MAL-2026-4690

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/test-weavedb-sdk/MAL-2026-4690.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4690
Published
2026-05-26T01:01:08Z
Modified
2026-06-04T23:16:45.762284253Z
Summary
Malicious code in test-weavedb-sdk (npm)
Details

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

Source: amazon-inspector (e3bf1d859670570df6b5400c4ae762c8de880ada809bb4c371f32339744b8f9d)

Package name impersonates the legitimate weavedb-sdk; lib/index.js is a near-verbatim copy of that SDK's Arweave/Warp/EthCrypto class so the package functions as a drop-in substitute. package.json declares "preinstall": "./dist/runtime.node", directly executing a 976KB opaque ELF on every npm install. The.node extension is deceptive — legitimate Node native addons are loaded via require()/dlopen, not spawned as standalone executables. Strings recovered from the binary include HTTP/1.1, POST, DELETE, https://, USERPROFILE, LIBBPF_0.0 (eBPF), PTRACE, Ed25519, and RSA_PKCS1_ — capabilities (HTTP egress, kernel-level eBPF, anti-debug ptrace, home-directory enumeration, cryptographic operations) consistent with an info-stealer / C2 implant and unrelated to the package's advertised purpose. The binary ships without source, build system, or any documentation, and runs unconditionally with the installer's privileges at install time.

Source: google-open-source-security (146faaf0d97c6a533a969bc3f3f117811f9317dc865ed4ab37f1679842ddeaae)

This package was compromised as part of the IronWorm campaign. This campaign executes a malicious binary payload during installation via a preinstall hook. The payload is a Rust-built infostealer that targets developer environments, scanning for and harvesting credentials related to cloud providers, object storage, databases, source-control, package registries, and AI developer tools. It also targets cryptocurrency wallets, specifically injecting a malicious JavaScript hook into the Exodus desktop wallet to capture passwords and recovery phrases. Furthermore, the malware exhibits worm-like behavior by stealing GitHub and NPM credentials to push malicious updates to the victim's repositories and publish trojanized packages, and it uses an eBPF-based kernel rootkit to hide its processes and network connections on Linux systems.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-05-26T01:01:08Z",
            "versions": [
                "1.1.1"
            ],
            "sha256": "e3bf1d859670570df6b5400c4ae762c8de880ada809bb4c371f32339744b8f9d",
            "id": "IN-MAL-2026-004829",
            "source": "amazon-inspector",
            "import_time": "2026-05-26T05:53:21.891510223Z"
        },
        {
            "modified_time": "2026-06-04T22:28:51.769005667Z",
            "versions": [
                "1.1.1"
            ],
            "sha256": "146faaf0d97c6a533a969bc3f3f117811f9317dc865ed4ab37f1679842ddeaae",
            "source": "google-open-source-security",
            "import_time": "2026-06-04T22:42:01.227855Z"
        }
    ]
}
References
Credits

Affected packages

npm / test-weavedb-sdk

Package

Name
test-weavedb-sdk
View open source insights on deps.dev
Purl
pkg:npm/test-weavedb-sdk

Affected ranges

Affected versions

1.*
1.1.1

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "b892830c2bd36b2eb85405aa7a2f242267885f6add576f120ab46cb8504480ab",
            "tlsh": "5d1127b0cea6cdd3aad462e520b8528322b1da834848f84d7396138d4f4e56f717a95e",
            "path": "package.json"
        },
        {
            "sha256": "36abd242ddaa27f0160c539377a0e92cf781c1695137850acc87e3892b436d36",
            "tlsh": "0c2533ab0025062b904d957a58963bd279c17c81afcc3662664dae742fb59c3cf63fc3",
            "path": "dist/runtime.node"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-xeP7YiklbQHFyOyEC1GroFNzUORbHhJXuRprYyMBYoCObSZVwonRCSrlLTo7nKUoagA94VsUZ0NaATB9Ga2e0g==",
                "sha1": "f6990792451a6153e343161b96aeb190433535c9"
            },
            "filename": "test-weavedb-sdk-1.1.1.tgz"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/test-weavedb-sdk/MAL-2026-4690.json"