Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ef9be9cced3b47…

MALICIOUS

PDF

36.9 KB Created: 2021-05-25 07:35:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: e0af9d8f5b5da4f6407d95f04b8e1823 SHA-1: 3ad6fb9e1d2935e64cd87f5ce2769e56b3febed8 SHA-256: d3ef9be9cced3b47e9d28df16a8e3a7eafd6981af8994ce5a5dace6087c73d50
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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.xyz/app/479516143/minecraft-free-download-unblocked-game-hack In PDF document text
    • https://emindonesia.com/assets/CKImages/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/coin-master-free-daily-spins_GM406889139.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_002_off000032a0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A0 26512 bytes
SHA-256: 41203d1c2bfb656f437121b32178b1c155cf805ef0fe0bc9d1ac4aead705659f
font_01_sfnt_off00006d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D48 18804 bytes
SHA-256: 351b73efa1cf4358b07b283040b01ec481d6b0b50516ad4f4e94e13994b713ed

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