Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3f1029372f82eb…

MALICIOUS

PDF

34.2 KB Created: 2021-06-18 04:12:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 2480b3ae7ecb7174a9b5479b9c9e8bf4 SHA-1: 1ebb448927509b99a20087928c79d9509f3e0f6d SHA-256: 0d3f1029372f82eba52255b8236f1e0abcefd7cc2713172a1824904dfee9b0aa
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.co/app/431946152/free-robuxs-by-bananaman329-game-hack In PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/este-este-unico-hack-que-te-da-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-armanda_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-gift-cards-codes-by-inspect_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/outfit-code-free-garcon-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-big-head-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-spamming-hack-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hacker-bubble-gum-simulator-de-roblox-fr_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-can-you-hack-roblox-tattletail_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/is-tiktok-free-to-download_GM835599320.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-mods-in-minecraft_GM479516143.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_off00002d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8C 22168 bytes
SHA-256: c2f3be6561468391db4350d1108b6f7562532b58a86fe6885642288b1bdf4c04
font_01_sfnt_off00005eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBA 19616 bytes
SHA-256: 160852f5c90941de766ecb26d2a0ee5c78f115366d065cb728eb9d2b35b92aa0

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