MAL-2026-12993

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-image-plus-text/MAL-2026-12993.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12993
Published
2026-08-05T14:39:33Z
Modified
2026-08-05T15:51:32.885168782Z
Summary
Malicious code in bnpl-blocks-mobile-bnpl-image-plus-text (npm)
Details

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

Source: amazon-inspector (1fe5dcff2d2c8210499718411ebd66f6810c42a8439728a3919636548598b494)

On require of the package, compat.js assembles remote endpoint hostnames from split string arrays (e.g. oob-worker.cf10x-*.workers.dev) and includes a DNS TXT-record base64 fallback channel over c.<domain> and numbered subdomains of dl.wel1.ru. It downloads a platform-specific binary from those attacker-controlled hosts with no hash or signature verification, writes it to a temp path under a masquerading name (dotnetdiag_*.exe on Windows,.cache_* on Unix), chmods it 0755, and spawns it detached via cmd.exe /c start /b or /bin/sh -c. The dropper runs on module load with a TTL stamp to suppress re-execution. Behaviors observed include platform gating, cover-story naming, string-concatenation obfuscation of the C2 hosts, and a covert DNS TXT-record fallback for endpoint resolution.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "1fe5dcff2d2c8210499718411ebd66f6810c42a8439728a3919636548598b494",
            "id": "IN-MAL-2026-015389",
            "modified_time": "2026-08-05T14:39:33Z",
            "import_time": "2026-08-05T15:19:48.762485079Z",
            "source": "amazon-inspector",
            "versions": [
                "35.3.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-mobile-bnpl-image-plus-text

Package

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

Affected ranges

Affected versions

35.*
35.3.2

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "59c1aa3a990876e33d7da95fc33814266e0f954c8eca1f5f4874c1aacaaede01",
            "path": "_compat.js",
            "tlsh": "9db1965a15b970188bb0d7e087275415f66af663338086d8fb9ca5981f7712483b2dfc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-bdF/dXUa/h9qbIFoogoxqACUfWRZOcz9msfOqdSKYQQqN9uRRxPK/xycqr2LIheN2SaXMSSkrK4Efp7E5G8Ucw==",
                "sha1": "bed29924c9288e3fa36697ae23ce458546d2c897"
            },
            "filename": "bnpl-blocks-mobile-bnpl-image-plus-text-35.3.2.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/bnpl-blocks-mobile-bnpl-image-plus-text/MAL-2026-12993.json"