Malicious PDF — malware analysis report

Static analysis result for SHA-256 784b4b16c6625bc2…

MALICIOUS

PDF

44.9 KB Created: 2021-05-15 07:33:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c236c7a7d8095fd021945c57dd9c112e SHA-1: 45d7b5be6270442b3e2f85e9ee8dd43f9b1661ab SHA-256: 784b4b16c6625bc203fcfe3c07ccdd77b1015e35edd2f70e4db2a50de975ac41
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The document body and embedded URLs strongly suggest a lure to trick users into visiting these sites, likely to download further malware or engage in credential harvesting. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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 https://netcdn.xyz/app/431946152/how-to-hack-someone-on-roblox-game-hack In PDF document text
    • http://fratellimazzoleni.it/images/how-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/robux-free-com_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/how-do-u-get-free-robux-2021_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_off00004954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4954 28816 bytes
SHA-256: ce119690b96f725cd5c9dd52670bd9cdfb466c104d56f4207bdd9f5df89adaf4
font_01_sfnt_off00008c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C19 18608 bytes
SHA-256: eebf4fd0ce8e014a693b7448b6f63c7fd528199174cddc1a90a23252bff1a633

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