MAL-2026-10028

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@wagni_bot/metemask-sdk/MAL-2026-10028.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-10028

Published

2026-07-09T00:00:00Z

Modified

2026-08-05T06:35:55.062014676Z

Summary

Malicious code in @wagni_bot/metemask-sdk (npm)

Details

The npm package @wagni_bot/metemask-sdk is a supply-chain credential stealer disguised as a MetaMask (misspelled 'metemask') SDK. It is one member of a coordinated campaign of 25 crypto/web3 typosquat packages published under the single npm scope @wagni_bot on 2026-07-09.

Each package declares a postinstall lifecycle hook (postinstall: node postinstall.js) that executes automatically on npm install, before the package is ever imported. The script fingerprints the host and user (os.hostname(), os.userInfo(), os.platform()), walks the user's home directory (readdirSync/readFileSync) and reads high-value secrets — SSH private keys (~/.ssh/id_rsa), cryptocurrency wallet files, and .env files (API keys, tokens, seed phrases). It then JSON-encodes the collected data and exfiltrates it to a hardcoded Telegram bot via the Telegram Bot API sendMessage endpoint (https://api.telegram.org/bot8804087989:AAHUia-5DCloXsg9M9QhffTsHO5J_6FAxQM/sendMessage). All error paths are swallowed so the install appears normal.

codelake Research proved the packages belong to one campaign deterministically: the payload file is byte-identical across all 25 packages at each published version (version-lockstep), and every package exfiltrates to the same Telegram bot token — a single automated actor. Detected and classified independently from the live npm feed on 2026-07-09; at the time of reporting the packages were still live on npm and none of the 25 were present in OSV or GHSA (a first-catch).

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

Source: amazon-inspector (cb3278c8cf58eb66a4a0b385f9e36f59b1ad9bca93baf2c6de84e40d550d73ba)

@wagni_bot/metemask-sdk is a single-character typosquat of the legitimate metamask-sdk package ("metemask" vs "metamask"). index.js is an empty stub (module.exports = {}); the package has no functional library code. Its sole effect is a postinstall hook (postinstall.js) that runs at npm install time and performs credential theft against the installer:

Recursively walks process.cwd(), os.homedir(), and ~/.ssh, reading files whose names match .env, .cred, .pem, .key, mnemonic, seed, wallet, secret, id_rsa, id_ed25519. This captures SSH private keys, crypto-wallet seed phrases/keystores, and dotenv secrets.
Enumerates process.env and filters keys containing PRIVATE, SECRET, TOKEN, API_KEY, PASSWORD, MNEMONIC, SEED, WALLET, AWS, capturing their values.
Collects host identifiers via os.hostname(), os.userInfo(), platform, and cwd.
POSTs the harvested content (chunked) to https://api.telegram.org/bot<hardcoded-token>/sendMessage targeting attacker chat_id 892359416.

This satisfies the attacker-benefit gate (bulk exfiltration of installer-owned SSH keys, wallet seeds, and credential env vars to an attacker-controlled Telegram channel) and auto-executes on default npm install via the postinstall lifecycle. The typosquat name targets developers intending to install MetaMask's SDK.

