Malicious PDF — malware analysis report

Static analysis result for SHA-256 0876489642dfecbc…

MALICIOUS

PDF

15.7 KB Created: 2019-05-01 08:09:20 +01:00 Authoring application: mPDF 5.7
MD5: 814d26c6598a3852a5e5673cca0fde1e SHA-1: a45e4ce5b34629de3c855117e06667e1b9bb0036 SHA-256: 0876489642dfecbcd718c3057b5e4e10ce367a3f3c85f8bcea0e9b72c3e5c008
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/7730739739736730/Novels-by-Maryjanice-Davidson-Undead-and-Unappreciated-Derik-s-Bane-Undead-and-Unreturnable-Undead-and-Unwed-Swimming-Without-a-Net-by-Books-LLC.pdf
    • http://cefasfese.4pu.com/4739739738738739/Undead-and-Unappreciated-Undead-3-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/1733736731736730/Undead-and-Unstable-Undead-11-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/4735730737737739/Undead-and-Unreturnable-Undead-4-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/4736737731739/Undead-and-Unpopular-Undead-5-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/3739735736738736/Undead-and-Unwelcome-Undead-8-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/2736736731738737/Undead-and-Underwater-Undead-11-5-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/7730739739732735/A-Honeymoon-Story-Undead-6-5-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/8738737737735736/Happy-Hour-in-der-Unterwelt-Undead-3-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/1738731737736734/Betsy-the-Vampire-Queen-Undead-1-4-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/1737732734739738/Dead-and-Loving-It-Wyndham-Werewolf-5-Undead-4-5-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/1735735736736734/The-Undead-Part-1-The-Undead-Series-Days-1-3-by-R-R-Haywood.pdf
    • http://cefasfese.4pu.com/2737730731738735/Live-Undead-The-Undead-Chronicles-1-by-Steve-Warren.pdf
    • http://cefasfese.4pu.com/1731732738730734733/Death-to-the-Undead-Life-After-the-Undead-2-by-Pembroke-Sinclair.pdf
    • http://cefasfese.4pu.com/1733735730733737/The-Undead-Situation-Undead-1-by-Eloise-J-Knapp.pdf
    • http://cefasfese.4pu.com/1731732738730733733/The-Undead-Haze-Undead-2-by-Eloise-J-Knapp.pdf
    • http://cefasfese.4pu.com/2737738739735734/Undead-Undead-1-by-Kirsty-McKay.pdf
    • http://cefasfese.4pu.com/1731732738730734734/Legion-of-the-Undead-Legion-of-the-Undead-1-by-Michael-Whitehead.pdf
    • http://cefasfese.4pu.com/7730739739731731/Dying-for-You-by-MaryJanice-Davidson.pdf
    • http://cefasfese.4pu.com/7730739739735738/The-Fixer-Upper-by-MaryJanice-Davidson.pdf

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