Malicious PDF — malware analysis report

Static analysis result for SHA-256 037b941aa8f65c1b…

MALICIOUS

PDF

18.0 KB Created: 2019-05-02 05:10:28 +01:00 Authoring application: mPDF 5.7
MD5: bfa79608fa58feee5f99d53323c2c38f SHA-1: c01215d65e8fe58c363875ec441f83335f8204d9 SHA-256: 037b941aa8f65c1b9edd00c64c4bfcf5568e5d007b97fc5f8026d41f51afaae5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, masquerading as book titles, which is indicative of a link farm designed to drive traffic. The ML classifier also flagged this PDF as malicious. While the URLs themselves are marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/8732734738731736/In-My-Heart-A-Book-of-Feelings-by-Jo-Witek.pdf
    • http://cefasfese.4pu.com/1730739735735736736/Children-books-The-Book-of-Feelings-Friendship-Values-book-Adventure-amp-Education-Kids-books-Emotions-Feelings-Growing-up-amp-facts-of-life-Social-skills-for-kids-collection-by-Lilach-Yitzhaki.pdf
    • http://cefasfese.4pu.com/8732735730739736/My-Tree-and-Me-A-Book-of-Seasons-by-Jo-Witek.pdf
    • http://cefasfese.4pu.com/8732734738731737/Hello-in-There-A-Big-Sister-s-Book-of-Waiting-by-Jo-Witek.pdf
    • http://cefasfese.4pu.com/8732735730739738/With-My-Daddy-A-Book-of-Love-and-Family-by-Jo-Witek.pdf
    • http://cefasfese.4pu.com/8732734739733734/Top-Secret-Santa-Guardians-of-Freedom-Book-3-by-Barbara-Witek.pdf
    • http://cefasfese.4pu.com/4738731731733735/Rainy-Day-A-Smurf-Book-of-Feelings-by-Peyo.pdf
    • http://cefasfese.4pu.com/9737735733732731/Theo-s-Mood-A-Book-of-Feelings-by-Maryann-Cocca-Leffler.pdf
    • http://cefasfese.4pu.com/1734732737730739/The-Feelings-Book-The-Care-amp-Keeping-of-Your-Emotions-by-Lynda-Madison.pdf
    • http://cefasfese.4pu.com/1731733734730737736/Daily-Inspiration-From-Kathy-Henn-Positive-Feelings-Series-Book-8-by-Kathy-Henn.pdf
    • http://cefasfese.4pu.com/1731733733738734732/Daily-Inspiration-From-Kathy-Henn-Positive-Feelings-Book-4-by-Kathy-Henn.pdf
    • http://cefasfese.4pu.com/8732735730731732/On-Gavdos-Ferry-by-Terri-Witek.pdf
    • http://cefasfese.4pu.com/8732734738732736/Comic-Books-as-History-by-Joseph-Witek.pdf
    • http://cefasfese.4pu.com/1731733737735732732/Black-Heart-Primary-Urges-Black-Heart-Series-Book-5-by-T-W-Gallier.pdf
    • http://cefasfese.4pu.com/2739736737739730/Santa-Wore-Combat-Boots-by-Barbara-Witek.pdf
    • http://cefasfese.4pu.com/7732739735736731/Ugly-Feelings-by-Sianne-Ngai.pdf
    • http://cefasfese.4pu.com/2733732732730/The-Era-of-Good-Feelings-by-George-Dangerfield.pdf
    • http://cefasfese.4pu.com/1735738732738/Elegiac-Feelings-American-by-Gregory-Corso.pdf
    • http://cefasfese.4pu.com/2738734734730734/Desire-Dangerous-Feelings-by-Maki-Kazumi.pdf
    • http://cefasfese.4pu.com/8732735732734733/Controversial-Ideas-In-China-And-In-Europe-A-Biography-Of-Jean-Fran-ois-Foucquet-S-J-1665-1741-by-John-W-Witek.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.