MAL-2026-12364

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-atom-bnpl-store-button/MAL-2026-12364.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12364
Aliases
  • GHSA-j5r7-jm3x-rgch
Published
2026-08-05T12:23:43Z
Modified
2026-08-20T01:15:11Z
Summary
Malicious code in dolyame-boxy-atom-bnpl-store-button (npm)
Details

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

Source: amazon-inspector (b82cb3b1e0ca7de56472ae3d263144d8131faf53d64761943decb8937fd5bc6a)

On require, index.js loads loader.js, which downloads a platform-specific binary from Cloudflare Workers hosts whose names are reassembled at runtime from split-string arrays (e.g. oob-worker.cf1XX-*.workers.dev), with a DNS-TXT chunked fallback resolving under *.dl.well1.site. The binary is written to /var/tmp/.cache on Unix or %TEMP%\dotnet_diag_.exe on Windows, chmodded 0755, and detached-spawned via /bin/sh -c or cmd /c start /b (_loader.js line 121-127). Hostname strings are split across array literals joined at runtime, and comments frame the behavior as 'telemetry' with DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK opt-outs as cover. A separate lib/telemetry.js (~81KB) is not referenced from the entry points but ships the same drop-and-execute primitives (HttpTransport, ServiceDiscovery, cp.spawn('/bin/sh',[ '-c', filePath+' &']), chmodSync 0755, base64 chunk buffering) as a redundant loader. The package name mimics a Russian BNPL merchant integration but its only observable effect on require is fetching and executing an unverified remote binary.

Source: ghsa-malware (c7aa44e7965142f25de681ff61cc98b465ddc98f0f621e25f80ab164264bffd0)

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": [
        {
            "id": "IN-MAL-2026-014640",
            "import_time": "2026-08-05T13:08:32.854661033Z",
            "modified_time": "2026-08-05T12:23:43Z",
            "sha256": "b82cb3b1e0ca7de56472ae3d263144d8131faf53d64761943decb8937fd5bc6a",
            "source": "amazon-inspector",
            "versions": [
                "20.5.3"
            ]
        },
        {
            "id": "GHSA-j5r7-jm3x-rgch",
            "import_time": "2026-08-20T01:06:54.071972121Z",
            "modified_time": "2026-08-19T14:57:49Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "c7aa44e7965142f25de681ff61cc98b465ddc98f0f621e25f80ab164264bffd0",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-boxy-atom-bnpl-store-button

Package

Name
dolyame-boxy-atom-bnpl-store-button
View open source insights on deps.dev
Purl
pkg:npm/dolyame-boxy-atom-bnpl-store-button

Affected ranges

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

Affected versions

20.*
20.5.3

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"
    }
]
indicators
{
    "evidence_files": [
        {
            "path": "_loader.js",
            "sha256": "6bbe737d7bdac95c1eeace096390626f27fddfa6cbd1747f0e86b6458965d7c5",
            "tlsh": "cba1a6991666702d47b09be4c61b4815f65af6a33380c1d4f7aca9980fb3224c3b1efc"
        },
        {
            "path": "lib/telemetry.js",
            "sha256": "c113a67b020be3d1e6d16967936d69ed475765c2d383d2d3257754c125c689e7",
            "tlsh": "5f835056566a142186b2b368df234107ff3685272642429dbafc82dc1fbd72092a5ffc"
        }
    ],
    "package_integrity": [
        {
            "filename": "dolyame-boxy-atom-bnpl-store-button-20.5.3.tgz",
            "hashes": {
                "sha1": "254c52b851ce381ca664789f751eab0173038cf7",
                "sha512_sri": "sha512-AFtlRbzP8Z8e0/9KPVqAn/VGQryH0P6S1l+zqoUQslwwZnxyL3JsYrasyMmGRzpMRKbUhwLblnbLk2PDdWXmWQ=="
            }
        }
    ]
}
source
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-atom-bnpl-store-button/MAL-2026-12364.json"