Malicious PDF — malware analysis report

Static analysis result for SHA-256 731521855df31959…

MALICIOUS

PDF

16.8 KB Created: 2019-04-30 07:46:41 +01:00 Authoring application: mPDF 5.7
MD5: 7c9e92db29948ab0b300e8d653746bfc SHA-1: 7fd12906b37475a0ec898374270660a4d9258099 SHA-256: 731521855df31959eb4fd0768eaf9bf043acddf7e37a705b66c24eb183558eed
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. The heuristic PDF_SEO_LINK_FARM indicates that these links are likely intended to direct users to external content, potentially for SEO manipulation or to host malicious payloads. While the URLs themselves are currently marked as benign, the sheer volume and structure 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/1731738731733733737/Amazon-Echo-Amazon-Echo-Advanced-User-Guide-2016-Updated-Echo-Amazon-Echo-User-Manual-Amazon-Alexa-Amazon-Echo-Dot-Amazon-Echo-ebook-by-Jamy-Jackson.pdf
    • http://cefasfese.4pu.com/2730730739736733/When-an-Echo-Returns-Echo-Branson-2-by-Linda-Kay-Silva.pdf
    • http://cefasfese.4pu.com/3739731736735735/Echo-in-Time-Echo-Trilogy-1-by-Lindsey-Fairleigh.pdf
    • http://cefasfese.4pu.com/1730738739737734/Echo-Among-Stars-Echo-1-by-JoAnna-S-Morris.pdf
    • http://cefasfese.4pu.com/9732730730737733/Echo-Desert-Run-Echo-3-by-Terry-Moore.pdf
    • http://cefasfese.4pu.com/4732735736737738/The-God-Wave-The-God-Wave-Trilogy-1-by-Patrick-Hemstreet.pdf
    • http://cefasfese.4pu.com/5735732732733/The-5th-Wave-The-5th-Wave-1-by-Rick-Yancey.pdf
    • http://cefasfese.4pu.com/2734731735739736/The-5th-Wave-The-5th-Wave-1-by-Rick-Yancey.pdf
    • http://cefasfese.4pu.com/1731732739735731/The-5th-Wave-The-5th-Wave-1-by-Rick-Yancey.pdf
    • http://cefasfese.4pu.com/7731735734735737/The-5th-Wave-The-5th-Wave-1-by-Rick-Yancey.pdf
    • http://cefasfese.4pu.com/1731730739738730735/The-River-Singers-by-Tom-Moorhouse.pdf
    • http://cefasfese.4pu.com/8734735732737735/R-amp-B-Groups-amp-Singers-Biographies-Vol-1-by-R-B-Grimm.pdf
    • http://cefasfese.4pu.com/1730734735736739738/GOSPEL-SINGERS-and-THEIR-SONGS-by-F-D-Hemenway.pdf
    • http://cefasfese.4pu.com/5733739731732734/The-Singers-of-Time-by-Frederik-Pohl.pdf
    • http://cefasfese.4pu.com/2738732739736739/The-Witches-of-Echo-Park-The-Witches-of-Echo-Park-1-by-Amber-Benson.pdf
    • http://cefasfese.4pu.com/6730737731738737/50-Best-Ever-Audience-Baiting-Quips-For-Singers-And-Comperes-by-Mike-Francis.pdf
    • http://cefasfese.4pu.com/8739731733738730/Patsy-Cline---Original-Keys-for-Singers-by-Hal-Leonard-Publishing-Company.pdf
    • http://cefasfese.4pu.com/1731733734738732731/Singers-Edition-Operatic-Arias-Soubrette-Spielsopran-by-Richard-Boldrey.pdf
    • http://cefasfese.4pu.com/9734730739739/A-Band-of-Angels-A-Story-Inspired-by-the-Jubilee-Singers-by-Deborah-Hopkinson.pdf
    • http://cefasfese.4pu.com/6737738737734738/A-Night-at-the-Opera-An-Irreverent-Guide-to-The-Plots-The-Singers-The-Composers-The-Recordings-by-Denis-Forman.pdf

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