Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d4202c6e39f485d…

MALICIOUS

PDF

34.2 KB Created: 2021-06-22 05:34:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1615915445566dad086da30b561f25bf SHA-1: 925fee270e2901150efe275e89ae30f2f533cec5 SHA-256: 0d4202c6e39f485d6e6a9d0f5c4275dad6d7e78a204b1fc1f4f9646dd43860df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or downloads. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

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/406889139/coin-master-hack-2021-android-game-hack In PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/roblox-free-vip-servers-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/furk-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/roblox-skin-free_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/robux-download_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-8-ball-pool_GM406889139.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/roblox-hax_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • https://www.hendrejuniorschool.co.uk/admin/ckfinder/userfiles/files/wurst-hacks_GM479516143.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_off0000309d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309D 22268 bytes
SHA-256: d9894288ae8925b0af11505ff9c982458a76bca4f87bb765c7fa7bac5438975f
font_01_sfnt_off000061fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FE 18580 bytes
SHA-256: f67f88b1ce6c5db430876b5da8c68a5518a964090ab37f1ab5b5be580e390e4d