Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a6ee04ac08bfa29…

MALICIOUS

PDF

14.5 KB Created: 2019-05-02 05:41:42 +01:00 Authoring application: mPDF 5.7
MD5: 08b2a0a4a8392124b0517bbf87bd8c59 SHA-1: 14df279b9683d8502f4670ecf6fcfb00bfa37806 SHA-256: 9a6ee04ac08bfa29265028c3c1d70c3025bbf771b72d6f17cdeabd635c695814
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a malicious intent, possibly for SEO manipulation or to redirect users to malicious content. The ML_NYX_PDF_MALICIOUS classifier also flagged this document with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/9739734731739730/The-Michael-Crichton-Collection-Jurassic-Park-The-Lost-World-The-Andromeda-Strain-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/9739734732730737/The-Andromeda-Strain-Sphere-The-Great-Train-Robbery-Terminal-Man-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/9739734731739732/Crichton-at-the-Movies-Boxed-Set-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/4732738736733739/Micro-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/6732736734731739/Timeline-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/4731734732731/Disclosure-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/3739730734738730/Micro-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/2734735736731735/Airframe-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/3737739737736732/The-Terminal-Man-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/2730734734733737/Twister-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/4736734733730736/Sphere-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/1739734730736731/Sphere-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/1733737738730732/Airframe-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/2739736734736738/Prey-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/3731735736735738/Timeline-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/6735736738731731/Congo-The-Terminal-Man-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/9739734731733734/Electronic-Life-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/1738735736737730/The-13th-Warrior-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/9739734730737736/The-Science-of-Michael-Crichton-by-Kevin-R-Grazier.pdf
    • http://cefasfese.4pu.com/6735736737731738/Jurassic-Park-and-Congo-by-Michael-Crichton.pdf
    • http://cefasfese.4pu.com/2734735736731735/Airframe-by-Michael

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