Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ec0971482121e9…

MALICIOUS

PDF

38.4 KB Created: 2021-07-08 12:31:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: e0b6c55601d20cb8845140f77fd6769b SHA-1: f01fddaed8936eb2b12d7b8ee6d225cb99d8883c SHA-256: d3ec0971482121e927759e0bf5395f17974361ec7fefe449974cab0ac4697dfd
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.tw/app/431946152/roblox-promo-code-to-get-free-robux-game-hack In PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/game-toolbox_GM479516143.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/roblox-hack-tool-apk-download_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/roblox-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/www-roblox-com-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/roblox-mobile-app-free-download_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-roblox-girl-clothes-codes_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/roblox-robux-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-roblox-dominus_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_off00003de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DE0 22452 bytes
SHA-256: 95cfb7369845ac596eaa7995f82978333d76a0c6011da4776f703e0fdb640413
font_01_sfnt_off00007009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7009 19480 bytes
SHA-256: 9c60ac484ed4d96c21d417994060880eaf1182fdd7210cd7b39094265f956726

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