Malicious PDF — malware analysis report

Static analysis result for SHA-256 425b0be11cd0e90f…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 10:50:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 2695ebdf7b51b1f31205933c08b1b09f SHA-1: 82a2cbf9bc80e3c7e9233ae1ea4e855f72e72c45 SHA-256: 425b0be11cd0e90f197fbebabda2d50286ff0200f4ac2fdbe3cc7236a6c68220
160 Risk Score

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/431946152/roblox-street-racing-unleashed-beta-cheats-game-hack In PDF document text
    • https://www.legclub.org/uploads/files/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/how-to-get-hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/game-save-gui-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/roblox-cheat-engine-phantom-forces_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/free-robux-live_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/level-6-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • https://www.legclub.org/uploads/files/files/www-roblox-hack-com_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_off00002ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECD 22480 bytes
SHA-256: 50b6bbf5148da1671852c21b2d8cf1f9265380375de4e5ca62898765b4063360
font_01_sfnt_off000060f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F5 19048 bytes
SHA-256: fede6ddfc06e7a8dca368b8f23c93cc93e2b4a23b16fa858d855024359d514aa

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