Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b3a7e5c1a1cd87…

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 19:31:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 288656bde21764b96f3224839cef4f0c SHA-1: 6edf9cdb850ad5f348fbd1cfb59838aeb0b1b251 SHA-256: 72b3a7e5c1a1cd87314efc2b83e6f98edff362bf5c3e41fdb2aee3fafa24f1c2
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/25-free-spins-coin-master-game-hack In PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-spins-link-haktuts_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
stream_003_off00004ab2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB2 24304 bytes
SHA-256: e4b9945ef23a010a677e61574bae165d14be4569e0ca5cbabb5ce0171a03c690
font_01_sfnt_off000081fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FA 18144 bytes
SHA-256: e61324631e03e98c071e12442239b73d0a12fcb8243797d210d051c8d69b565d

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