Malicious PDF — malware analysis report

Static analysis result for SHA-256 941f919d81fa4b2f…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 01:32:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: a15f2758a8d0ec0b0066c59f6985860f SHA-1: 3e717d16e4ca0dc5100cfaac86cf7f77ee797d0e SHA-256: 941f919d81fa4b2fce06d036656b38a3ea4304aa68197394779bdb539f1a0d12
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/how-to-get-free-robux-from-inspecting-2021-game-hack In PDF document text
    • https://pustaka.widyakartika.ac.id/repository/youtube-how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/robloxs-top-model-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/get-free-robux-without-getting-apps_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/good-softwares-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/blonde-girl-hair-free-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-today-pc_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/20-free-spins-coin-master_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
font_00_sfnt_off00002fe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE7 22348 bytes
SHA-256: cea8376689d27b0092e010ad4ecb0766cad42d8eb2ad50e324a252f96b4809df
font_01_sfnt_off000061a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A5 19756 bytes
SHA-256: ff4293a8e86b9dce3a9f57f84ee6bffaa8ee82a2a20e16bc558aeb8a3f6fbf9a

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