Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e16e4939fb53cc…

MALICIOUS

PDF

35.0 KB Created: 2021-06-19 19:50:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-21
MD5: d7e422556601b105f48555ebbc9f4cf4 SHA-1: 987e536c678c9e7fe6f5105680d83b603effc9eb SHA-256: d3e16e4939fb53cc9609114aa5ec007511ad5687028e80a1accd52b278fd5490
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/roblox-tycoon-simulator-cheat-game-hack In PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/offers-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/earnrobux_GM431946152.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/how-to-get-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/robux-converter_GM431946152.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/free-minecraft-com_GM479516143.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/tiktok-free-no-download_GM835599320.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/minecraft-items_GM479516143.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.owlweb.co.uk/uploads/files/files/how-to-hack-roblox-to-get-free-robux_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_off00003174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3174 22108 bytes
SHA-256: a5511b249842acfa32a42f7602dc34b9643d2e97522f7a6294645aa3a63c2fee
font_01_sfnt_off0000629b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629B 19456 bytes
SHA-256: 3779f1bfa02ed89b03450f0c806ae0eb78518aa5efba19941cbe3d45839313b6

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