Malicious PDF — malware analysis report

Static analysis result for SHA-256 7822f6053d97e29f…

MALICIOUS

PDF

42.0 KB Created: 2021-05-21 21:39:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 669cbb152bb0d2097ff7f83376cac57d SHA-1: e5af4a5b20ddf12fc08f645d0c8954117cae0b7c SHA-256: 7822f6053d97e29f068192d239bcae1be65ad2702d7b245aed661bdca0ef3266
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9506

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/431946152/free-roblox-generator-for-roblox-game-hack In PDF document text
    • https://mubaohiemasia.com/ckfinder/userfiles/files/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://mubaohiemasia.com/ckfinder/userfiles/files/roblox-verification_GM431946152.pdfIn PDF document text
    • https://mubaohiemasia.com/ckfinder/userfiles/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://mubaohiemasia.com/ckfinder/userfiles/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://mubaohiemasia.com/ckfinder/userfiles/files/www-rbxhut-com_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
stream_002_off0000361e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x361E 34456 bytes
SHA-256: b4b6ddb97da127991e0d7846bd91c5bb98dc2d9a3171688869822acc653c9794
font_01_sfnt_off00008350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8350 18280 bytes
SHA-256: a933d21998376b1e1789d4c480c6983ef3f135197d1bc74c37b8b8f8713ff5e6

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