Malicious PDF — malware analysis report

Static analysis result for SHA-256 94cdcda4d78c6fa7…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 01:20:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c3c12ddf7c57f728a7edad0a13fe524b SHA-1: def2162549d9f104468a81d4298d7cb606b0c775 SHA-256: 94cdcda4d78c6fa70054f88d86b853e219cf0467e37481f316c1e9c8faf2941c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/cheat-shower-simulator-roblox-game-hack, is identified as a malicious redirector. The document body and numerous other extracted URLs reinforce this theme of exploiting user interest in free in-game items. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/cheat-shower-simulator-roblox-game-hack In PDF document text
    • http://www.copoint.co.uk/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/roblox-hack-menus_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/robux-premium_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-roblox-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-accessories-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-robux-without-doing-anything_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_off00002e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8B 22380 bytes
SHA-256: dbefc03dba7bc93554a6e10e7e6cb039cdaf941b143a1e5a7175a25a01771b53
font_01_sfnt_off00006044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6044 19256 bytes
SHA-256: d5d1e76b0c6edf85335a3e2a704cf18d87a6ffba1655a5001ac257a5f20e7408

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