Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d9235f284f8302b…

MALICIOUS

PDF

48.4 KB Created: 2021-06-10 18:30:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4eefd5e7ecee819aba0350b12f9fd7c3 SHA-1: c95f56a3d7d24694410f8b3cd3649dd7c49c4f60 SHA-256: 5d9235f284f8302b65fe7f1ace9518290b58435ac10d4c4d2c56875746446431
110 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are hosted on falconshipping-uae.com and appear to be related to game hacks and free items. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these external links, suggesting a coordinated effort to direct users to potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.tw/app/431946152/free-roblox-accounts-2021-january-game-hack
    • http://falconshipping-uae.com/userfiles/files/roblox-apk-hack-unlimited-robux-ultima-version_GM431946152.pdf
    • http://falconshipping-uae.com/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdf
    • http://falconshipping-uae.com/userfiles/files/free-coin-master-app_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/coin-master-daily-free-spins-link-haktuts_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdf
    • http://falconshipping-uae.com/userfiles/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf
    • http://falconshipping-uae.com/userfiles/files/free-roblox-clothes-for-your-avatar_GM431946152.pdf
    • http://falconshipping-uae.com/userfiles/files/coin-master-attack-hack-apk_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/real-free-robux-codes_GM431946152.pdf
    • http://falconshipping-uae.com/userfiles/files/free-minecraft-bedrock-server-hosting_GM479516143.pdf
    • http://falconshipping-uae.com/userfiles/files/hack-coin-master-game_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/instagram-coin-master-free-spins_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-spins-link-download-hack_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/free-robux-exe_GM431946152.pdf
    • http://falconshipping-uae.com/userfiles/files/minecraft-pc-free_GM479516143.pdf
    • http://falconshipping-uae.com/userfiles/files/blogspot-free-spins-coin-master_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/how-to-earn-robux-fast_GM431946152.pdf
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • http://falconshipping-uae.com/userfiles/files/www-bandicam-com-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005304.bin
730693e07e064ec12cb979dadcf6ba7af61aefa3b52c79fd4b8d301a7bc24af8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5304 25260 bytes
font_01_sfnt_off00008db5.bin
14fc25b543c4a853ce6475ff66c98955bc55bb2e425550bc9404700bc9092483		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB5 2868 bytes
font_02_sfnt_off0000979e.bin
98e9b1fe4c233823899135800867b2a0069c6833af3616ae5be9abb682efbb47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x979E 19168 bytes

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