Malicious PDF — malware analysis report

Static analysis result for SHA-256 06469b1bef069527…

MALICIOUS

PDF

35.1 KB Created: 2021-07-09 03:03:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 028bc9c46d028438f70f0c8d4a4dcee5 SHA-1: 487b060c42cab839143c29d3951ab0f508585d43 SHA-256: 06469b1bef06952720c29e26fb6b09479e207b8db5a5c04ca1714ce425ffba3d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generator / game hack' lures. The primary redirector URL is http://netcdn.tw/app/431946152/how-to-get-free-robux-easy-no-download-game-hack. This indicates a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam attempt.

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/431946152/how-to-get-free-robux-easy-no-download-game-hack In PDF document text
    • https://www.bumbar-sport.hr/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/roblox-how-to-get-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/free-avatar-animations-roblox_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/hack-roblox-brute-force_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/unlimited-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/tiktok-free-cuthbert_GM835599320.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/free-unused-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/get-free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://www.bumbar-sport.hr/files/hacker-de-robux-para-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_off00002f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0B 22952 bytes
SHA-256: 9b3c32f69c5ca5cf7dac717d6f0d5eddee845f7765e50834e43da6766e70c4e7
font_01_sfnt_off00006284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6284 19580 bytes
SHA-256: cec9a933bfe218ed72e75e78f410bfe5e0ee423effe7607af1f96a02e11767e9

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