Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc6e5d63dc9a3203…

MALICIOUS

PDF

16.5 KB Created: 2019-06-08 11:30:28 +01:00 Authoring application: mPDF 5.7
MD5: a732276cbf616ccf9c992eee169c1a79 SHA-1: 7b8628098fa4b6427b7729e1410b1323598be57e SHA-256: bc6e5d63dc9a3203ab644da4ecb6ed13130c047d2abf84aaf777d60ac095e60f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links, forming a link farm. The primary heuristic indicates this is a critical finding, suggesting the document is designed to redirect users to numerous external PDF files. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/5733737731737738/The-Awakening-1899-by-Kate-Chopin-Novel-Genre-Feminist-Literature-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/5735731731732739/The-Awakening-By-Kate-Chopin-Illustrated-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/9739734737731734/Kate-Chopin-s-The-Awakening-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/3732737738735734/The-Awakening-and-Selected-Stories-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/6737737739739/The-Awakening-and-Selected-Short-Stories-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/4737730730739733/The-Awakening-and-Selected-Short-Fiction-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/9731731735736738/The-Awakening-Centaur-Classics-The-100-greatest-novels-of-all-time---89-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/7734736735735737/THE-AWAKENING---A-Solitary-Soul-Feminist-Classics-Series-One-Women-s-Story-from-the-Turn-Of-The-Century-American-South-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/6734733730733733/The-Storm-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/6734733731734735/The-Kiss-and-Other-Stories-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/6734733731737738/Lilacs-and-Other-Stories-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/3735731737733730/The-Story-of-an-Hour-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/5734738736732730/Le-sorcier-de-Gettysburg-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/4734734739734730/A-Pair-of-Silk-Stockings-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/6734733730737734/Unveiling-Kate-Chopin-by-Emily-Toth.pdf
    • http://cefasfese.4pu.com/6734733730737733/Bayou-Folk-and-A-Night-in-Acadie-by-Kate-Chopin.pdf
    • http://cefasfese.4pu.com/6734733732734733/Chopin-Waltzes-For-the-Piano-vol-27-by-Fr-d-ric-Chopin.pdf
    • http://cefasfese.4pu.com/2737736730739731/Artemis-Awakening-Artemis-Awakening-1-by-Jane-Lindskold.pdf
    • http://cefasfese.4pu.com/7733737736732734/Three-Nocturnes-Field-Chopin-Boulanger-by-Various.pdf
    • http://cefasfese.4pu.com/3731732731731739/Chopin-s-Funeral-by-Benita-Eisler.pdf

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