Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca7cfe5e30b92700…

MALICIOUS

PDF

16.7 KB Created: 2019-06-04 09:43:06 +01:00 Authoring application: mPDF 5.7
MD5: 03a3628b24e67b39c6369c6cf7b59983 SHA-1: 1e1767c14045abedfc79cb7ec16662383dd33dc0 SHA-256: ca7cfe5e30b92700109b7ed6d09a08629744f18fda499aeec1fa8516ecb4c5ca
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, all hosted on the domain 'cefasfese.4pu.com'. This behavior is indicative of a link farm or a redirection scheme designed to lead users to potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9810

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/1730734739735737734/Death-in-an-English-Cottage-Murder-on-Location-2-by-Sara-Rosett.pdf
    • http://cefasfese.4pu.com/3737735732732731/Moving-is-Murder-A-Mom-Zone-Mystery-1-by-Sara-Rosett.pdf
    • http://cefasfese.4pu.com/7737733734735734/English-Cottage-Gardens-by-Ethne-Clarke.pdf
    • http://cefasfese.4pu.com/6736734738737738/English-Cottage-Gardens-by-Edward-Hyams.pdf
    • http://cefasfese.4pu.com/9732739738731735/Murder-at-the-Old-Cottage-by-David-Pearson.pdf
    • http://cefasfese.4pu.com/1730734739735736734/Return-to-Rose-Cottage-The-Laws-of-Attraction-For-the-Love-of-Pete-Rose-Cottage-Sisters-3-4-by-Sherryl-Woods.pdf
    • http://cefasfese.4pu.com/1730734739735736738/Home-at-Rose-Cottage-Three-Down-the-Aisle-What-s-Cooking-Rose-Cottage-Sisters-1-2-by-Sherryl-Woods.pdf
    • http://cefasfese.4pu.com/3737735734736733/Murder-in-C-Major-Joan-Spencer-1-by-Sara-Hoskinson-Frommer.pdf
    • http://cefasfese.4pu.com/5739737730735731/An-English-Murder-by-Cyril-Hare.pdf
    • http://cefasfese.4pu.com/1739734733738735/Decline-of-the-English-Murder-by-George-Orwell.pdf
    • http://cefasfese.4pu.com/1736738731739/The-Savage-City-Race-Murder-and-a-Generation-on-the-Edge-by-T-J-English.pdf
    • http://cefasfese.4pu.com/4735737732730737/Doctor-Who-The-English-Way-of-Death-by-Gareth-Roberts.pdf
    • http://cefasfese.4pu.com/4737736733731737/Escape-to-Mulberry-Cottage-Mulberry-Cottage-1-by-Victoria-Connelly.pdf
    • http://cefasfese.4pu.com/3730730738739731/Death-of-a-Pirate-King-The-Adrien-English-Mysteries-4-by-Josh-Lanyon.pdf
    • http://cefasfese.4pu.com/2739738739735732/Death-of-a-Pirate-King-The-Adrien-English-Mysteries-4-by-Josh-Lanyon.pdf
    • http://cefasfese.4pu.com/9738737731737730/Surrender-Invites-Death-Fighting-the-Waffen-SS-in-Normandy-by-John-A-English.pdf
    • http://cefasfese.4pu.com/1733731733736734/Death-of-a-Pirate-King-The-Adrien-English-Mysteries-4-by-Josh-Lanyon.pdf
    • http://cefasfese.4pu.com/2735737736739733/Demons-Death-amp-Murder-by-Stephen-Young.pdf
    • http://cefasfese.4pu.com/2736739731730/Honeymoon-With-Murder-Death-on-Demand-4-by-Carolyn-G-Hart.pdf
    • http://cefasfese.4pu.com/2737732734732/A-Little-Class-on-Murder-Death-on-Demand-5-by-Carolyn-G-Hart.pdf
    • http://cefasfese.4pu.com/1739734733738735/Decline-of-the-English-Murder-by-Ge

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