Malicious PDF — malware analysis report

Static analysis result for SHA-256 af265192ebb62a2d…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 18:08:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 94b5f8bc7751cf1e2ef4fd434ebedaa8 SHA-1: ff6546c9e817251b0ded2ab8a6949d90a78a46f9 SHA-256: af265192ebb62a2d36a7096447373e9b47365787097f0a121a668b88352770f8
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-ps4-game-hack In PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-roblox-account-genirtor_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/tags-de-hacks-de-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/twitter-free-gift-card-codes-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-elemental-battlegrounds-gems-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-no-scams-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-get-free-bc-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-studio-free-online_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/code-de-cheat-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/mythical-chaos-robux-hack-v3-0_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-how-to-get-free-clothes-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/egg-farm-sim-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/cheat-code-for-camera-recorder-in-slender-reborn-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/hacker-vs-owner-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/hpyerinjector-roblox-hack-injector_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_off00003176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3176 22220 bytes
SHA-256: d63d6e7f7160930b79eb08d8fb2ace5bb0afa7e3fb266567511955d3ea11ec43
font_01_sfnt_off000062b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B9 18380 bytes
SHA-256: 0d760cff5007a49e50dd6d9a817509808964517a77fc66864bf171130f1b0882

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