Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09be7b7086f12a6…

MALICIOUS

PDF

35.6 KB Created: 2021-06-19 09:27:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 56eec79a0cfaf290b38e69a6d4a6d22f SHA-1: 7cf4f83a715c4c737ebfef4a4b494dbbfd548e1e SHA-256: f09be7b7086f12a6f25beee575b505c37c49b597bb3c85116d201621d382cb89
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous links to websites that offer "free generators" or "hacks" for popular games, such as Roblox and Coin Master. These links lead to known malicious redirectors, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs strongly suggest a social engineering attack designed to lead users to potentially harmful content or further malicious downloads.

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-robux-no-real-money-game-hack In PDF document text
    • http://solidcommunication.ch/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-get-frozen-hair-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/roblox-lua-script-hack_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-cheat-money-in-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/tiktok-free-followers-and-likes_GM835599320.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-robux-help_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://solidcommunication.ch/images/html-robux-hack_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/roblox-present-free-object_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://solidcommunication.ch/images/lastrick-com-coin-master-hack_GM406889139.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_off000032ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AB 22860 bytes
SHA-256: e704d183c7a7d6e853be613ffce40a520521900e9f9ae48a840cccd18fa43b14
font_01_sfnt_off000065ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EC 19164 bytes
SHA-256: 827c821f269343d9f88c2ad65a4c38df0dfa4a541ee4957af352356347d90a2a

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