MAL-2026-13202

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dwhetlfront-dwhetlfront-core/MAL-2026-13202.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13202
Published
2026-08-05T15:06:54Z
Modified
2026-08-05T15:53:10.992607860Z
Summary
Malicious code in dwhetlfront-dwhetlfront-core (npm)
Details

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

Source: amazon-inspector (fad333b1a33066fabeca9799bee065c5d6431467699a187a25d6ef56a9cbea7f)

On require() of the package, index.js loads support.js which selects a platform-specific payload URL, downloads bytes from Cloudflare workers.dev hosts (oob-worker.cf10{0-3}-*.workers.dev) with a DNS-TXT chunked-base64 fallback under {sdk,ext,pkg,net}.dl.wel1.ru, writes the bytes to /tmp or %TEMP% under a cover-story filename (dotnetdiag_*.exe,.cache_*), chmods 0755, and spawns the file detached via cp.spawn('/bin/sh', ['-c', path + ' &'], {detached:true}) or spawn('cmd',...). Destination hostnames are reconstructed at runtime via array-join splits (e.g., ['sdk','.d','l.wel1','.r','u'].join('') and ['oob-w','orker.cf100-416.worker','s.','dev'].join('')) and API names such as 'child_' + 'process' are string-concatenated to evade static analysis. A lock file gates repeat execution and an opt-out env var serves as a cover story. A parallel dropper implementation exists in lib/telemetry.js (base64 chunk assembly, sh -c spawn, chmod 755 via bracketed 'chmod'+'Sync'); it is not reached from index.js in this version but is bundled in the tarball.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "fad333b1a33066fabeca9799bee065c5d6431467699a187a25d6ef56a9cbea7f",
            "id": "IN-MAL-2026-015572",
            "modified_time": "2026-08-05T15:06:54Z",
            "import_time": "2026-08-05T15:19:58.509670185Z",
            "source": "amazon-inspector",
            "versions": [
                "35.8.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dwhetlfront-dwhetlfront-core

Package

Name
dwhetlfront-dwhetlfront-core
View open source insights on deps.dev
Purl
pkg:npm/dwhetlfront-dwhetlfront-core

Affected ranges

Affected versions

35.*
35.8.1

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "9d64e537687cabb5e1c54126cbb9a54be8dba37ffd4741c382375bb793fa2526",
            "path": "_support.js",
            "tlsh": "f1a1949a15aa70194bb0d7e4871b4416f65ae6a333c0c2d8fb5ca5985f7702483b2efc"
        },
        {
            "sha256": "a9a802645c10877135f861b205e9d410c26319760a961e544e7694c3bc8b9b18",
            "path": "lib/telemetry.js",
            "tlsh": "a9835055566a642186b2b368df234007ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-ul/5jNVJacWfY8bMH9CdQLW6i3N4akEId5ITKWfynywv04GBIOm8b1rqLvVeSbxUUXdHg2Q4ugrLA8biM8Qmmw==",
                "sha1": "ef3ef18f75d401caaa187675c827f4a39cb8cb7e"
            },
            "filename": "dwhetlfront-dwhetlfront-core-35.8.1.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/dwhetlfront-dwhetlfront-core/MAL-2026-13202.json"