Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87c306fcf1a0b32…

MALICIOUS

PDF

35.6 KB Created: 2021-06-27 08:22:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-17
MD5: b3295570bf200579e35d6854b093e55b SHA-1: 39817ec2d81ddaadf7b63bab1580e929fa793ee7 SHA-256: f87c306fcf1a0b32c7b5c21a8300f357ed9bde47e0ee7af55c597641e75b4221
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/hack-roblox-murder-mystery-2-game-hack In PDF document text
    • http://apotema.com.co/ufiles/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-games_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-4all_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-using-a-website_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-free-attack-link_GM406889139.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_off0000308e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308E 23020 bytes
SHA-256: b89e799d83a20bcf25a2f9ab06affcf3303cd422a662eb90be602caf7cc330f9
font_01_sfnt_off00006489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6489 19576 bytes
SHA-256: fddd7a3d375b38a2891890c15dd1729a2b0afa0609204acc98e9d2250b337854

Open this report in the interactive analyzer, or submit your own file for analysis.