MAL-2026-12197

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/simple-date-formatter-new-6/MAL-2026-12197.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12197
Published
2026-08-05T08:48:31Z
Modified
2026-08-05T10:06:19.095166903Z
Summary
Malicious code in simple-date-formatter-new-6 (npm)
Details

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

Source: amazon-inspector (fcbd38bc87a61131881784bb9e919a03a4cfa2f69934fd17e3735b34ce75e3f6)

package.json declares a postinstall script that runs a shell pipeline collecting host identifiers (uname, id), routing and ARP tables, TCP-probe results against internal hosts, cloud instance metadata from 169.254.169.254, and PID 1 cmdline, then POSTs the aggregated output over plain HTTP to safjhdvsfwzhieemkdzbgr54r0yjhrmok.oast.fun/escinfo10 (an interact.sh OAST callback host). A sibling postinstall.js enumerates ~/.ssh and POSTs a JSON payload including username, platform, and.pub filenames to the hardcoded IP 124.221.154.135:443/post. Both behaviors fire as install-time side effects and provide the publisher with reconnaissance data and cloud-credential-adjacent metadata from any host that runs npm install on this package.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "fcbd38bc87a61131881784bb9e919a03a4cfa2f69934fd17e3735b34ce75e3f6",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ],
            "import_time": "2026-08-05T09:28:09.664190819Z",
            "modified_time": "2026-08-05T08:48:31Z",
            "id": "IN-MAL-2026-014425"
        }
    ]
}
References
Credits

Affected packages

npm / simple-date-formatter-new-6

Package

Name
simple-date-formatter-new-6
View open source insights on deps.dev
Purl
pkg:npm/simple-date-formatter-new-6

Affected ranges

Affected versions

1.*
1.0.0

Database specific

indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha1": "65a9274029d76c6b01be480e3b919f528060ed15",
                "sha512_sri": "sha512-pm7LmwDmEycuSUTmvHAmHS8EUZCfYWG/JIjGXok5pnOZv2JjZdVDcuDkTnVVWbzGL3Q/u1yWNaxxnKgk7BCBFg=="
            },
            "filename": "simple-date-formatter-new-6-1.0.0.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "package.json",
            "sha256": "61b6fdcbef339c4602dc085da4d1eaa944b05030f5aeff75e0a52be237150327",
            "tlsh": "5c212104f2019cb36e8c675cd94e15a6fb0ee40f2e8a3d08a3879c3ce64c5da557c219"
        },
        {
            "path": "postinstall.js",
            "sha256": "f2be6940c08d36a7f1ce83d5fe16fefd8c14edda5d124e0f6406725beb5020ef",
            "tlsh": "273165d558f9cd3007778685639b91263102fe13650ee940f3c807a51fe9a5449f2dee"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/simple-date-formatter-new-6/MAL-2026-12197.json"