Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f3bf03830f4422…

MALICIOUS

PDF

32.6 KB Created: 2021-06-30 14:22:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-13
MD5: bcc0bf3cd88bf419fea9ddee9ab12c70 SHA-1: 87afb8b4e95edb4461ed8b0dbac79ed85b3705fd SHA-256: f2f3bf03830f44222cc3aac2c0b4501a2d300469b3f25418b18b29cc57452af4
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/479516143/minecraft-life-hacks-game-hack In PDF document text
    • http://library.acehresearch.org/repository/free-scripter-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-anime-fighting-simulator-free-vip-server_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-hack-unercorn6-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/robux-fre-codes_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-hack-roblox-account-script_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/hack-para-conseguir-dientes-gratis-en-sharkbite-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/check-cashed-v5-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/ipad-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-download-100-free_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_off00002e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2F 21708 bytes
SHA-256: 07ba31a36ad7727b196761825236dc5c39ba2af841c5db6864417301c6d8d60e
font_01_sfnt_off00005db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB6 18024 bytes
SHA-256: 3a120d64b896f67b09dec491f1c88395cd1b98a1e2a7d14c7c33e3cd7fd92860