MAL-2026-12414

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pfp-forms-sme-loan/MAL-2026-12414.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12414
Aliases
  • GHSA-p37j-6hr3-m2q3
Published
2026-08-05T12:49:00Z
Modified
2026-08-20T17:30:12Z
Summary
Malicious code in pfp-forms-sme-loan (npm)
Details

The package executes a hidden loader when it is imported. The loader downloads and runs a platform-specific native payload from attacker-controlled Cloudflare Workers hosts, or reconstructs the payload from DNS TXT records under well1.site if HTTPS delivery fails. Systems that imported this package should be considered compromised; rotate accessible secrets and investigate temporary-file execution and DNS activity to the listed infrastructure.

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

Source: amazon-inspector (895bf0e3e06e148eff01868554fe9bfe615a4c611d07afa331acfcf23d094530)

On require of the package, index.js loads bridge.js, which fetches a platform-specific binary from hardcoded Cloudflare Workers subdomains whose hostnames are reassembled at runtime via Array.join() to defeat static analysis (e.g. ["oob-worker.cf100-416.workers.de","v"].join("") and ["tin.dl.","well1.s","it","e"].join("")), with a DNS TXT record fallback that reassembles the payload from covert-channel responses. The fetched bytes are written to a temp path under a disguised name (dotnet_diag.exe /.cache_), chmodded 0o755, and executed detached via spawn("/bin/sh", ["-c", fp + " &"], {detached:true}).unref() on Unix or spawn("cmd",...) on Windows. A companion module lib/telemetry.js (not currently wired into the require graph) contains a fuller variant of the same fetch/decode/spawn logic behind a Sentry-style "analytics SDK" cover story, using string concatenation to hide dangerous APIs (require("child_" + "process"), fs["chmod" + "Sync"]). Requiring or installing the package results in execution of attacker-controlled bytes on the installer's host.

Source: ghsa-malware (c1969a01e59493b2cf8424c931804e22aab7a4c57b8db734d86fbb7d1fe8bd59)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "iocs": {
        "domains": [
            "oob-worker.cf100-416.workers.dev",
            "oob-worker.cf101-adf.workers.dev",
            "oob-worker.cf99-9b3.workers.dev",
            "tin.dl.well1.site",
            "tina.dl.well1.site",
            "ldr.dl.well1.site",
            "win.dl.well1.site"
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-014772",
            "import_time": "2026-08-05T13:08:45.259995437Z",
            "modified_time": "2026-08-05T12:49:00Z",
            "sha256": "895bf0e3e06e148eff01868554fe9bfe615a4c611d07afa331acfcf23d094530",
            "source": "amazon-inspector",
            "versions": [
                "20.2.1"
            ]
        },
        {
            "id": "GHSA-p37j-6hr3-m2q3",
            "import_time": "2026-08-20T17:25:01.631696984Z",
            "modified_time": "2026-08-20T16:37:50Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "c1969a01e59493b2cf8424c931804e22aab7a4c57b8db734d86fbb7d1fe8bd59",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / pfp-forms-sme-loan

Package

Name
pfp-forms-sme-loan
View open source insights on deps.dev
Purl
pkg:npm/pfp-forms-sme-loan

Affected ranges

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

Affected versions

20.*
20.2.1

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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "_bridge.js",
            "sha256": "a7b851e62c96239dadd30e8162f4993f6571bde95d1137604d0b5be3ae419ecc",
            "tlsh": "1da1ba961566701d87b0ebe487275419f65bf653378082d4fbac55d40fb602883b1efc"
        }
    ],
    "package_integrity": [
        {
            "filename": "pfp-forms-sme-loan-20.2.1.tgz",
            "hashes": {
                "sha1": "3f90ce17e49db24412a54ef709f67a6ce62d15dd",
                "sha512_sri": "sha512-Wy40Mk2frPUKgUX1ngJaBFsJ6kBQf55bZmqT/LvJ85C8AYE+NMON6tih+0HuvUJglumfo3S/bB1mY+xCCfXwhg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pfp-forms-sme-loan/MAL-2026-12414.json"