Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd020a9b7df03af…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 15:47:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: ff56a21a5881cb1c9769e5c2cc953fb4 SHA-1: 29f983696b340b7f6876fabf17369840bcdff855 SHA-256: 3dd020a9b7df03affd856a04839c3e38c46778d3c1eab803626589226c63a722
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.tw/app/406889139/haktuts-coin-master-free-spin-link-today-game-hack In PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/one-by-one-by-one-in-april-fools-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/roblox-how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-hack-deathrun-2-on-roblox_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-free-hair-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/dominokid123-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-know-if-you-have-been-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-make-a-hacked-private-server-on-roblox_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_off00003263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3263 22572 bytes
SHA-256: 06a9f8936ae37e857c8e9e97eff85df5c8f29cbc99bab507a3eab0c71a9fa77f
font_01_sfnt_off000064a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A1 18840 bytes
SHA-256: 2eb33f29e5f0a270c974041c6ebecba72dad6cc1554e7739012cc853d86473b0