Malicious PDF — malware analysis report

Static analysis result for SHA-256 941c2233d526da2e…

MALICIOUS

PDF

34.7 KB Created: 2021-06-26 10:49:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: a0d66bf992d9bf0cfc345b55bb328651 SHA-1: d55dad2038708c430b9123c8740582474c19d1d4 SHA-256: 941c2233d526da2e9e273e7a826176c3c55c464b89c891a963c981c9f6392b1f
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/robux-hack-artmoney-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-was-hacked_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-dragon-ball-rage-in-roblox_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/tiktok-views-free_GM835599320.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/pubg-uc-and-bp-hack_GM1330123889.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/100-free-spins-coin-master_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_off00002f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F28 23304 bytes
SHA-256: 9bb86b4dc1a0ab10c71615c5c98e1d70580f03cf14684850e2d6ec764f137d73
font_01_sfnt_off000061e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E2 19264 bytes
SHA-256: ef8703837e91fd584778a7991809365ef0a4d3d1248f674f3df1d8d8b105ea3a

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