Malicious PDF — malware analysis report

Static analysis result for SHA-256 53eef9bc147fe86b…

MALICIOUS

PDF

16.5 KB Created: 2019-05-02 06:12:27 +01:00 Authoring application: mPDF 5.7
MD5: cfa36f931d91f923a835a203887059a0 SHA-1: b5a862fcb2e3141a8043a7168d35bf222a27469c SHA-256: 53eef9bc147fe86bc7b2aead54c39d5eb21c4a583b1d7d1f7f39af74a27ec34e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO poisoning or to distribute malicious content. 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/4738730737735739/Murder-For-Christmas-amp-Three-Other-Great-Mysteries-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/7736732731731737/Clues-to-Christie-The-Definitive-Guide-to-Miss-Marple-Hercule-Poirot-Tommy-amp-Tuppence-and-All-of-Agatha-Christie-s-Mysteries-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/1730735736737733738/Murder-on-the-Orient-Express-The-Agatha-Christie-Collection-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/3732735735736732/Murder-On-The-Links-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/3732735735736733/Murder-in-Mesopotamia-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/2731735731738735/Sleeping-Murder-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/4731730730732732/The-Murder-at-the-Vicarage-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/4737736739730731/Murder-on-the-Nile-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/7731731737736738/De-verfilmde-bestsellers-van-Agatha-Christie-Moord-in-de-Ori-nt-Expres-De-moordenaar-waagt-een-gok-Drama-in-drie-bedrijven-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/1731738737731730734/Classic-Mysteries-Poirot-Miss-Marple-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/2737730737738731/Murder-on-the-Orient-Express-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/8734732737736731/The-Murder-of-Roger-Ackroyd-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/3736731739737738/The-Tape-Measure-Murder-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/2733731738734736/Murder-on-the-Orient-Express-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/4731738738736/The-Murder-on-the-Links-Hercule-Poirot-2-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/1737736736735732/The-Murder-at-the-Vicarage-Miss-Marple-1-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/7732735732735/Murder-in-the-Mews-Hercule-Poirot-18-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/2737731738732733/Murder-in-Mesopotamia-Hercule-Poirot-14-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/3733733735734739/A-Murder-Is-Announced-Miss-Marple-5-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/3737736730738/A-Murder-Is-Announced-Miss-Marple-5-by-Agatha-Christie.pdf
    • http://cefasfese.4pu.com/7731731

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