Malicious PDF — malware analysis report

Static analysis result for SHA-256 27366c47e27075fd…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 13:06:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 176d695b13342c1e8c9e2fc31bb898a1 SHA-1: 6ae37c9b041632245cf250b6584aa609e0e9fa0d SHA-256: 27366c47e27075fd5fe48e4f7fff4430fcaa6d0275bda479ba0e3a8420c70217
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which point to other PDF files with "free" game currency or cheats, suggesting a link farm designed to attract traffic. One prominent URL, https://netcdn.online/app/1094591345/pokemon-go-free-pokecoins-hack-game-hack, is presented as a lure for "Pokemon Go Free Pokecoins Hack". While no scripts were explicitly extracted, the PDF structure and the nature of the links indicate a malicious intent to redirect users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.online/app/1094591345/pokemon-go-free-pokecoins-hack-game-hack
    • http://digilib.unla.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdf
    • http://digilib.unla.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/coin-master-free-spin-trick_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdf
    • http://digilib.unla.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://digilib.unla.ac.id/repository/boost9-com-roblox-hack_GM431946152.pdf
    • http://digilib.unla.ac.id/repository/todays-free-spin-and-coin-links_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/minecraft-multiplayer-free_GM479516143.pdf
    • http://digilib.unla.ac.id/repository/free-robux-without-verification-2021_GM431946152.pdf
    • http://digilib.unla.ac.id/repository/gold-cards-coin-master-hack_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/coin-master-hack-apk-android-1_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/coin-master-fan-page-giveaway_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/coin-master-hacker-club_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/free-robux-reddit_GM431946152.pdf
    • http://digilib.unla.ac.id/repository/coin-master-free-raid-link_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/free-online-spins-coin-master_GM406889139.pdf
    • http://digilib.unla.ac.id/repository/get-free-robux-info_GM431946152.pdf
    • http://digilib.unla.ac.id/repository/get-free-spins-in-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eb9.bin
f89facea9d77327a4a56705c109e7e1f35d67e13d6c2533f3231aa76cdfb0963		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB9 23952 bytes
font_01_sfnt_off0000852e.bin
64c53edae7920bc04119553d13e7f88c7ab8c9d6abd0f5e62be35afdb33f76ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x852E 2920 bytes
font_02_sfnt_off00008f4a.bin
92eeaf5b7717eb337764799241de5e67c51f79bfa1c6ac6354d8ebfb444d829b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F4A 18192 bytes

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