MAL-2026-12985

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-container/MAL-2026-12985.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12985
Published
2026-08-05T14:41:09Z
Modified
2026-08-05T15:51:28.809396159Z
Summary
Malicious code in bnpl-blocks-mobile-bnpl-container (npm)
Details

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

Source: amazon-inspector (d34cee08f3d1aef3c44a67fde619cdd51f0653434204b2390064eb0baad9f2c2)

The package's main entry requires./compat on load, which selects a platform-specific payload (Windows.exe, Linux ELF, macOS Mach-O), downloads it over HTTPS from one of three anonymous *.workers.dev hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev) with a DNS-TXT fallback channel that reassembles a base64 payload from numbered subdomains under wel1.ru. The fetched bytes are written to a disguised temp filename (dotnetdiag<hex>.exe /.cache<hex>), chmod 0755, and spawned detached via /bin/sh or cmd. Destination hostnames are reconstructed at runtime from array-joined string fragments to evade static matching. No hash or signature verification is performed. The package presents itself as a trivial platform adapter; the fetch-and-execute behavior is inconsistent with that stated purpose and is hidden behind DISABLE_TELEMETRY env-var opt-outs.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "35.1.8"
            ],
            "id": "IN-MAL-2026-015399",
            "import_time": "2026-08-05T15:19:49.292259448Z",
            "modified_time": "2026-08-05T14:41:09Z",
            "source": "amazon-inspector",
            "sha256": "d34cee08f3d1aef3c44a67fde619cdd51f0653434204b2390064eb0baad9f2c2"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-mobile-bnpl-container

Package

Name
bnpl-blocks-mobile-bnpl-container
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-mobile-bnpl-container

Affected ranges

Affected versions

35.*
35.1.8

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "filename": "bnpl-blocks-mobile-bnpl-container-35.1.8.tgz",
            "hashes": {
                "sha512_sri": "sha512-DKOTv2x1gaOSUlnQBrv+n8hhET7y/O7OANqjl7xQ2jSI8xzT23XTbkYAZLIslz4W4QsiHKYncxOizWVFQAD6lg==",
                "sha1": "40327a79c2a7e762095546d5ee92043268c8c8a4"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "_compat.js",
            "tlsh": "7ea187aa16a670198b70dbe4c7174416f65be6a33380c2c4fb9c69945f7352483b2efc",
            "sha256": "e75f2c3f3959015f2f13b4f6036c59e8981cfaf55d5df324bb699d0ba12f3f97"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-container/MAL-2026-12985.json"