Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be6631a825040ec…

MALICIOUS

PDF

14.0 KB Created: 2019-11-28 22:36:52 +00:00 Authoring application: mPDF 5.7
MD5: b8e4100be0122f494f693ece122e98a4 SHA-1: 1558bc1eb53b5aebb5c9f253c92f5b4f0eb119c2 SHA-256: 3be6631a825040ec9783b9b237f15feed33e4e0ebd2eea64ab0508df092cfd35
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, all hosted on the same domain. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

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/1730736739739738737/Crewel-Chapters-1-5-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/3739731734738/Crewel-Crewel-World-1-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/1737733738734737/Unraveled-Crewel-World-3-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/1739738733739731/Altered-Crewel-World-2-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/1730736739739738732/The-Cypress-Project-Crewel-World-0-1-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/1730736739739738739/Heat-Up-The-Fall-New-Adult-Boxed-Set-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/9737733735737734/Reaching-Gavin-Good-Girls-Don-t-3-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/1730736739739738734/Dirty-Boys-of-Summer-Alphas-Billionaires-Bikers-and-Jocks-by-Gennifer-Albin.pdf
    • http://cefasfese.4pu.com/1730737730732738739/Ms-Albin-Rides-the-Bus-by-Kelli-Albin.pdf
    • http://cefasfese.4pu.com/1730737730732732737/The-Fiction-of-J-Albin-Larson-by-J-Albin-Larson.pdf
    • http://cefasfese.4pu.com/1731737738738730735/Pleasures-of-Crewel-by-J-Springer.pdf
    • http://cefasfese.4pu.com/1731737738737734733/A-Z-of-Crewel-Embroidery-by-Sue-Gardner.pdf
    • http://cefasfese.4pu.com/1731737738738730737/Creative-Crewel-by-Betty-Alfers.pdf
    • http://cefasfese.4pu.com/1731737738737731731/Crewel-and-Unusual-by-Molly-MacRae.pdf
    • http://cefasfese.4pu.com/1731737738738736733/A-Z-of-Crewel-Embroidery-by-Country-Bumpkin.pdf
    • http://cefasfese.4pu.com/1731736735732734736/Get-the-Guy-by-Gennifer-Kolt.pdf
    • http://cefasfese.4pu.com/9737739736732737/Der-halbe-Mensch-by-Albin-Zollinger.pdf
    • http://cefasfese.4pu.com/1730737730731735732/Albin-Roussin-by-Jesse-Russell.pdf
    • http://cefasfese.4pu.com/1731737738737734734/Crewel-Embroidery-in-England-by-Joan-Edwards.pdf
    • http://cefasfese.4pu.com/1731737738737734736/An-Introduction-to-Crewel-Embroidery-by-Mave-Glenny.pdf
    • http://cefasfese.4pu.com/173173773

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