Malicious PDF — malware analysis report

Static analysis result for SHA-256 425989ab099eef1f…

MALICIOUS

PDF

42.0 KB Created: 2021-05-15 01:20:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 21571c132034c9cdd6a306c3ef8db9f1 SHA-1: 9c6abfb52a8e89cf9c300c1bf993dda3af683b2b SHA-256: 425989ab099eef1f374cbcc58f246b2c9d4e18eb9a9d37ca8dffb7e1560c4a69
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/easy-robux-today-game-hack In PDF document text
    • http://gamixpaliwa.pl/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/real-roblox_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/coin-master-attack-madness-hack_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
stream_003_off0000496e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x496E 24380 bytes
SHA-256: 06faaf1a7ece64334c66f3386b3e7aef2882cb51fdfaac8f3e286f1f2118fec8
font_01_sfnt_off0000812a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x812A 18432 bytes
SHA-256: 1883fa622459c5988e0660fe23245856aca8d5f3a454deaddb8061927a15f0be

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