Malicious PDF — malware analysis report

Static analysis result for SHA-256 a60b41d85905dd97…

MALICIOUS

PDF

36.2 KB Created: 2021-06-18 15:05:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aebffb5ee24d91f24faf0cff7c904667 SHA-1: 535faf8ba8ef217ba437271c575e7396325806d8 SHA-256: a60b41d85905dd97f4a2c6d8e93d575fb5ce56ac789f1d965f5c6fa3d4d88886
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/free-roblox-gift-card-code-pastebin-game-hack. The document body and embedded URLs suggest a lure for game-related hacks or cheats, a common tactic for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.

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-roblox-gift-card-code-pastebin-game-hack In PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/master-coin-hack_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/best-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/robux-for-surveys_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-robux-today-only-2021_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-ipad_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_off00003452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3452 23076 bytes
SHA-256: d5f45c8ac637a35396b91e7bfa78e23e229fac884927fcf07d9ced57b1527c6d
font_01_sfnt_off00006833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6833 19204 bytes
SHA-256: e05b9e022211e1aad3187facde5154bd7180475a2d0b34533707b2c1a3cd3e72

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