MAL-2026-5760

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/npm-sandbox-research-c5d6/MAL-2026-5760.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5760
Aliases
  • GHSA-54f7-37vp-p38f
Published
2026-06-14T07:30:46Z
Modified
2026-06-18T06:01:48Z
Summary
Malicious code in npm-sandbox-research-c5d6 (npm)
Details

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

Source: amazon-inspector (e7dd3f64f94b15f73c62c5733a5910802ff22adc514e0eb08e153817fcd4158b)

The package declares a postinstall hook ("postinstall": "node run.js") that executes automatically on npm install. The shipped beacon scripts (beacon11.js, beacon_linux.js) load child_process, os, and http, read host identifiers via os.hostname() and os.platform(), and issue outbound HTTP GET/POST requests carrying that data. This is the install-time host-fingerprinting and exfiltration shape: lifecycle execution + system-info collection + outbound network in a single chain, with no legitimate library functionality justifying the behavior.

Source: ghsa-malware (40bc58054b1c5c90eeff59bc7cd8b13eeda67ce6b0b7c5c5bc40f3ffb2728311)

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-2026-006464",
            "import_time": "2026-06-14T07:43:28.135499775Z",
            "modified_time": "2026-06-14T07:30:46Z",
            "sha256": "e7dd3f64f94b15f73c62c5733a5910802ff22adc514e0eb08e153817fcd4158b",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "id": "IN-MAL-2026-006466",
            "import_time": "2026-06-14T07:43:28.280386212Z",
            "modified_time": "2026-06-14T07:30:46Z",
            "sha256": "f94e3174e59659bc3525db8886120231fe3f85edfce419c48b81f1a6f7f2c998",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "id": "GHSA-54f7-37vp-p38f",
            "import_time": "2026-06-18T05:54:18.941159351Z",
            "modified_time": "2026-06-18T03:27:53Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "40bc58054b1c5c90eeff59bc7cd8b13eeda67ce6b0b7c5c5bc40f3ffb2728311",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / npm-sandbox-research-c5d6

Package

Name
npm-sandbox-research-c5d6
View open source insights on deps.dev
Purl
pkg:npm/npm-sandbox-research-c5d6

Affected ranges

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

Affected versions

1.*
1.0.0

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": "beacon11.js",
            "sha256": "f4a9ea1da339d73e682bd22b37a57ea2a1141d0953d4a461f7f25bacf237de24",
            "tlsh": "28e10821da656e647603e5a8df47a8482416f21f3930faa0b3dd548c2fdc11ec5b62fe"
        },
        {
            "path": "beacon_linux.js",
            "sha256": "60a0fbee8014300d0dd230765cbea7b61e9660a1584ad6a265de71927ff04c68",
            "tlsh": "5db1b7d6a57b41282bd3b89c679f84061823f217b512d8d0b6dc06248fc7924a1a2ded"
        },
        {
            "path": "package.json",
            "sha256": "7353aab298cf717d6e7bfc5d4f4921de08d5a462ce98742188efbb2da65f309a",
            "tlsh": "3001fe44dd301c7329d42e910e538989fa348f0f9040aeae427b4538a0eee7934bb2bc"
        }
    ],
    "ips": [
        "173.255.233.239",
        "104.16.4.34",
        "10.1.0.2"
    ],
    "package_integrity": [
        {
            "filename": "npm-sandbox-research-c5d6-1.0.0.tgz",
            "hashes": {
                "sha1": "b115c08d21ed96b0a221aee843a3816b2bd70702",
                "sha512_sri": "sha512-Sn5gfQbYB9suuXfXqP//cKO0dBlsuXcHDY8sUhgD/T6L8pEPNLI2gIFhmKwBtG1nj76uz2OTUepVFqAm295BKQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/npm-sandbox-research-c5d6/MAL-2026-5760.json"