Malicious PDF — malware analysis report

Static analysis result for SHA-256 21c4307b34ad266e…

MALICIOUS

PDF

15.7 KB Created: 2021-06-18 00:23:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 301290180c0be6d508e2b129c0cab5d0 SHA-1: e0e7f1ff09b2a6eaf92e6aba453cb5781bccda7a SHA-256: 21c4307b34ad266ee0dbcb60d81ebcbb46e48e246d88739d5964d7be720c0f8b
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external resources, many of which are SEO-optimized PDFs advertising game cheats and hacks. The primary URL, http://netcdn.co/app/431946152/roblox-high-school-cheat-engine-game-hack, suggests a lure for users seeking game exploits. The heuristic PDF_SEO_LINK_FARM indicates a large number of linked PDFs, likely intended to drive traffic to malicious or deceptive content. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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/roblox-high-school-cheat-engine-game-hack
    • https://lib.unitri.ac.id/repository/fly-script-hack-roblox_GM431946152.pdf
    • https://lib.unitri.ac.id//repository/minecraft-free-online-games_GM479516143.pdf
    • https://lib.unitri.ac.id/repository/my-roblox-girlfriend-cheated-on-me_GM431946152.pdf
    • https://lib.unitri.ac.id/repository/coin-master-hack-online-cheat_GM406889139.pdf
    • https://lib.unitri.ac.id/repository/no-human-verification-coin-master-hack_GM406889139.pdf
    • https://lib.unitri.ac.id/repository/hack-roblox-btools-2021_GM431946152.pdf
    • https://lib.unitri.ac.id/repository/how-to-get-free-skins-in-roblox_GM431946152.pdf
    • https://lib.unitri.ac.id//repository/play-minecraft-pocket-edition-for-free_GM479516143.pdf
    • https://lib.unitri.ac.id/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdf
    • https://lib.unitri.ac.id/repository/boombox-backpack-roblox-free_GM431946152.pdf
    • https://lib.unitri.ac.id/repository/roblox-admin-house-hack-kohls-admin-house_GM431946152.pdf
    • https://lib.unitri.ac.id/repository/coin-master-gold-cards-free-link_GM406889139.pdf
    • https://lib.unitri.ac.id//repository/how-to-get-free-stuff-on-roblox_GM431946152.pdf
    • https://lib.unitri.ac.id/repository/how-to-get-free-robux-on-macbook-pro-2021-ios_GM431946152.pdf
    • https://lib.unitri.ac.id//repository/rbxoffers-com-free-robux_GM431946152.pdf
    • https://lib.unitri.ac.id/repository/how-to-get-real-robux_GM431946152.pdf
    • https://lib.unitri.ac.id//repository/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdf
    • https://lib.unitri.ac.id/repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdf
    • https://lib.unitri.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://lib.unitri.ac.id/repository/coin-master-free-redeem-code_GM406889139.pdf

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