Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e1610a58383837…

MALICIOUS

PDF

46.4 KB Created: 2021-05-11 12:35:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 604e0c32104afde6ce976e5afbc2f016 SHA-1: 6a8705b9d9ae8895ee1fbb6db7039a395aeabe1b SHA-256: 11e1610a58383837ed8b9159b1127529bf5a6719673e0a1611c2f7b8e116661b
82 Risk Score

Malware Insights

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

The PDF document contains numerous links and lures related to free in-game currency and hacks for popular games, aiming to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and browser installation lures reinforces this assessment. The document's content and embedded URLs suggest a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

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/431946152/roblox-com-free-robux-game-hack
    • http://florentineholding.com/images/ways-to-get-free-robux-2021_GM431946152.pdf
    • http://florentineholding.com/images/coin-master-reward-link_GM406889139.pdf
    • http://florentineholding.com/images/is-minecraft-earth-free_GM479516143.pdf
    • http://florentineholding.com/images/free-robux-sites-2021_GM431946152.pdf
    • http://florentineholding.com/images/coin-master-free-spins-2021_GM406889139.pdf
    • http://florentineholding.com/images/coin-master-free-spins-hack_GM406889139.pdf
    • http://florentineholding.com/images/roblox-rape-hack_GM431946152.pdf
    • http://florentineholding.com/images/free-roblox-hack_GM431946152.pdf
    • http://florentineholding.com/images/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • http://florentineholding.com/images/how-to-get-free-robux-no-scam_GM431946152.pdf
    • http://florentineholding.com/images/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdf
    • http://florentineholding.com/images/robux-hack-free-robux_GM431946152.pdf
    • http://florentineholding.com/images/village-4-coin-master_GM406889139.pdf
    • http://florentineholding.com/images/coin-master-free-daily-spins-link_GM406889139.pdf
    • http://florentineholding.com/images/how-to-get-free-roblox_GM431946152.pdf
    • http://florentineholding.com/images/robux-no-human-verification_GM431946152.pdf
    • http://florentineholding.com/images/free-robux-discord_GM431946152.pdf
    • http://florentineholding.com/images/free-minecraft-hacks_GM479516143.pdf
    • http://florentineholding.com/images/free-robux-no-verification-or-survey_GM431946152.pdf
    • http://florentineholding.com/images/coin-master-hack-mod_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046f5.bin
38c86b87ea07d11267df9dc83ced948e8756b1090c31933482313ac180308be3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46F5 27580 bytes
font_01_sfnt_off0000857d.bin
43e72e756231cfd354bd65c2ed3b09ad4eff56ad11e7f155ed2920e6bb7860dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x857D 3992 bytes
font_02_sfnt_off000092a4.bin
c296ce3e2e2a101d3e2a91d968c24b195b6c9a3a72cf9c6f74fe8dc429b2d5e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92A4 18348 bytes

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