Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2d62c9de432315…

MALICIOUS

PDF

43.5 KB Created: 2021-05-14 02:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-21
MD5: e89482774313c0f8acf5c3d47850a8c1 SHA-1: 4dfb0b1b5a4f66564d7ef670c7ac5a76d1c0630e SHA-256: af2d62c9de432315fa196c90c04334ee00cc2dff5d6703e5242b0418330449bd
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/tower-of-hell-roblox-hack-game-hack In PDF document text
    • http://vcelarskepotreby.org/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/coins-master_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/coin-master-link_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://vcelarskepotreby.org/images/coin-master-free-spins-hack-2021_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_off00004983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4983 27264 bytes
SHA-256: 4530b8568ccb2d657bbc5e014da7fac8b63272ed7d7a430e491368eb7cb86929
font_01_sfnt_off00008753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8753 18344 bytes
SHA-256: 03b0a99fcd61db89faa26c1828de523dc9cf9d0c2b9dbfe52dc8b55ccb7305a4