Malicious PDF — malware analysis report

Static analysis result for SHA-256 624c2785452968c5…

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 01:58:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-29
MD5: e3befde1a8723486a44f11aaa80b5abe SHA-1: 3bb89c93e7bd19fbc091bf40e621ba264b3683bd SHA-256: 624c2785452968c5245ae13933709c5f77c181b961cd7a0de079ca149d1707ff
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/btools-hack-pastbin-roblox-game-hack In PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-outfit-in-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/how-to-shut-down-roblox-server-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/infini-speed-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-admin-group-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/youtube-roblox-jailbreak-hack-keycard_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-hack-tool-2021_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-jailbreak-script-hack_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/how-hack-fairytaill-forgoten-legend-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-hacks-no-download-or-survey_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/coin-master-facebook-page_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_off0000308e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308E 23416 bytes
SHA-256: 1eb43afbbb951cbf0a51c66abd3da1d02d5f7e053047e7abbcd7caab2f9dbc3c
font_01_sfnt_off00006526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6526 19032 bytes
SHA-256: 98d3832fbf4fce051c89dee1407a62096cc5df52b1c915d996ec7e094c2059df