Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97aa903959fde0b…

MALICIOUS

PDF

41.9 KB Created: 2021-05-13 05:40:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6855409f49baed9a2c556ea5e4857a5c SHA-1: e2f0199dba8cd9e94b8b0c33826f6aba53ed28fa SHA-256: f97aa903959fde0b6e3322a940a56e507ee28e22a927607eed779aa8b5b6773d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as game hack generators. The document body and embedded links suggest a social engineering tactic to lure users to potentially malicious websites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/how-to-hack-coins-in-mcpe-master-game-hack In PDF document text
    • http://www.lycee-langevin-wallon.com/images/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/rbx-hut_GM431946152.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/free-coin-master-account_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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_003_off0000496f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x496F 24732 bytes
SHA-256: 8325b5c290fcbf7405a08bd0a7caa7da7370664acc4001d9b7a8427cc3d61901
font_01_sfnt_off0000822a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x822A 18056 bytes
SHA-256: ea749421c9763e897f0775a2fca8a7e481d8ca205e309ab3fda826117ef8ab8f

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