Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3dd9de5ee56b6a…

MALICIOUS

PDF

33.7 KB Created: 2021-07-02 00:45:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: e304df92d9dd3de1250d46028fa106c5 SHA-1: 6c12a1b7c816617043d00b96210ce36f8ff8fc48 SHA-256: 4e3dd9de5ee56b6a87ee6160c01362c0dda58c26773c2ce5d506ff1105235c66
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-bone-break-cheat-engine-game-hack In PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-points-for-robux-easy-to-get_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/ban-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/robux-hack-for-2021_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-hack-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/hack-to-find-people-ingame-in-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-hack-no-verification-ios_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-roblox-exploits-that-supports-loadstrings_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_off00002e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E45 21936 bytes
SHA-256: c0a2c7b7639435f6959b4b2439930e3a4193c6ae0d00992864c74d4db2a59a9b
font_01_sfnt_off00005ec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC6 19044 bytes
SHA-256: 039c8ea18341d665498ecbec1620cc06686e058002997f1a2ca79f28af4c9a56

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