Malicious PDF — malware analysis report

Static analysis result for SHA-256 f06a4b9ff3d8f3d9…

MALICIOUS

PDF

45.2 KB Created: 2021-05-14 16:18:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c0a2de83e6d9b35334f4d6dca9b7b885 SHA-1: 85e65ea6a2aacc597a86bfbf2076bf7881e0743e SHA-256: f06a4b9ff3d8f3d9baa0ad40604f9c73e4754338a1a53fad23d3ffac994968ad
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that appear to be part of a scam, offering free game currency or hacks. The heuristic firings indicate malicious redirector links and a lure for game-related cheats. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially malicious sites, likely for phishing or ad fraud.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/free-robux-sites-that-work-game-hack In PDF document text
    • http://s-punkt-objects.de/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/roblox-system_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/roblox-person_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004950.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4950 24624 bytes
SHA-256: 2ab6033ebbab02e63b205ff8ba571847f92ab5789e49f5c2abd26f55bc2d4e1c
font_01_sfnt_off000081b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B4 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00008bc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC4 19000 bytes
SHA-256: c0bc6bb0706fab35ff455fc4816471a1ab7f6ae4486f691ef98043b3efa3f18d

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