Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab3a9ed5a80c3ffc…

MALICIOUS

PDF

41.0 KB Created: 2021-05-19 22:55:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f161462a7060fe5e048dc4c3094c9d67 SHA-1: 3460e116e4aab88d0a94843b5689890de946227a SHA-256: ab3a9ed5a80c3ffcc0666e8780bab9a734a101b4b0eb5cedd342f161e2ba6250
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, masquerading as "free generators" or "game hacks" to entice clicks. The primary malicious URL identified is https://netcdn.xyz/app/835599320/tiktok-free-books-website-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a phishing or social engineering attack aimed at redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/835599320/tiktok-free-books-website-game-hack In PDF document text
    • http://fairwaygolftravel.co.uk/images/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/roblox-e-free_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/master-coins-free_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/roblox-free-robux_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_003_off00004779.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4779 24200 bytes
SHA-256: 61099b05decea2b6eadff88074cff422ed5094f2daf6454e14a0d12a0e425b32
font_01_sfnt_off00007e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8E 18028 bytes
SHA-256: 7311358b96b277ae513d4adfcf3cd5fa362f913cc8b503a20f340b6286187d24

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