Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcc43cb970954fb…

MALICIOUS

PDF

33.7 KB Created: 2021-07-08 01:02:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: cada25ad9451b91dd93ca38bf62b18ee SHA-1: fefb8745962e3e3d295bc0bafbdffa09556d2803 SHA-256: 1dcc43cb970954fb4730df6ac9d106440743bffc00e20d0bfc2d8217bee70793
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/how-do-you-hack-minecraft-game-hack In PDF document text
    • http://opac.stiesa.ac.id/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-get-free-money-on-roblox-retail-tycoon_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-spin-and-coins-links-2021_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_off00002fc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC5 21744 bytes
SHA-256: a8ab574679df2e9243b81d52882e4fcd368ea45debb4aba2ab2403887754969a
font_01_sfnt_off00005f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F71 18804 bytes
SHA-256: 12a5592d1a5b4d5f1871214198de719998814125497f597bc50e969619909f04