Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fb6bbdc1f6f592…

MALICIOUS

PDF

33.8 KB Created: 2021-07-08 14:50:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-13
MD5: 0b4f74a184ed430115fc2142c8d252ff SHA-1: 1484e845bd6750af7cd126ce913461e6d7642f2e SHA-256: f2fb6bbdc1f6f5924ae3b32eac27ee37acbf45c92238e72c10498fb3bb6b86ee
160 Risk Score

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/479516143/minecraft-bedrock-free-with-java-game-hack In PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/free-generator_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/i-got-hacked-in-roblox-lost-robux_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-bubblegum-simulator-cheats_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/framed-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/all-might-roblox-free-shop-t-schirts_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-fly-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-hack-download-explode_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/descargar-roblox-hackeado-con-robux_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/how-to-hack-people-and-get-there-robux_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/free-roblox-accounts-generator-with-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
font_00_sfnt_off00003012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3012 21472 bytes
SHA-256: 23060c0d644c8a888422c8187291ec2c3b52df8c57b6d8d2c3fb636d4a903892
font_01_sfnt_off00005ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBB 19204 bytes
SHA-256: 83f28f522109b57a387354fb29e9d473d9efeebf56f50fcbd96710e633a7f7ef

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