Malicious PDF — malware analysis report

Static analysis result for SHA-256 034ac2fea4279d7f…

MALICIOUS

PDF

16.2 KB Created: 2019-11-07 16:28:03 +00:00 Authoring application: mPDF 5.7
MD5: d6cde35f558f1f99af1432a2c7949703 SHA-1: a437981de2a1216c1867a4fe413c12583457804f SHA-256: 034ac2fea4279d7f7a373dc9d73489c00470dbb539f853eb0f3ed1e4df362f46
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the 'PDF_SEO_LINK_FARM' heuristic, pointing to various book-related PDFs. The ML classifier also flagged this PDF as malicious. The embedded URLs likely serve to manipulate search engine results or redirect users to potentially malicious content, although the specific URLs extracted were labeled as confirmed benign.

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/1730737739730739737/Fifty-Shades-Trilogy-Fifty-Shades-of-Grey-Fifty-Shades-Darker-Fifty-Shades-Freed-3-volume-a-review-by-Nick-Walton.pdf
    • http://cefasfese.4pu.com/7733732730732733/Fifty-Shades-Darker-Book-2-of-the-Fifty-Shades-trilogy-by-E-L-James.pdf
    • http://cefasfese.4pu.com/7733732730732736/Fifty-Shades-Freed-Book-Three-of-the-Fifty-Shades-Trilogy-by-E-L-James.pdf
    • http://cefasfese.4pu.com/9736730734/Fifty-Shades-Freed-Fifty-Shades-3-by-E-L-James.pdf
    • http://cefasfese.4pu.com/3739734739730732/Fifty-Shades-Darker-Fifty-Shades-2-by-E-L-James.pdf
    • http://cefasfese.4pu.com/3732733736739/Fifty-Shades-Darker-Fifty-Shades-2-by-E-L-James.pdf
    • http://cefasfese.4pu.com/1738735736735736/Fifty-Shades-Darker-Fifty-Shades-2-by-E-L-James.pdf
    • http://cefasfese.4pu.com/1730736739739736732/Fifty-Years-of-Gray-Fifty-Shades-of-Grey-A-Parody-Short-by-Alanna-Heck.pdf
    • http://cefasfese.4pu.com/1730737739731731738/Shades-of-Control-Fifty-by-Fifty-by-Michelle-Fox.pdf
    • http://cefasfese.4pu.com/4738738737734735/The-Fifty-Shades-Trilogy-amp-Grey-by-E-L-James.pdf
    • http://cefasfese.4pu.com/7730732732730733/FIFTY-SHADES-OF-IKEA-by-Robin-Segal.pdf
    • http://cefasfese.4pu.com/5737734737735734/Fifty-Shades-of-BDSM-Trilogy-by-Sky-Corgan.pdf
    • http://cefasfese.4pu.com/5734734730730736/Fifty-Shades-of-Gatsby-by-Lillian-Jacobs.pdf
    • http://cefasfese.4pu.com/7732738738736736/Fifty-Shades-Darker---Greek-Edition-by-E-L-James.pdf
    • http://cefasfese.4pu.com/8736738736731732/Fifty-Shades-of-Grey-Gef-hrliche-Liebe-by-E-L-James.pdf
    • http://cefasfese.4pu.com/2736732739733733/Fifty-Shades-of-Talmud-What-the-First-Rabbis-Had-to-Say-about-You-Know-What-by-Maggie-Anton.pdf
    • http://cefasfese.4pu.com/3730736732737732/Fifty-Shades-of-Chicken-A-Parody-in-a-Cookbook-by-F-L-Fowler.pdf
    • http://cefasfese.4pu.com/1730735735732735736/Satutettu-Fifty-Shades-of-Grey-Christianin-kertomana-2-by-E-L-James.pdf
    • http://cefasfese.4pu.com/3736735735732735/Fifty-Seven-Shades-of-Shit-Rude-Awakening-by-Alex-Cook.pdf
    • http://cefasfese.4pu.com/6737736734731733/Fifty-Shades-of-Dorian-Gray-by-Nicole-Audrey-Spector.pdf

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