Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcd5b1fea35be7b…

MALICIOUS

PDF

33.5 KB Created: 2021-07-20 12:42:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 5f25a14302115fe685a8161183cac43f SHA-1: d5f86b8e58eb37c9cd1ae49b94bef99f3fb2978a SHA-256: 1dcd5b1fea35be7bf3b63a3e225b1c1414846c1113e7e1974eaa9e549b18f013
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/free-minecraft-server-hosting-game-hack In PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-free-download_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_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_off00002f18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F18 22592 bytes
SHA-256: 7400306fe17510637409e6eae9a2fb32cb63b4635b64dcd8e2da2dec89e50875
font_01_sfnt_off00006186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6186 18112 bytes
SHA-256: 3722fe831b56fbf324865bd98e985c80b873b4d61fb4aa2a64332cfc2a086223