Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf09b4b7fb4b2691…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 10:18:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f31669cec9dbe7a16cd66f036aeab13 SHA-1: c95ea59b7cfb9f0ec0e08033332639404d7a4ba8 SHA-256: bf09b4b7fb4b2691e6e17f8da52e6b66f5abba5b02e7db75deb1b1db34d72e56
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors and other PDF files, masquerading as game hacks and cheats. The primary lure appears to be related to Minecraft and Robux, aiming to trick users into clicking malicious links. No scripts were extracted, but the document's structure and embedded links strongly suggest a phishing or social engineering attack.

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/479516143/how-to-hack-minecraft-pe-game-hack In PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/infinite-robux_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/hack-facile-robux_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-coins-on-coin-master-without-verification_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_off00003373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3373 22044 bytes
SHA-256: 0fa1a0157bc7cf801c6090125d58effb3a32bac70254d502c6d78cbd9a2b0aad
font_01_sfnt_off000063ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EF 18488 bytes
SHA-256: 219457e29f33dfec07786a29e70830a20555f796e9e6bb3f533c171663b580ef

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