Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e802cbedf5138db…

MALICIOUS

PDF

16.4 KB Created: 2019-04-27 07:46:14 +01:00 Authoring application: mPDF 5.7
MD5: aa412613e42143e8cc2a6299312aea29 SHA-1: f3b4d0ad544c1777a9379054ede2b447b9dc2cc8 SHA-256: 3e802cbedf5138dbd8a2ef3062ae7545ee33b2c49260e88d968e9682d1236c3f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files hosted on the domain 'cefasfese.4pu.com'. This pattern is indicative of SEO poisoning or a link farm designed to drive traffic to potentially malicious or unwanted content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

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/2738736739730733/Shelton-in-Love-Shelton-1-by-Dianne-Hartsock.pdf
    • http://cefasfese.4pu.com/7737730735736734/Angela-Gheorghiu-My-Passionate-Gypsy-Mezzo-Soprano-A-Romanian-Version-Of-Carmen-Angela-Gheorghiu-s-Lover-Book-3-by-Gianni-Truvianni.pdf
    • http://cefasfese.4pu.com/8735734738738734/Personal-Excellence-by-Ken-Shelton.pdf
    • http://cefasfese.4pu.com/1730738730736734/The-Mentor-by-Ryan-M-Shelton.pdf
    • http://cefasfese.4pu.com/7737730737731733/Versos-Internacionais-Di-Angela-Gheorghiu-Uma-Cole-o-De-Poemas-dedicados-a-Angela-Gheorghiu-Portugu-s-Franc-s-Ingl-s-Espanhol-e-Italiano-by-Gianni-Truvianni.pdf
    • http://cefasfese.4pu.com/3731737737736739/Fat-Freddy-s-Cat-Omnibus-by-Gilbert-Shelton.pdf
    • http://cefasfese.4pu.com/1731733739735734/Hoggle-s-Christmas-by-Rick-Shelton.pdf
    • http://cefasfese.4pu.com/4737736738736730/Risk-of-a-Lifetime-by-Claudia-Shelton.pdf
    • http://cefasfese.4pu.com/4736730735736738/A-Boy-and-A-Bear-in-a-Boat-by-Dave-Shelton.pdf
    • http://cefasfese.4pu.com/2739733734731734/Sold-into-Marriage-by-Maxi-Shelton.pdf
    • http://cefasfese.4pu.com/4735738738737732/What-Comes-After-Crazy-by-Sandi-Kahn-Shelton.pdf
    • http://cefasfese.4pu.com/4732731733738738/The-Book-Case-by-Dave-Shelton.pdf
    • http://cefasfese.4pu.com/1731732738734731738/Living-the-Dream-by-Maxi-Shelton.pdf
    • http://cefasfese.4pu.com/6732739735730733/Vaccine-and-Serum-Evils-by-Herbert-M-Shelton.pdf
    • http://cefasfese.4pu.com/4739738733737734/The-Face-of-Folk-Music-by-Robert-Shelton.pdf
    • http://cefasfese.4pu.com/2734731737737733/Collected-Fat-Freddy-s-Cat-Vols-1-and-2-by-Gilbert-Shelton.pdf
    • http://cefasfese.4pu.com/1732739737733730/The-Myth-Of-The-American-Superhero-by-John-Shelton-Lawrence.pdf
    • http://cefasfese.4pu.com/7738737738738733/Kissing-Games-of-the-World-by-Sandi-Kahn-Shelton.pdf
    • http://cefasfese.4pu.com/4736738737733731/The-fabulous-furry-Freak-Brothers---Collection-Two-by-Gilbert-Shelton.pdf
    • http://cefasfese.4pu.com/3734731738739733/Fruit-of-All-Evil-A-Farmers-Market-Mystery-2-by-Paige-Shelton.pdf
    • http://cefasfese.4pu.com/4736730735736738/A-Boy-and-A-Bear-in-a-Boat-by-D

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