Malicious PDF — malware analysis report

Static analysis result for SHA-256 b38478d0eeecb31e…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 01:28:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7ca2d86616846ad500e3494cd2f6445a SHA-1: e2dbf19014b8671b1459d2ccbf581b5b2189bf4f SHA-256: b38478d0eeecb31eaea867fb912c0d62e68bb8546a9e46a3523094f6235b1047
102 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are related to game hacking and cheats for popular games like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting an attempt to drive traffic to potentially malicious or scam-related content. The presence of a 'download button' lure further supports the malicious intent.

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/how-to-hack-the-robine-on-roblox-game-hack
    • http://lib.fekon.untad.ac.id/repository/roblox-free-robux-free-hack_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-https-coinms-net_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spin-facebook-link_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/roblox-ultimate-driving-hack_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/roblox-hacks-for-strucid_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-roblox-games_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-no-root_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/get-more-robux_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-game-hunter_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-roebucks-on-roblox_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/how-o-have-free-robux_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spins-link-facebook-page_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/hack-coin-master-free_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-tool-v1-9-download_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/microsoft-roblox-rewards_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/robux-generator-no-verification-needed_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-robux-without-promo-codes_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030bd.bin
08af65666ee65577b8415f2a3a43c24c8609b750e5adad8bedc3c470a0aab36c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30BD 22764 bytes
font_01_sfnt_off000063f7.bin
459581cd4a2a3204dd7bb7ed2ac5688b0704c020debf9f0592993c88321764af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63F7 19104 bytes

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