Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87f027291502f1f…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 18:17:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-17
MD5: a17b1c1cb4fd8b792e6a304fb7aeaced SHA-1: d4e254a0e1747e592b306480e8ffd7c3f418053a SHA-256: f87f027291502f1fd38881904f82f629fa60b4b988506a2c3313cdc0b34bc31e
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/406889139/coin-master-download-hack-game-hack In PDF document text
    • https://adventureglaciertreks.com/userfiles/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-sued_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-coin-master-account_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-robux-robloxbloob_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/google-roblox-games_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/how-to-get-free-stuff-on-roblox-2021_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_off000031ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31AC 21904 bytes
SHA-256: c67c64f5edf06ef2ad88496474f5797330865434147801e7092227484a4697ff
font_01_sfnt_off000061c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C1 18584 bytes
SHA-256: 52f878003ac5ff0606fe7602d47b3f3dcd0eccc950a03fe7821c8b2b3d7df851

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