Malicious PDF — malware analysis report

Static analysis result for SHA-256 68b9f2b2f0014e55…

MALICIOUS

PDF

22.3 KB Created: 2019-05-02 07:35:22 +01:00 Authoring application: mPDF 5.7
MD5: 39b6b8045b70e51ff931d3cb37c4979c SHA-1: b893c10b6400f0275967fd303cd770a9db7c8c59 SHA-256: 68b9f2b2f0014e551ca0a9325187abb26326867817cc4364dcd7f1a0a7c739d5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute further malicious content. The ML classifier also flagged this document as malicious. While the specific intent of these links is unclear, the sheer volume suggests a malicious purpose, likely to drive traffic or distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9784

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/1731738733739730731/November-s-Fury-The-Deadly-Great-Lakes-Hurricane-of-1913-by-Michael-Schumacher.pdf
    • http://cefasfese.4pu.com/5730738738737738/Masters-of-Empire-Great-Lakes-Indians-and-the-Making-of-America-by-Michael-A-McDonnell.pdf
    • http://cefasfese.4pu.com/1738735735735736/Into-the-Storm-Two-Ships-a-Deadly-Hurricane-and-an-Epic-Battle-for-Survival-by-Tristram-Korten.pdf
    • http://cefasfese.4pu.com/9734730/Fury-The-Seven-Deadly-3-by-Fisher-Amelie.pdf
    • http://cefasfese.4pu.com/3733733735734736/The-Death-and-Life-of-the-Great-Lakes-by-Dan-Egan.pdf
    • http://cefasfese.4pu.com/5736733730736/Cargoes-on-the-Great-Lakes-by-Marie-McPhedran.pdf
    • http://cefasfese.4pu.com/1730739736737730732/Odyssey-of-A-Great-Lakes-Sailor-by-Ranga-Iyer.pdf
    • http://cefasfese.4pu.com/3734731735732731/The-Great-Lakes-Water-Wars-by-Peter-Annin.pdf
    • http://cefasfese.4pu.com/8731732734731733/Mammals-of-the-Great-Lakes-Region-by-Allen-Kurta.pdf
    • http://cefasfese.4pu.com/4734731731735731/Crossroads-The-Life-and-Music-of-Eric-Clapton-by-Michael-Schumacher.pdf
    • http://cefasfese.4pu.com/8731732735738737/Amphibians-and-Reptiles-of-the-Great-Lakes-Region-by-James-H-Harding.pdf
    • http://cefasfese.4pu.com/5730733738738733/From-Ouisconsin-to-Caughnawaga-Or-Tales-of-the-Great-Lakes-First-Nations-by-David-D-Plain.pdf
    • http://cefasfese.4pu.com/6734731736732736/Season-of-the-Witch-A-Great-Lakes-Shipwreck-Tale-by-Mark-David-Veum.pdf
    • http://cefasfese.4pu.com/8731739731732735/The-Upper-Country-French-Enterprise-in-the-Colonial-Great-Lakes-by-Claiborne-A-Skinner.pdf
    • http://cefasfese.4pu.com/1731738739737739737/Jack-amp-Susan-in-1913-by-Michael-McDowell.pdf
    • http://cefasfese.4pu.com/7730736732735731/Know-Your-Ships-2006-Guide-to-Boats-amp-Boatwatching-Great-Lakes-amp-St-Lawrence-Seaway-by-Roger-Lelievre.pdf
    • http://cefasfese.4pu.com/7730736732736735/Know-Your-Ships-2005-Guide-to-Boats-amp-Boatwatching-Great-Lakes-amp-St-Lawrence-Seaway-by-Roger-A-Lelievre.pdf
    • http://cefasfese.4pu.com/7730736731739730/Know-Your-Ships---Guide-to-Boats-amp-Boatwatching-Great-Lakes-amp-St-Lawrence-Seaway-41st-Edition-by-Roger-A-Lelievre.pdf
    • http://cefasfese.4pu.com/3734732732737738/Washed-Away-How-the-Great-Flood-of-1913-America-s-Most-Widespread-Natural-Disaster-Terrorized-a-Nation-and-Changed-It-Forever-by-Geoff-Williams.pdf
    • http://cefasfese.4pu.com/2732731731734731/Hurricane-Hurricane-1-by-Jenna-Lynne-Duncan.pdf

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