Malicious PDF — malware analysis report

Static analysis result for SHA-256 7823af460bf4b296…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 00:46:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 59e43484675e18fc5721723ec5c73971 SHA-1: d3e692ce57dd1be54b91d461653be993e43fc7be SHA-256: 7823af460bf4b2968410980471ce3ff7ec5e14adc31b9e8adf0c34ee38350663
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.tw/app/479516143/minecraft-pe-hack-client-game-hack In PDF document text
    • https://library.fdk.ac.id/repository/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/google-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/abd-roblox_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/hacks-for-roblox-the-purge_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/cheat-sa-roblox-rs_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-no-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-giveaway-stream_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/como-tener-mas-dinero-en-adopt-me-roblox-con-hacks_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-hack-roblox-2021-december_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-cheat-engine-cheat-table_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_off0000311f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311F 21720 bytes
SHA-256: ef196dff4665a348d687b1d111b738770d4b7aa255be7dd26f258ec8bf2f6fc3
font_01_sfnt_off000060dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DC 18252 bytes
SHA-256: 122aa68ffc89b9c803021f6a0620f6a9c346e7f6f316835da50b547eae956915

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