MAL-2026-13311

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-fonts/MAL-2026-13311.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13311
Aliases
  • GHSA-rphf-wm4q-p6rj
Published
2026-08-05T15:23:59Z
Modified
2026-08-06T01:20:53.525291791Z
Summary
Malicious code in dolyame-boxy-fonts (npm)
Details

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

Source: amazon-inspector (00cfc61444739291be87199c8b4118dd762690f12041bdadcd6b5792b4a3c9c3)

On require() of dolyame-boxy-fonts, index.js unconditionally loads./loader.js, which reconstructs C2 hostnames from split-string arrays (Cloudflare Workers subdomains oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev) and a DNS-TXT fallback channel under *.dl.wel1.ru (chunk-count via c.<domain>, base64 chunks via N.<domain> retrieved through dns.resolveTxt). loader.js downloads a platform-specific binary, writes it to /tmp or %TEMP% under a hidden/decoy name (.cache<rand> or dotnetdiag<rand>.exe), chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe. The fetched bytes are opaque, unpinned, and not hash-verified, and the destination hosts are anonymous Cloudflare Workers subdomains assembled at runtime to defeat static grep. A sibling module lib/telemetry.js ships in the tarball with the same dropper primitives (require('child' + 'process') string-split, fs['chmod' + 'Sync'], cp.spawn('/bin/sh', ['-c', filePath + ' &'])), providing an alternate execution path. Installing or requiring this package causes attacker-controlled code to execute on the installer's machine.

Source: ghsa-malware (8fc78c53700a2acd4b24e0604a5f8b99e8e425b04b17a32aae2ed79ae8422be9)

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 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "35.4.8"
            ],
            "id": "IN-MAL-2026-015682",
            "import_time": "2026-08-05T16:13:31.737910423Z",
            "modified_time": "2026-08-05T15:23:59Z",
            "source": "amazon-inspector",
            "sha256": "00cfc61444739291be87199c8b4118dd762690f12041bdadcd6b5792b4a3c9c3"
        },
        {
            "modified_time": "2026-08-05T20:40:46Z",
            "id": "GHSA-rphf-wm4q-p6rj",
            "import_time": "2026-08-06T00:58:53.446783852Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "source": "ghsa-malware",
            "sha256": "8fc78c53700a2acd4b24e0604a5f8b99e8e425b04b17a32aae2ed79ae8422be9"
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-boxy-fonts

Package

Name
dolyame-boxy-fonts
View open source insights on deps.dev
Purl
pkg:npm/dolyame-boxy-fonts

Affected ranges

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

Affected versions

35.*
35.4.8

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "filename": "dolyame-boxy-fonts-35.4.8.tgz",
            "hashes": {
                "sha512_sri": "sha512-byiEeRvsFFEmaaOy0IBz0QCZSGPxjPEKnMRACdMIgIJrIzX/nBz2/srAQXHRE7SfQDOBgikgFTMeoKBIC5L4Vw==",
                "sha1": "a2e3f5dffda6737420ff4d10945ae5a73ef1b283"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "_loader.js",
            "tlsh": "e6a1b89a156a70188bb0e7e4c61b881af55bf753378182c8f79c65885f725248372efc",
            "sha256": "efb8db093be48b813047df72a930963899b94fc618d5602d91ef201b0b52ad4d"
        },
        {
            "path": "lib/telemetry.js",
            "tlsh": "0e835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc",
            "sha256": "be105c5ab49e725099ad71dacee9ee1f650850586770467df27034015c0ee01c"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-fonts/MAL-2026-13311.json"