Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bb3535306164422…

MALICIOUS

PDF

45.5 KB Created: 2021-06-02 10:54:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ad17862b3c96b34f9f806d055103894e SHA-1: 5bdfe1c5ba36f2f978c85854f79818a816abf4e2 SHA-256: 3bb35353061644226c400b32b777a7a9b6dd9fb95d376fde5983d2ef686779d0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and in-game currency to trick users into clicking malicious links. The embedded links, such as 'https://netcdn.xyz/app/431946152/how-to-make-a-skin-in-roblox-for-free-game-hack', lead to known malicious redirectors. These redirectors likely serve further lures or download additional malicious content, indicating a phishing or social engineering attack. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/431946152/how-to-make-a-skin-in-roblox-for-free-game-hack In PDF document text
    • http://montchanintt.fr/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/how-to-get-tiktok-famous-free_GM835599320.pdfIn PDF document text
    • http://montchanintt.fr/images/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • http://montchanintt.fr/images/free-minecraft-realms-to-join_GM479516143.pdfIn PDF document text
    • http://montchanintt.fr/images/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/ghow-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://montchanintt.fr/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/free-minecraft-codes-2021_GM479516143.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_off00005085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5085 26836 bytes
SHA-256: 9c65b967f44d3897f715aaff17d412c1f48ea512ed194e7b3e99ff229f20bfde
font_01_sfnt_off00008de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE3 18828 bytes
SHA-256: 67ec9b8fe806191cb8bebc47b770d1172c414567fad55cefa23a122661853678

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