Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3207be4f19fa004…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 01:40:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bfe586959cdad1507760df8f9a414c28 SHA-1: 793d880c1a805b632c336551fe366935e1a0f136 SHA-256: d3207be4f19fa004757f4b6d855d9f73ef20c0ad01d9daab31312c917212a5cb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure. The document body and heuristics indicate a lure for game hacks and generators, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://netcdn.co/app/479516143/minecraft-free-online-game-hack In PDF document text
    • http://ff-klaffenbach.de/images/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/google-moon-active_GM406889139.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/how-to-hack-blodfiest-roblox_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/get-robux-free-generator_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/roblox-free-draw_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/comment-hack-sur-roblox-struid_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/roblox-noob-skin-free_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/free-robux-promo-codes-2021-july_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/roblox-building-simulator-hack_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3218 22916 bytes
SHA-256: 8585bed4d1f62f263bc946fb693862809aa2ae51bb5174d496599d937bba17e9
font_01_sfnt_off0000653f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653F 17928 bytes
SHA-256: aabc457c6fa2ff1a57cb7517c3773770131e5bb15a40066da2bb934e749c82de

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