Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69e9fc1ec711f7a…

MALICIOUS

PDF

15.5 KB Created: 2019-05-02 05:06:38 +01:00 Authoring application: mPDF 5.7
MD5: d307c00216f3669e7b17a8f946e9a660 SHA-1: 1b80cfaddd8bef899a55528126d7dc2a58b8b483 SHA-256: b69e9fc1ec711f7afaefad0da7cb8f8f6103e88629ca0b201599e4b265cd9717
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While many of these links point to benign content, the sheer volume and the ML_NYX_PDF_MALICIOUS classification indicate a malicious intent. The embedded links likely serve as a lure to direct users to external resources, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

Heuristics 2

  • 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.
  • 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://cefasfese.4pu.com/2736733730731/Sleepside-The-Collected-Fantasies-of-Greg-Bear-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/4736735737739/Eon-The-Way-1-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/1736731734733731/Mariposa-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/1730737732734732/Hull-Zero-Three-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/8732735738738/Eternity-The-Way-2-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/2733736736733731/Moving-Mars-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/6731737735730/The-Infinity-Concerto-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/9732738732730/Don-t-Worry-Bear-by-Greg-E-Foley.pdf
    • http://cefasfese.4pu.com/2736737738732/The-Infinity-Concerto-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/1731736730737734733/Marte-in-fuga-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/4737738732732737/The-Serpent-Mage-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/4738732734735732/The-Infinity-Concerto-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/1730733739736735/Slant-Queen-of-Angels-4-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/3735733731730737/Heads-Queen-of-Angels-2-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/8735736735734/Anvil-of-Stars-Forge-of-God-2-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/3732734732738/Manifestation-Wolverine-The-Collected-Poetry-of-Ray-Young-Bear-by-Ray-Young-Bear.pdf
    • http://cefasfese.4pu.com/3733737733733733/The-Collected-Fantasies-Vol-3-The-Airtight-Garage-The-Collected-Fantasies-of-Jean-Giraud-3-by-M-bius.pdf
    • http://cefasfese.4pu.com/2734739734732/Queen-of-Angels-Queen-of-Angels-1-by-Greg-Bear.pdf
    • http://cefasfese.4pu.com/1738734736734738/His-Bear-s-Necessity-Return-To-Bear-Bluff-2-by-Harmony-Raines.pdf
    • http://cefasfese.4pu.com/2735733738738739/The-Little-Bear-and-the-Big-Bear-A-story-designed-to-help-teach-children-how-to-deal-with-frustration-anxiety-and-anger-by-Monica-Dumont.pdf
    • http://cefasfese.4pu.com/1730733739

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