Malicious PDF — malware analysis report

Static analysis result for SHA-256 089e661ef8b8d63e…

MALICIOUS

PDF

34.9 KB Created: 2021-06-27 05:06:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5d8785a16af161c22a481e1c0ce74af9 SHA-1: 755caecf833d4570bdbd7b2715b55ec72e516fd2 SHA-256: 089e661ef8b8d63e6860617e565356dda528a6135bbde0406060b4c357dbff86
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous embedded links to external websites, many of which are structured as SEO link farms for game hacks and cheats. The document's content and the presence of a "download button" heuristic suggest a lure to download malicious files. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/dooms-pike-brickbattle-roblox-cheat-game-hack
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-hack-money-on-roblox-retail-tycoon_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-hacks-for-mac_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/www-coin-master-hack-com_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-hack-roblox-accounts-2021-mobile_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/fake-robux-generator-for-free_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/someone-hacked-my-roblox-account-and-changed-my-password_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/coin-master-free-spin-and-coin_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-hack-into-coeptus-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/play-minecraft-for-free_GM479516143.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/coin-master-35-13-hack-download_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-free-promo-codes-2021-may_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/hack-app-for-roblox-computer_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/hack-version-coin-master-apk_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/script-fly-roblox-hack_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/coin-master-free-rewards-link_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-minecraft-gift-codes_GM479516143.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-scam_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/can-you-get-free-robux-on-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-robux-generator_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f64.bin
ece0b45a1216a32bc94514163401ac1dfe68d0686112a0c9346e331fd3e03bfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F64 22632 bytes
font_01_sfnt_off00006202.bin
a986834921f2162ef91ebd3c5c3f5439c587001d025b864e4ce3c0daaba39fd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6202 19628 bytes

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