Malicious PDF — malware analysis report

Static analysis result for SHA-256 09a56b0d009466b4…

MALICIOUS

PDF

15.6 KB Created: 2019-05-01 13:02:32 +01:00 Authoring application: mPDF 5.7
MD5: 6bf10d6a7c0532f7e263ea83c42d3ec3 SHA-1: 7a476cc1cabf7e870179a3d418bd11327f3f3427 SHA-256: 09a56b0d009466b4dc0ee408e7634fb05a5653f13a674c6e738e2500ca43adc3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm with 21 links, indicating a likely attempt to direct users to malicious or phishing content. While no scripts were extracted, the embedded URLs and the PDF structure strongly suggest a social engineering attack. The ML classifier also flagged this PDF as malicious.

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/3733738737736739/Harley-s-Achilles-The-Rock-Series-3-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/4732732738738736/Stryke-First-The-Rock-Series-5-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/4732732734731739/Jinxed-The-Rock-Series-2-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/4732732738738735/The-Rock-Series-The-Rock-Series-1-2-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/4735737734736738/Second-Time-Around-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/6739734730731731/An-Eye-for-an-Eye-Santorno-2-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/6739734730732737/Reflections-Santorno-6-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/6739734730731739/Beginnings-Santorno-8-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/8736731733739737/Assassin-s-Angst-Santorno-13-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/2736733731730737/Best-Laid-Plans-Assassin-Shifter-5-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/3731735738734730/Best-Laid-Plans-Assassin-Shifter-5-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/6739734730731730/Tricked-Bewildered-and-Bitten-Assassin-Shifters-25-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/6739734730732735/The-12-Olympians-Books-1-amp-2-The-12-Olympians-1-2-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/3733733735733734/The-Littlest-Assassin-Shifters-Assassin-Shifters-18-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/3731735738735731/The-Littlest-Assassin-Shifters-Assassin-Shifters-18-by-Sandrine-Gasq-Dion.pdf
    • http://cefasfese.4pu.com/1736731738735732/Dion-The-Wanderer-Talks-Truth-by-Dion-DiMucci.pdf
    • http://cefasfese.4pu.com/2735738731734734/Finding-Jordie-The-Love-Lies-Bleeding-Series-1-by-H-J-Harley.pdf
    • http://cefasfese.4pu.com/5737733733731731/Harley-Merlin-and-the-Stolen-Magicals-Harley-Merlin-3-by-Bella-Forrest.pdf
    • http://cefasfese.4pu.com/6739734730735739/The-Sandrine-Holt-Handbook---Everything-You-Need-to-Know-about-Sandrine-Holt-by-Emily-Smith.pdf
    • http://cefasfese.4pu.com/9739739731737736/Harley-Hahn-s-Guide-to-Unix-and-Linux-by-Harley-Hahn.pdf

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