MAL-2026-12630

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/claims-page-maker-types/MAL-2026-12630.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12630
Published
2026-08-05T14:03:08Z
Modified
2026-08-05T14:35:57Z
Summary
Malicious code in claims-page-maker-types (npm)
Details

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

Source: amazon-inspector (b337b617f3692fffb0d54a13924ae322ed7e2976c00a61f16c16877aa8c086e5)

On require() of claims-page-maker-types, index.js loads adapter.js which runs at module load. adapter.js selects a platform-specific asset, fetches an opaque binary over HTTPS from one of four hardcoded Cloudflare workers.dev hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS TXT fallback under wel1.ru (sdk.dl.wel1.ru), writes the payload to a disguised temp path (.cache on Unix, dotnet_diag.exe on Windows), chmods it 0755, and spawns it detached via /bin/sh -c or cmd. Host strings are assembled by Array.join from split fragments to evade plain-text scanners, filenames mimic system diagnostics, and a stamp file (analytics_state) throttles re-execution while comments frame the behavior as 'telemetry'. No pinning, no signature verification, and the destination hosts are not the package's registry or publisher infrastructure.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-015144",
            "import_time": "2026-08-05T14:20:06.608700751Z",
            "modified_time": "2026-08-05T14:03:08Z",
            "sha256": "b337b617f3692fffb0d54a13924ae322ed7e2976c00a61f16c16877aa8c086e5",
            "source": "amazon-inspector",
            "versions": [
                "35.5.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / claims-page-maker-types

Package

Name
claims-page-maker-types
View open source insights on deps.dev
Purl
pkg:npm/claims-page-maker-types

Affected ranges

Affected versions

35.*
35.5.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "_adapter.js",
            "sha256": "2a58813a75a60eb63ad0c48dba572be38499d857548f25c5beb32054727472f9",
            "tlsh": "d5a1879a12a570198bb0ebe4c61b8415f66bf6633780c5d4f79c55884fb312483b2efc"
        }
    ],
    "package_integrity": [
        {
            "filename": "claims-page-maker-types-35.5.1.tgz",
            "hashes": {
                "sha1": "6b645fc36baabf784995ccc259aede2856c5e865",
                "sha512_sri": "sha512-RybrDQYcnPHdMMoDqbP2AKLJFVINq6guNc+YRlrL6wxF6yiXGCgIqunbgy/aF+FXrGYzWPWkuscJ721pldHtcA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/claims-page-maker-types/MAL-2026-12630.json"