Malicious PDF — malware analysis report

Static analysis result for SHA-256 941926d3362f4f8b…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 09:23:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: e7f63a276cec31f15b0e621835cf2b2f SHA-1: 1bfc8a3d816762d8cd77ec21f34945c2fb17f6f7 SHA-256: 941926d3362f4f8ba14d00fa2b6d7bfbaf1a56cde01dbe2bb40929a6e4929473
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.tw/app/431946152/make-robux-game-hack In PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/what-games-give-you-robux_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/admin-hack-roblox-free_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-free-money-jailbreak_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/getrobux-come_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/pastebin-roblox-vip-free-robux-no-wait_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/hack-roblox-pc-prison-life_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/pastebin-unlimited-free-robux-and-obc-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-do-u-hack-roblox_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_off00002cc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC3 22728 bytes
SHA-256: 38e5d444e182cd331c59406f3d7ba294beeb51204a0e423f5c66371334c0b7a8
font_01_sfnt_off00005f95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F95 18916 bytes
SHA-256: ea53d75d75d9beff3d4f9af2218e51df711d02c8d5b726b14a498621087d2188