MAL-2026-12287

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers/MAL-2026-12287.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12287
Aliases
  • GHSA-cj3v-xccc-76vq
Published
2026-08-05T09:14:49Z
Modified
2026-08-26T01:21:15Z
Summary
Malicious code in twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers (npm)
Details

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

Source: amazon-inspector (401d167bfbb3ec350a033f908aef6678495563e92c6b090d0eaab85bd1c2b7ba)

On require(), index.js loads _bridge.js which assembles obfuscated Cloudflare Workers hostnames from split string literals (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev) and downloads a platform-specific opaque binary via https.get. If HTTPS fails, a DNS-TXT covert-channel fallback queries c. for a chunk count then . TXT records under tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, and win.dl.well1.site, base64-decoding the concatenated chunks. The bytes are written to a hidden path in /tmp or %TEMP%, chmodded 0755, and executed detached via spawn("/bin/sh", ["-c", fp+" &"]) or spawn("cmd",...). Cover strings such as "analytics_state" and "dotnet_diag" mask the behavior. The hosts are unrelated to any declared publisher, the fetched content is opaque and unverified, and execution fires automatically when any consumer imports the package.

Source: ghsa-malware (29a15d879bf142dbee845996b4fa6a6a813683a3f4482f4539f03d95c7a39ec0)

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-2026-014606",
            "import_time": "2026-08-05T09:28:29.849145987Z",
            "modified_time": "2026-08-05T09:14:49Z",
            "sha256": "401d167bfbb3ec350a033f908aef6678495563e92c6b090d0eaab85bd1c2b7ba",
            "source": "amazon-inspector",
            "versions": [
                "20.3.8"
            ]
        },
        {
            "id": "GHSA-cj3v-xccc-76vq",
            "import_time": "2026-08-25T17:25:28.252701373Z",
            "modified_time": "2026-08-25T16:31:51Z",
            "sha256": "29a15d879bf142dbee845996b4fa6a6a813683a3f4482f4539f03d95c7a39ec0",
            "source": "ghsa-malware",
            "versions": [
                "20.3.8"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers

Package

Name
twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers
View open source insights on deps.dev
Purl
pkg:npm/twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers

Affected ranges

Affected versions

20.*
20.3.8

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": "_bridge.js",
            "sha256": "8a021c27cc00d1ffcd0ba39bb74257e19f1c3d0ffb3729023b8ea3dc39204b8e",
            "tlsh": "64a1a79a166a30194bb097e48b174416f65bf6533780c2d4fb9c75885fb622483b1efc"
        }
    ],
    "package_integrity": [
        {
            "filename": "twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers-20.3.8.tgz",
            "hashes": {
                "sha1": "3cedeae130df0e7087cce366317ea923f0f6f3f4",
                "sha512_sri": "sha512-PM2Br0dWcNczJ6+u69FWMcgady5pLt/yuxGLKbo8FyAY8LBbrU+hsB2FgOWMdY1elXV56mzK+HU/2NS4oWtTxg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers/MAL-2026-12287.json"