MAL-2026-13131

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-stories/MAL-2026-13131.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13131
Published
2026-08-05T15:18:07Z
Modified
2026-08-05T15:52:38Z
Summary
Malicious code in dolyame-boxy-stories (npm)
Details

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

Source: amazon-inspector (c0ef68742c490f223f00748b7f5dc82d614231b0d68e430736bbaac9175035e4)

On require, index.js loads bridge.js which selects a platform-specific endpoint and downloads a binary from one of three attacker-controlled hosts whose names are reconstructed at runtime via string.join() to evade static detection (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS TXT-record fallback under sdk.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised filenames (.cache on Unix, dotnet_diag_.exe on Windows), chmod 0755, and spawned detached via /bin/sh -c or cmd /c start. A marker file.analytics_state and opt-out env vars DISABLE_TELEMETRY / ANALYTICS_OPT_OUT provide cover-story naming; the package's declared purpose is unrelated to any telemetry or analytics function, and the default code path executes the remote binary. This is a load-time full-host RCE dropper.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-015644",
            "import_time": "2026-08-05T15:20:01.390051746Z",
            "modified_time": "2026-08-05T15:18:07Z",
            "sha256": "c0ef68742c490f223f00748b7f5dc82d614231b0d68e430736bbaac9175035e4",
            "source": "amazon-inspector",
            "versions": [
                "35.9.7"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-boxy-stories

Package

Name
dolyame-boxy-stories
View open source insights on deps.dev
Purl
pkg:npm/dolyame-boxy-stories

Affected ranges

Affected versions

35.*
35.9.7

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": "_bridge.js",
            "sha256": "ae16991dfae9f40a99c8e8f8ffe1585828a2a1c0543b32a3f197948bf05ede58",
            "tlsh": "45a177a615a970184bb0dbe4c7175416f65bf6633380d294fb9ca5d81fb212482b3efc"
        }
    ],
    "package_integrity": [
        {
            "filename": "dolyame-boxy-stories-35.9.7.tgz",
            "hashes": {
                "sha1": "a3b33b4724e11414302c5404b57f7c6c06799bdc",
                "sha512_sri": "sha512-CYwjQx4U2ajw26T7k0Z+LaSHBAYfkfnKeFRghWAlHq3czmh8iKzHW9zvO7oXUtY4McPS6JMq/9N370QxhT+nVw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-stories/MAL-2026-13131.json"