Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d3b6a2cc6ed9c7…

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 17:23:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-27
MD5: c1fc4b3c8f20eb981c5b603b7bf005e1 SHA-1: 9d0ab5dcc1320193999debcb60ce5114e7fcb8ab SHA-256: c5d3b6a2cc6ed9c7f247c3ebb8e68cfddb02eabf3aa340ffde1aeb27554e22e5
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/cheat-roblox-jailbreak-2021-money-free-game-hack In PDF document text
    • https://mountainholidaytreks.com/userfiles/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/tiktok-free-view-iphone-wallpaper_GM835599320.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/how-to-hack-roblox-accounts-with-edit-this-cookie-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/roblox-apocalypse-rising-hack-dll_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/mcpe_GM479516143.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-no-verification-or-survey_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_off00002fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC1 22208 bytes
SHA-256: 91f63079f74dd66821c7411d66f25e3dbde333e421e18fcc317f5ddb464a7989
font_01_sfnt_off0000610f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610F 20156 bytes
SHA-256: c404cb38d75508c787b56e72762a4cf80ff7da1d2e02fa6cb470383fcdda6589

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