Malicious PDF — malware analysis report

Static analysis result for SHA-256 354c90185f71a4fb…

MALICIOUS

PDF

49.0 KB Created: 2021-05-15 00:32:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e6284524a6f7ff99c1d318807d24687c SHA-1: 86f877d943fb99222a00173436945489239c41ed SHA-256: 354c90185f71a4fb6ba3864760384ffb375fd2d06fcaac744ecfc7bf304a6142
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically advertising game hacks and free spins for games like Coin Master. The document body and embedded links strongly suggest a social engineering lure to trick users into visiting potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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/406889139/coin-master-free-spins-link-ios-game-hack In PDF document text
    • http://hocquaux.fr/images/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • http://hocquaux.fr/images/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://hocquaux.fr/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/what-games-give-you-robux_GM431946152.pdfIn PDF document text
    • http://hocquaux.fr/images/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • http://hocquaux.fr/images/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
    • http://hocquaux.fr/images/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://hocquaux.fr/images/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004713.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4713 24128 bytes
SHA-256: 569788eb32c5fe08d3b0604cb4f3d826a0becb0097a8159a333f9af7fbc23fe4
font_01_sfnt_off00007cff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFF 3380 bytes
SHA-256: 1dd933c112880b232546f3aab6a17784a8f412d39fd551cc6eb31c5a04c3ce57
font_02_sfnt_off000088e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E3 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_03_sfnt_off00009d6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D6E 18056 bytes
SHA-256: a4f33549350803e8a819cbfad6b4ff3cdc0b302ceab74af9f2f663eab6bd9ec0

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