MAL-2026-17435

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/niksinnkatalapp/MAL-2026-17435.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17435
Published
2026-09-30T07:11:22Z
Modified
2026-10-04T23:45:17Z
Summary
Malicious code in niksinnkatalapp (npm)
Details

niksinnkatalapp is a dependency-confusion package: it takes a name that looks like an internal project, uses an inflated version (100.0.0) so it outranks private-registry versions, and runs node setup.js || true as a preinstall script on npm install. setup.js sends the hostname, username, working directory, OS, architecture, Node.js version and configured npm registry, with a per-package tracking token, in an HTTPS POST to https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook. The npm account amel10 published niksinnkatalapp and 9 similar packages within two minutes on 2026-09-30, all with the same setup.js.

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

Source: amazon-inspector (25ce51139798c658f3018f19912e889df1b0ce31025a6236a473d959b12ef0d9)

The package declares a preinstall hook that runs setup.js on npm install. setup.js collects host identifiers (os.hostname(), os.userInfo().username, process.cwd(), platform, arch, node version, and the configured npm registry) and POSTs them as JSON, together with a hardcoded correlation token, to https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook. The advertised purpose is a trivial celsius-to-fahrenheit conversion, which does not require telemetry or network activity. The package name and 100.0.0 version pin are consistent with a dependency-confusion lure intended to win resolution against an internal package name and beacon out from build environments that install it.

Database specific 
{
    "iocs":  {
        "domains":  [
            "s85r5k14qk.execute-api.us-east-1.amazonaws.com"
        ],
        "files":  [
            {
                "digests":  {
                    "sha256":  "13018b47265a09d744aacb91356d8d16b50578a63683930cfced7d17a07a7256"
                },
                "note":  "preinstall: node setup.js || true",
                "paths":  [
                    "package.json"
                ],
                "source":  "PACKAGE_ARCHIVE"
            },
            {
                "digests":  {
                    "sha256":  "d64e24db686969742bde4b94c86541e70d389ca52287cfe1298060d92354d576"
                },
                "note":  "Executed by the preinstall script.",
                "paths":  [
                    "setup.js"
                ],
                "source":  "PACKAGE_ARCHIVE"
            }
        ],
        "urls":  [
            "https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook"
        ]
    },
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-020940",
            "import_time":  "2026-10-04T23:40:44.160156481Z",
            "modified_time":  "2026-10-04T23:23:13Z",
            "sha256":  "25ce51139798c658f3018f19912e889df1b0ce31025a6236a473d959b12ef0d9",
            "source":  "amazon-inspector",
            "versions":  [
                "100.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / niksinnkatalapp

Package

Name
niksinnkatalapp
View open source insights on deps.dev
Purl
pkg:npm/niksinnkatalapp

Affected ranges

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

Affected versions

100.*
100.0.0

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":  "setup.js",
            "sha256":  "d64e24db686969742bde4b94c86541e70d389ca52287cfe1298060d92354d576",
            "tlsh":  "1101fef495e0e5b93abc51c8f2a0b84b92b7e028340775d0c8f981547f89af80d728f2"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "niksinnkatalapp-100.0.0.tgz",
            "hashes":  {
                "sha1":  "cb17274afc8f03ac807aaa0c599b4708a5143690",
                "sha512_sri":  "sha512-dLS/AzGVqBOhoTluiQbZQfUdSyyO58wLrCqDapLumHHs8OPUM4tMpkyDAQlUAIuPYCYJgeegG+wmLZH5fNoXRA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/niksinnkatalapp/MAL-2026-17435.json"