Malicious PDF — malware analysis report

Static analysis result for SHA-256 2143fe068b5d40c6…

MALICIOUS

PDF

14.7 KB Created: 2019-06-13 11:50:32 +01:00 Authoring application: mPDF 5.7
MD5: 9cfee9a7588178cd83d49f47f22209b5 SHA-1: 2971a2e816e5b3804131afd3477fc608b066c2ce SHA-256: 2143fe068b5d40c624af9309891bcd251ce353fcfc96ab636b582e8101ddbadb
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to direct users to 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 0.9798

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/7731733731738/Lovely-Blues-Bluesday-Book-II-by-Adrienne-Thompson.pdf
    • http://cefasfese.4pu.com/4733739730738/Been-So-Long-by-Adrienne-Thompson.pdf
    • http://cefasfese.4pu.com/8732739739735/Rapture-by-Adrienne-Thompson.pdf
    • http://cefasfese.4pu.com/6732730733731/Church-Leavers-Faith-Journeys-Five-Years-On-by-Adrienne-Thompson.pdf
    • http://cefasfese.4pu.com/3733734730736734/The-Children-Of-Lovely-Lane-Lovely-Lane-2-by-Nadine-Dorries.pdf
    • http://cefasfese.4pu.com/2732735732733733/Book-of-Blues-by-Jack-Kerouac.pdf
    • http://cefasfese.4pu.com/3732738733730739/Christine-Pullein-Thompson-s-Book-of-Pony-Stories-by-Christine-Pullein-Thompson.pdf
    • http://cefasfese.4pu.com/7733736731731/Outlaw-Blues-A-Book-of-Rock-Music-by-Paul-Williams.pdf
    • http://cefasfese.4pu.com/6739734734733733/Bus-Bait-Blues-Australis-Incognito-Book-1-by-Brad-Mengel.pdf
    • http://cefasfese.4pu.com/1730734735732734736/A-Cat-with-the-Blues-Alice-Nestleton-Mystery-Book-18-by-Lydia-Adamson.pdf
    • http://cefasfese.4pu.com/1731730734736/Wicked-Lovely-Wicked-Lovely-1-by-Melissa-Marr.pdf
    • http://cefasfese.4pu.com/2737732735739739/Wicked-Lovely-Wicked-Lovely-1-by-Melissa-Marr.pdf
    • http://cefasfese.4pu.com/6732731738731731/Blues-Highway-Blues-by-Eyre-Price.pdf
    • http://cefasfese.4pu.com/2736733739736738/The-Royal-Book-of-Oz-Oz-15-by-Ruth-Plumly-Thompson.pdf
    • http://cefasfese.4pu.com/5732731737733738/Getting-Out-of-Town-by-Book-amp-Bike-by-Kent-Thompson.pdf
    • http://cefasfese.4pu.com/3732737734731730/The-Second-Book-of-Pony-Stories-by-Christine-Pullein-Thompson.pdf
    • http://cefasfese.4pu.com/2739731732736736/Not-Another-Superhero-The-Another-Series-Book-1-by-Tara-Lynn-Thompson.pdf
    • http://cefasfese.4pu.com/3735737731736734/Covalent-Bonds-Red-Moon-Anthologies-Book-3-by-Trysh-Thompson.pdf
    • http://cefasfese.4pu.com/1731736735735734/The-Crimson-Sword-Book-One-of-the-Legend-of-Asahiel-by-Eldon-Thompson.pdf
    • http://cefasfese.4pu.com/3735734739737737/Undercover-Blues-Undercover-Blues-1-by-Laney-Cairo.pdf
    • http://cefasfese.4pu.com/6732731738731731/Blues-High

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