Malicious PDF — malware analysis report

Static analysis result for SHA-256 6027edd87fc4cc99…

MALICIOUS

PDF

19.5 KB Created: 2019-05-02 05:58:25 +01:00 Authoring application: mPDF 5.7
MD5: e64b79467abff8f804d7aaa51ec79487 SHA-1: f0ebade3a55b2f0fa80e8c7c886dc471ddaa9f15 SHA-256: 6027edd87fc4cc99e1c9e4bdff855ba13f285250890fe8fb129d7a8dfd1a86c7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, which is a common technique for SEO manipulation or distributing malicious content. While the specific intent is unclear due to the lack of readable document body text, the presence of numerous external links suggests a malicious attempt to redirect users or host malicious files. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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/1735735738735/All-the-President-s-Men-by-Carl-Bernstein.pdf
    • http://cefasfese.4pu.com/3737739735739733/All-the-President-s-Men-by-Carl-Bernstein.pdf
    • http://cefasfese.4pu.com/1730739737737731737/Dr-Bernstein-s-Diabetes-Solution-The-Complete-Guide-to-Achieving-Normal-Blood-Sugars-by-Richard-K-Bernstein.pdf
    • http://cefasfese.4pu.com/5730733730736736/Peter-L-Bernstein-Classics-Capital-Ideas-Against-the-Gods-The-Power-of-Gold-by-Peter-L-Bernstein.pdf
    • http://cefasfese.4pu.com/6736735730732739/The-First-President-A-Life-of-John-L-Dube-Founding-President-of-the-ANC-by-Heather-Hughes.pdf
    • http://cefasfese.4pu.com/1730738737738735731/Dutch-and-Gina-The-President-s-Girlfriend-The-President-s-Girlfriend-1-by-Mallory-Monroe.pdf
    • http://cefasfese.4pu.com/4737735739735730/The-Leonard-Bernstein-Letters-by-Leonard-Bernstein.pdf
    • http://cefasfese.4pu.com/8730730730739731/Gesammelte-Werke-Carl-Spittelers-by-Carl-Spitteler.pdf
    • http://cefasfese.4pu.com/8730730731734739/Conrad-der-Leutnant-Vollst-ndige-Ausgabe-Biografischer-Roman-des-Literatur-Nobelpreistr-gers-Carl-Spitteler-by-Carl-Spitteler.pdf
    • http://cefasfese.4pu.com/1731736734737735731/Carl-Sternheim-B-hnenwerke-Erz-hlungen-amp-Romane-30-Titel-in-einem-Band-by-Carl-Sternheim.pdf
    • http://cefasfese.4pu.com/7739735737735737/Narrative-of-Johann-Carl-Buettner-In-the-American-Revolution-by-Johann-Carl-Buttner.pdf
    • http://cefasfese.4pu.com/8734736735732732/Uncle-Scrooge-The-Seven-Cities-of-Gold-The-Carl-Barks-Library-14-by-Carl-Barks.pdf
    • http://cefasfese.4pu.com/2734732730739734/Donald-Duck-The-Old-Castle-s-Secret-The-Carl-Barks-Library-6-by-Carl-Barks.pdf
    • http://cefasfese.4pu.com/1731735736733734739/Lulu-by-Samuel-Bernstein.pdf
    • http://cefasfese.4pu.com/1735738731733734/Flashblind-by-Paul-Bernstein.pdf
    • http://cefasfese.4pu.com/4738732737733730/The-Tree-Man-by-David-Bernstein.pdf
    • http://cefasfese.4pu.com/1730739737738736739/The-Founding-Fathers-Reconsidered-by-R-B-Bernstein.pdf
    • http://cefasfese.4pu.com/9733737733732738/Thurber-A-Biography-by-Burton-Bernstein.pdf
    • http://cefasfese.4pu.com/1730739737737735733/Bernstein-A-Biography-by-Joan-Peyser.pdf
    • http://cefasfese.4pu.com/1738732732732730/Tears-of-No-Return-by-David-Bernstein.pdf

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