Malicious PDF — malware analysis report

Static analysis result for SHA-256 694ae306be095378…

MALICIOUS

PDF

34.8 KB Created: 2021-05-23 01:44:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 660e12f732d411d869632606649e7bfb SHA-1: 2f95ca86bf2d4be942354edd13454457cb2e3609 SHA-256: 694ae306be0953787857e328d4deac1daaf1d97f01877f8252597160ae245dee
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a browser extension or update, along with a call-to-action button, indicating a social engineering attempt. It also embeds multiple URLs, including one pointing to a site offering 'free TikTok likes without verification', suggesting a scam or malware distribution. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/835599320/free-tiktok-likes-without-verification-game-hack
    • http://alexandrion.com/images/woman-roblox_GM431946152.pdf
    • http://alexandrion.com/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdf
    • http://alexandrion.com/images/free-spin-link-for-coin-master_GM406889139.pdf
    • http://alexandrion.com/images/free-spins-coin-master-without-completing-offers_GM406889139.pdf
    • http://alexandrion.com/images/minecraft-hack-client-18-9_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002e79.bin
7fe1a72ed5db38059a36938d40a8ee307f05ba9240585931a13e57e8e13dee7f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E79 24376 bytes
font_01_sfnt_off0000668b.bin
2890867b549cf671f2c98eef92adc8de00a1acce0cbbf08ac1c0ae5a6c34295b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x668B 18324 bytes

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