Malicious PDF — malware analysis report

Static analysis result for SHA-256 135bd770ff31df8e…

MALICIOUS

PDF

26.2 KB Created: 2021-06-29 19:37:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7a2c53e6cac3669a980a3d75a4c986aa SHA-1: b742733b03bc435be42d9d71b05eaa2477f931bc SHA-256: 135bd770ff31df8e59579ad736ad84e0653f60e2db66227315b628ba9be8d1ff
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links designed to appear as resources for Roblox game hacks and free Robux. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm or SEO poisoning tactic. The primary URL http://netcdn.co/app/431946152/hack-the-plaza-beta-on-roblox-game-hack is likely the malicious destination. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 3

  • 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.
  • 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 http://netcdn.co/app/431946152/hack-the-plaza-beta-on-roblox-game-hack
    • http://digilibfisip.unla.ac.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/roblox-animation-free-download_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-roblox-com_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/how-get-free-robux-in-the-missions_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/free-pro-roblox-gear_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/infinite-robux-cheat_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/robux-free-c_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/free-horror-games-multiplayer-roblox_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/daily-free-spins-for-coin-master_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/hack-de-robux-100-real-no-fake_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/free-minecraft-hacks_GM479516143.pdf
    • http://digilibfisip.unla.ac.id/repository/free-card-link-coin-master_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/watch-videos-for-robux_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/egg-farm-simulator-hack-roblox_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/minecraft-free-online-unblocked_GM479516143.pdf
    • http://digilibfisip.unla.ac.id/repository/instagram-free-coin-master-spins_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/show-me-how-to-get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000330e.bin
b22726bdf815dff9d6adc6b7b6b772c90a4935bd532e58ca63b29e45013354dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x330E 22632 bytes

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