Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e8d8cba3db0b68e…

MALICIOUS

PDF

16.3 KB Created: 2019-10-31 23:52:26 +00:00 Authoring application: mPDF 5.7
MD5: c8e4da3328a3b88a2d7120a72eb8d32d SHA-1: d6855a92c5e746bc8afa3052b577b8a9dc90d935 SHA-256: 3e8d8cba3db0b68e9f61301e839cd8eb339616aa47fbc5158f073fbb78b21a68
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a large number of embedded external links, indicating a potential SEO poisoning or redirection attack. The primary heuristic identified a link farm with 22 external PDF links, many of which appear to be book titles. While the URLs themselves are currently marked as benign, the sheer volume and nature of the links suggest a malicious intent to drive traffic or potentially host further malicious content. No scripts were extracted from this sample.

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/5739739737736731/Healing-Power-for-Beginners-Heal-Your-Body-Heal-Your-Life-by-Joanne-Brocas.pdf
    • http://cefasfese.4pu.com/9738735733730734/The-House-of-Mirth-by-Edith-Wharton---Delphi-Classics-Illustrated-Delphi-Parts-Edition-Edith-Wharton-by-Edith-Wharton.pdf
    • http://cefasfese.4pu.com/5736730736733734/The-Collected-Poems-of-Siegfried-Sassoon-by-Siegfried-Sassoon.pdf
    • http://cefasfese.4pu.com/8736738732735735/-quot-Ich-will-leben-quot---Briefe-und-Dokumente-der-Wiener-J-din-Edith-Hahn-Beer-Arbeitslager-und-U-boot-in-Nazi-Deutschland-by-Edith-Hahn-Beer.pdf
    • http://cefasfese.4pu.com/2738738732732731/The-Ghost-Stories-of-Edith-Wharton-by-Edith-Wharton.pdf
    • http://cefasfese.4pu.com/7735730736735734/The-Age-of-Innocence-By-Edith-Wharton-Illustrated-by-Edith-Wharton.pdf
    • http://cefasfese.4pu.com/4731731731733732/The-Portable-Edith-Wharton-by-Edith-Wharton.pdf
    • http://cefasfese.4pu.com/4735739734736731/The-War-Poems-by-Siegfried-Sassoon.pdf
    • http://cefasfese.4pu.com/4730733733736734/A-Time-to-Heal-by-M-A-Comley.pdf
    • http://cefasfese.4pu.com/1731737734737736733/Das-Mechanische-Musikkabinett-by-Siegfried-Wendel.pdf
    • http://cefasfese.4pu.com/5735733731732736/The-Psychology-of-the-Infant-by-Bernfeld-Siegfried.pdf
    • http://cefasfese.4pu.com/5736730737732733/Biology-for-Dummies-by-Donna-Rae-Siegfried.pdf
    • http://cefasfese.4pu.com/1732738731737732/She-Should-Have-Called-Him-Siegfried-by-Regina-Glei.pdf
    • http://cefasfese.4pu.com/2731735738731732/Sherston-s-Progress-by-Siegfried-Sassoon.pdf
    • http://cefasfese.4pu.com/5735732739736734/The-PSYCHOLOGY-OF-THE-INFANT-by-Siegfried-Bernfeld.pdf
    • http://cefasfese.4pu.com/1731737733732739737/Zielsicher-abnehmen-by-Siegfried-M-ller.pdf
    • http://cefasfese.4pu.com/2730730737734738/Scars-Do-Heal-by-Shilpa-Menon.pdf
    • http://cefasfese.4pu.com/3739735734736731/To-Love-and-Heal-by-Tamra-Rose.pdf
    • http://cefasfese.4pu.com/4736737737737737/Heal-My-Heart-by-Candice-Terry.pdf
    • http://cefasfese.4pu.com/1734734736733734/Let-Me-Heal-Your-Heart-Let-Me-4-by-Lily-Foster.pdf

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