Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e69afc4b04eb45a…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 02:02:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 664238524c7f50af1d35528e25626f84 SHA-1: 82c779a7abcc7049a7ef2950053dbab0cac2c2f3 SHA-256: 9e69afc4b04eb45aa24ab911d48b54973c1d31d74f314b46c2056af60d300e54
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are related to game hacks and currency, suggesting a lure for phishing or malware. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the 'PDF_SEO_LINK_FARM' heuristic indicate a coordinated effort to direct users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/free-spins-coin-master-links-2021-game-hack
    • http://panaceafamilymedicine.com/images/robux-website_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/minecraft-anarchy-server-no-hacks_GM479516143.pdf
    • http://panaceafamilymedicine.com/images/how-do-you-get-free-robux-without-paying_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/united-gaming-net-coin-master-hack_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/roblox-bux-free_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/coin-master-unlimited-spins-apk-free-download_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/coin-master-free-online-game_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/100-robux_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/free-robux-no-anti-bot-verification_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/roblox-hacks-2021_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/how-to-get-free-robux-games_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/how-to-get-free-roblox-gift-cards_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/free-ways-to-get-robux_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/roblox-hack-app_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/coin-master-claim-spins_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/coin-master-pro-hack_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/can-i-get-robux-for-free_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/free-robux-hack-2021_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/free-coin-master-hacks-no-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ad9.bin
6d4e68f313f82f3190e2c332ae6fb62324f288154f58ee55ab35adaaa507b70d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD9 25592 bytes
font_01_sfnt_off00008441.bin
c809cb62993c96a2792eb05fd7593de41ec7ce02e3f179f2cd9cbcb899f0cf70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8441 18456 bytes

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