Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e2665f1884af54…

MALICIOUS

PDF

44.7 KB Created: 2021-06-11 09:25:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: a69066a5f3c64b0b4fb2ebbf9892964d SHA-1: 9331425e68ab7d9ca970d228868870ee2e5b980d SHA-256: d3e2665f1884af543a6a4b0c564a78a56b6d1257292c1727cd56e8937876d8b7
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/hack-para-tener-robux-como-tener-robux-hack-2021-game-hack In PDF document text
    • http://opac.kolejkrim.edu.my/repository/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-spawn-in-models-hack_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-robux-hack-2021-lenovo_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/gfx-maker-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/kitty-ears-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-grab-the-child-hacks_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/pubg-uc-jazz-cash_GM1330123889.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-free-set_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/best-hacked-client_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/robux-money_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-redeem_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
stream_004_off00004f51.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F51 25492 bytes
SHA-256: 016c8088bb6606bf42e4abdc6acde73caa700ca2a7847d58dea6544cbe671317
font_01_sfnt_off000089d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D2 19064 bytes
SHA-256: e9ca2290d32136d828c220562ad103d3c2805c804ff4463a7abd25fa8181e94f