c0bdc7e64972",
            "source": "amazon-inspector",
            "versions": [
                "999.9.12"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / stillm4ddpocs-demo-gadget

Package

Name
stillm4ddpocs-demo-gadget
View open source insights on deps.dev
Purl
pkg:npm/stillm4ddpocs-demo-gadget

Affected ranges

Affected versions

999.*
999.9.10
999.9.12
999.9.20

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "index.js",
            "sha256": "3726cade89a651eaaebc3770c04b25e6d8e1ee2a74755cfb18f0948f13d69e8b",
            "tlsh": "c0c1a99712fb202012627ea8369b48653763d133338eebd0b58d53245fe727953a27dd"
        }
    ],
    "package_integrity": [
        {
            "filename": "stillm4ddpocs-demo-gadget-999.9.10.tgz",
            "hashes": {
                "sha1": "789c4fc9199a52a1f7b105bd2c65b47522ffe6de",
                "sha512_sri": "sha512-ixu/g5aiRQ2Ok+FEM6w8x5KgdbeXJyvuWCXqk2jXZYn19B+9TtSEgGnftVRFsR/hdBWPVV3zHHA3XvZMMOHOrg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/stillm4ddpocs-demo-gadget/MAL-2026-14361.json"