Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d085746ec0e4a8…

MALICIOUS

PDF

44.4 KB Created: 2021-05-12 20:34:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-27
MD5: 51a10611bf78c04cf76f5e63c47bc349 SHA-1: 246508c2195b6647fd633909d3d8456a73427b33 SHA-256: c5d085746ec0e4a84d23adc3fb6330b21ec0acb1b654f011bf6820c2585bee96
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/431946152/getrobux-ninja-game-hack In PDF document text
    • http://beagle-cindy.de/images/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • http://beagle-cindy.de/images/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • http://beagle-cindy.de/images/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://beagle-cindy.de/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://beagle-cindy.de/images/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://beagle-cindy.de/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://beagle-cindy.de/images/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://beagle-cindy.de/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://beagle-cindy.de/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://beagle-cindy.de/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://beagle-cindy.de/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://beagle-cindy.de/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4540 24128 bytes
SHA-256: f8682df82e70f9333fa1497b63c61ead6ad979a6c2ec349f0a52320207f7facc
font_01_sfnt_off00007c28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C28 4220 bytes
SHA-256: da7dcae6dc4c208867244f147a8200d8bfecaaddf7721079d9342fccaec5a3b7
font_02_sfnt_off000089f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F1 18492 bytes
SHA-256: d23b7c5832d9f3375e6d59d692932375930e92cba448a5500249390e72a71ae2

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