Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b050c06dc9cec0…

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 15:16:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: aaee10146885c58ee9411c5dab7142f2 SHA-1: 8f5a12731c15a8b911228c40ac2330b7d3c9a667 SHA-256: 72b050c06dc9cec0880daa0839362ee3b9989a3fb5ac196cee08d52b8b538646
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/free-robux-android-zephplayz-game-hack In PDF document text
    • http://rollipolli.hu/userfiles/files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/roblox-adidas-free_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-hack-money-in-heists-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-cheat-in-roblox-mega-fun-obby_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-robux-without-waiting_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-robux-no-human-verification-on-phone_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/weight-lifting-simulator-2-roblox-hack_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-robux-master_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/goo-gl-wx0ofq-free-robux_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/cm-free-spins_GM406889139.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-robux-easy_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_off00002e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E90 22348 bytes
SHA-256: 3048815bef8156e8c127e38634adde853a6343852ac02a0e49d77dd5578c5b20
font_01_sfnt_off0000608d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608D 19784 bytes
SHA-256: ef3c8b4f3cfafc3ee864249984976075feb6499a671ac4b313d1f90c3a5d7f66

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