Malicious PDF — malware analysis report

Static analysis result for SHA-256 79506e4d8ca54709…

MALICIOUS

PDF

33.1 KB Created: 2021-06-20 06:41:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b8ee5066dc6129d6467dfc4d130561ce SHA-1: 50e7b68ad60f7d4b3c7dc66cba5a90a4feed5131 SHA-256: 79506e4d8ca54709c35c28d604c065098d18bdeee0422151e4164fe221c16177
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a primary URL, http://netcdn.co/app/479516143/tiktok-minecraft-hacks-game-hack, that are presented as sources for game hacks and currency. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, suggesting a link farm designed to attract users searching for cheats. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this PDF, likely serving as a lure for malware downloads or phishing.

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/479516143/tiktok-minecraft-hacks-game-hack
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-do-i-use-hacks-in-roblox_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/roblox-cheat-engine-2021_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/download-all-free-roblox-games_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/coin-master-free-gold-cards_GM406889139.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/safe-free-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/roblox-free-draw_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/are-there-any-codes-to-earn-free-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/roebucks-on-roblox_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/hack-account-roblox-2021-edit-this-cookies_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-earn-free-robux-in-roblox-2021_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-hack-roblox-on-ipad-to-get-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/minecraft-112-hacked-client_GM479516143.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-free-robux-legit_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/roblox-private-server-free-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/free-robux-promo-codes-2021-not-expired_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/pokemon-go-free-862_GM1094591345.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/como-descargar-hack-en-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_off00002f69.bin
c9d23b3f706a32d9bb618fb5bd6b217508844f9adbbf957458e67287ed60d78f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F69 21844 bytes
font_01_sfnt_off00005eeb.bin
49b148a5ca756e3f3293ae7356a748e2214796aae6d20bfd78280b7e22c0c315		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEB 18168 bytes

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