Database specific

{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-07-09T15:24:51Z",
            "sha256": "0970ff01982fabbf6fe10079a50e89ec0847d3edad5f643b17dbecd70321ae10",
            "versions": [
                "1.1.5"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-009078",
            "import_time": "2026-07-09T16:20:38.872477506Z"
        },
        {
            "id": "IN-MAL-2026-009039",
            "modified_time": "2026-07-09T15:18:36Z",
            "versions": [
                "1.1.1"
            ],
            "source": "amazon-inspector",
            "import_time": "2026-07-09T16:20:35.228102701Z",
            "sha256": "c734022f34f31176059d3fc16b4750750d6b5f1dbef1662bbd151d29c38d657c"
        },
        {
            "import_time": "2026-07-09T16:20:33.409512406Z",
            "modified_time": "2026-07-09T15:16:12Z",
            "versions": [
                "1.0.0"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-009024",
            "sha256": "cb3278c8cf58eb66a4a0b385f9e36f59b1ad9bca93baf2c6de84e40d550d73ba"
        },
        {
            "source": "amazon-inspector",
            "modified_time": "2026-07-09T15:14:53Z",
            "versions": [
                "1.2.0"
            ],
            "sha256": "f02eb354580eaed07d89cb6015f54f3e97d47891a69f8e420bbd42203e4ea3c3",
            "id": "IN-MAL-2026-009016",
            "import_time": "2026-07-09T16:20:32.881751701Z"
        },
        {
            "id": "IN-MAL-2026-009053",
            "modified_time": "2026-07-09T15:20:49Z",
            "versions": [
                "1.1.4"
            ],
            "source": "amazon-inspector",
            "import_time": "2026-07-09T16:20:36.688386301Z",
            "sha256": "2f1619378d1a86aeccaa082b41b58319d72fae1a8dea02d8f5ba60e1284338c2"
        },
        {
            "sha256": "6772612dd322662e3f6daab985ad1378d380dc8d0e59e10406ebab4de146aa1d",
            "modified_time": "2026-07-09T15:17:39Z",
            "versions": [
                "1.1.3"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-009033",
            "import_time": "2026-07-09T16:20:34.07294792Z"
        },
        {
            "source": "amazon-inspector",
            "modified_time": "2026-07-09T15:23:25Z",
            "versions": [
                "1.1.0"
            ],
            "sha256": "b33bbb63be9b14ef0ee3f0041fc8225e2d272c24a1651ffa1b27a8f4876e1975",
            "id": "IN-MAL-2026-009069",
            "import_time": "2026-07-09T16:20:38.027527392Z"
        },
        {
            "sha256": "7593ac939532972b2db1618d0ff347cf68b286638ffc8dcfd1bde3f5f9855e49",
            "modified_time": "2026-08-05T05:12:40Z",
            "versions": [
                "1.1.2"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-012952",
            "import_time": "2026-08-05T06:00:23.675751458Z"
        }
    ],
    "iocs": {
        "hashes": [
            "sha256:5867a4645ba3bf832a6511e27195ec5073a4ab3142405bf2dab493b8a8a1dbb9"
        ],
        "urls": [
            "https://api.telegram.org/bot8804087989:AAHUia-5DCloXsg9M9QhffTsHO5J_6FAxQM/sendMessage"
        ]
    }
}

References

Credits

- Amazon Inspector - FINDER
- - inspector-research@amazon.com
- codelake Research - FINDER
- - https://research.codelake.dev/advisories/clr-2026-3000-wagni-metemask-sdk

Affected packages

npm / @wagni_bot/metemask-sdk

Package

Name: @wagni_bot/metemask-sdk; View open source insights on deps.dev
Purl: pkg:npm/%40wagni_bot/metemask-sdk

Affected ranges

Affected versions

1.*

1.0.0

1.1.0

1.1.1

1.1.2

1.1.3

1.1.4

1.1.5

1.2.0

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"
    },
    {
        "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"
    },
    {
        "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"
    },
    {
        "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"
    }
]

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@wagni_bot/metemask-sdk/MAL-2026-10028.json"

indicators

{
    "evidence_files": [
        {
            "path": "postinstall.js",
            "sha256": "3d8a59e627a451040c959870dace8fb417d1f9c55c6e2d2190637289212f8b3f",
            "tlsh": "5c8155c4b1fa520958a341eefa5b220210717d573848e4a9fedc9f456f56240af53bfc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha1": "3200bd5a61c869dc3e1d28f4b807f7e91941d93f",
                "sha512_sri": "sha512-zmzp/T7cTFk75etUN4mNQqhIfjmyN1/dKQtmsRAaCPfhMpZtfYWx/8h20k04CO9d1z8KEAI9deylC8WgJL8wEQ=="
            },
            "filename": "metemask-sdk-1.1.5.tgz"
        }
    ]
}