MAL-2026-12873

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-atom-bnpl-email-form/MAL-2026-12873.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12873
Aliases
  • GHSA-2gqh-cw7h-hv48
Published
2026-08-05T14:56:51Z
Modified
2026-08-06T01:20:17.475384686Z
Summary
Malicious code in bnpl-blocks-atom-bnpl-email-form (npm)
Details

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

Source: amazon-inspector (4990414fbbea6c3a7c19539ac76eeee019ae4657756545743b4b54bdece4a135)

Requiring the package's main entry transitively loads _init.js, which selects an OS/architecture-specific endpoint and downloads a binary from one of four hostname-obfuscated Cloudflare Workers mirrors (hostnames reconstructed via string split-join, e.g. oob-worker.cf100-416.workers.dev). If HTTPS mirrors fail, a DNS-TXT covert channel under *.dl.wel1.ru (subdomains sdk, ext, pkg, net) reconstructs the payload from base64 TXT chunks (c.<domain> for chunk count, <i>.<domain> for chunks). The fetched bytes are written to /var/tmp/.cache_<hex> on POSIX or %TEMP%/dotnet_diag_<hex>.exe on Windows, chmod 0755'd, and spawned detached via /bin/sh -c "<path> &" or cmd.exe /c start /b. Cover-story naming (analytics_state, DISABLE_TELEMETRY, dotnet_diag_*.exe) disguises the behavior. A second dropper implementation with the same fetch-write-chmod-spawn chain is bundled as lib/telemetry.js (framed as an 'Analytics SDK'), using string-split obfuscation of require("child_" + "process") and fs["chmod"+"Sync"] to evade scanners. Fires on any require()/import of the package with no consent, no version pinning, and no integrity verification.

Source: ghsa-malware (c3f097f785ed3cc9b771d06c50f9de14d3418c3260d11dc012cdf3921e83a6dc)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T14:56:51Z",
            "source": "amazon-inspector",
            "sha256": "4990414fbbea6c3a7c19539ac76eeee019ae4657756545743b4b54bdece4a135",
            "import_time": "2026-08-05T15:19:55.136859934Z",
            "id": "IN-MAL-2026-015507",
            "versions": [
                "35.3.9"
            ]
        },
        {
            "modified_time": "2026-08-05T20:41:18Z",
            "source": "ghsa-malware",
            "sha256": "c3f097f785ed3cc9b771d06c50f9de14d3418c3260d11dc012cdf3921e83a6dc",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-2gqh-cw7h-hv48",
            "import_time": "2026-08-06T00:58:53.259581335Z"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-atom-bnpl-email-form

Package

Name
bnpl-blocks-atom-bnpl-email-form
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-atom-bnpl-email-form

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

35.*
35.3.9

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-atom-bnpl-email-form/MAL-2026-12873.json"
indicators 
{
    "package_integrity": [
        {
            "filename": "bnpl-blocks-atom-bnpl-email-form-35.3.9.tgz",
            "hashes": {
                "sha512_sri": "sha512-9C3wSxCXY3Tjr1rlBn6D3sX4lBvWG0OXdcbfAJBvF/FxVfs3PpwuEcmzmoqdjt3hzaqDm82UxpSaGO+lGsdKKA==",
                "sha1": "0e9d8e5e05a75815d4ab8efefae807cfb3a72ce6"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "4da1865a16aa710d8b70e7e4c6178415f65bf663338082d4fb9c69985fb312482b2efc",
            "sha256": "61cf7113cbd5cce8b7837952553d8685544d80bfd2865b065a9592fa79ce8e9d",
            "path": "_init.js"
        },
        {
            "tlsh": "f0835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc",
            "sha256": "e557b04642cd496d12c75c3aaec4ac80da884f94e09ea2a3f786deac4185f5c1",
            "path": "lib/telemetry.js"
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]