Malicious PDF — malware analysis report

Static analysis result for SHA-256 b416681ca364b2a9…

MALICIOUS

PDF

28.5 KB Created: 2021-05-22 00:42:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b01ae8c73b00ca34f88a9d8e6c19d219 SHA-1: 9c6e5b8daf68684c311d0b3d2f0cb87a76a24ba5 SHA-256: b416681ca364b2a9549a18b1e74c54233893676a3224dcd015c0bf33e60cea7b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The document body and embedded links suggest a phishing attempt to trick users into visiting potentially harmful websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9774

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/free-spins-coin-master-unlimited-game-hack In PDF document text
    • http://truebibleteaching.com/images/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://truebibleteaching.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://truebibleteaching.com/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30EF 24348 bytes
SHA-256: ada6369dacc4e4d8aa3281408fd56eaf8bf435eabd318a69633e6664c7e32dab

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