MAL-2026-12225

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/time-utils-helper/MAL-2026-12225.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12225
Published
2026-08-05T09:18:14Z
Modified
2026-08-05T10:06:32.885277178Z
Summary
Malicious code in time-utils-helper (npm)
Details

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

Source: amazon-inspector (93cbd818e3b29b2b7c9da6f48b3d82baae1af9bd0fa637a2848749bdfea86084)

The package advertises itself as a time-formatting utility (index.js exports formatDate/capitalize/truncate) but ships a postinstall.js lifecycle script that runs on npm install and performs unrelated cloud credential harvesting. postinstall.js uses child_process.exec to shell out to curl against multi-cloud instance metadata services (AWS 169.254.169.254, Aliyun 100.100.100.200, Tencent metadata.tencentyun.com, GCP metadata.google.internal, Azure), extracts AWS IAM security credentials for the instance role into /tmp/.iam-creds, and transmits hostname, user, and the IAM credential material as HTTP GET query-string parameters to the hardcoded Burp Collaborator subdomain pzs5w7ntzhsnepwk564lyfdci3oucl0a.oastify.com. The mismatch between the declared trivial utility purpose and the install-time cloud-metadata scraping identifies the package as a decoy delivery vehicle for credential theft.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-014629",
            "import_time": "2026-08-05T09:28:32.256716735Z",
            "sha256": "93cbd818e3b29b2b7c9da6f48b3d82baae1af9bd0fa637a2848749bdfea86084",
            "versions": [
                "1.0.0"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T09:18:14Z"
        }
    ]
}
References
Credits

Affected packages

npm / time-utils-helper

Package

Name
time-utils-helper
View open source insights on deps.dev
Purl
pkg:npm/time-utils-helper

Affected ranges

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "postinstall.js",
            "tlsh": "195112fcb93578333f1e8a94f3ad6a0a8593dc9f4bf4eb0054b61d280c0cd413665a66",
            "sha256": "cd9315d4631bfde5bfe82042b45105c9f42839f41b7b39261e4358957a5f9f3a"
        },
        {
            "path": "package.json",
            "tlsh": "afd02b248a1145333ad09ae55a574845bb654e2b03047c1d53e7100c43cfbf284fe31e",
            "sha256": "de1b57b46cb7c80a618bc22c8cc864ff477cd7a125fc9eff9d40c7a2eda1727d"
        }
    ],
    "package_integrity": [
        {
            "filename": "time-utils-helper-1.0.0.tgz",
            "hashes": {
                "sha1": "f3ecb62dc9e05b4f3f2a85da4718eb0d90e7abab",
                "sha512_sri": "sha512-KtgvvxJiEmHLTr8ImC0l1gy3OpKgcESfppW+05PQhprh6ZbzFrmBa/tOrD7gVOi+Pb9kvAiR2yKLxse+bqJISg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/time-utils-helper/MAL-2026-12225.json"