Malicious PDF — malware analysis report

Static analysis result for SHA-256 191049019890fe77…

MALICIOUS

PDF

32.8 KB Created: 2021-06-26 19:48:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 2485dddac920a02769dfbe53d9083548 SHA-1: 9487c82ab3002e83ffec91b171051871fb5cc983 SHA-256: 191049019890fe778230715586928c75db2274ebbc9796bb84716ed100e332d3
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/admin-cheats-roblox-game-hack In PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/como-conseguir-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-hack-dot-top_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/robux-hack-not-patched-2021_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-how-to-kick-players-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/best-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/hacking-apps-for-roblox_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_off00002aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA5 21776 bytes
SHA-256: 950a5a99b6997d7d655daed93889d6dcec5c2bc1f0dfcd14679b656f0e289b43
font_01_sfnt_off00005a92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A92 19312 bytes
SHA-256: a389664d46c7fc197739fcc7843ff19f86640597ce50b0209dadc4b00aee11ba