Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0529dafde83b9e7…

MALICIOUS

PDF

34.5 KB Created: 2021-06-29 21:00:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 77edb4c9342f165523307436ffb800bc SHA-1: 2d774c4e50d86b7e499fe26ee80a4449a8cbbc77 SHA-256: a0529dafde83b9e762aa947f5f1a0724824f2ea094ad40fc9c8d57908901b476
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators, directing users to a known malicious redirector. The embedded URL `http://netcdn.co/app/431946152/roblox-free-play-no-install-game-hack` is a primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attack, likely intended to deliver a secondary payload or lead to credential harvesting.

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/roblox-free-play-no-install-game-hack In PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-roblox-jail-break-hack_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/hack-into-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-20219_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-free-robux-from-your-game_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-anything-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-free-robux-using-pastebin-2021_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-can-i-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-cheats-in-roblox-jail-break_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/obby-co-nf-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-hack_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_off000030dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DD 21960 bytes
SHA-256: 017edb115298556383dc292859226fd8759627ec078edd3ead22536c45da1cf2
font_01_sfnt_off00006174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6174 19088 bytes
SHA-256: 18743fea3d19b4b749287903786e1847471b0758e0be5d7c0eb3d70f591cc303

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