Malicious PDF — malware analysis report

Static analysis result for SHA-256 093f6785b5ac0ad7…

MALICIOUS

PDF

16.6 KB Created: 2019-05-03 08:08:35 +01:00 Authoring application: mPDF 5.7
MD5: a4b8aa3574477aa66126db901fa9a4e6 SHA-1: 50c7944af9cfdc77d1aab97f0252f8cc8eb018a3 SHA-256: 093f6785b5ac0ad7efcc86095533fcbf3b3440b47b9312aff17474a786f20704
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 ML classifier also flagged this PDF as malicious. The primary attack pattern observed is the distribution of these numerous external links, likely to drive traffic or host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9810

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/8730739737737739/The-New-Gods-1971-1978-19-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8730739737737731/The-New-Gods-1971-1978-13-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8730739736738733/The-New-Gods-1971-1978-14-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8730739736735734/The-New-Gods-1971-1978-18-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8730739737738738/DC-Comics-Presents-1978-1986-33-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8737738734734734/Ms-Marvel-1977-1979-1-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/1737736733734736/Essential-Werewolf-by-Night-Vol-1-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8730739736737733/Justice-League-of-America-1960-1987-180-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8730739737737738/Justice-League-of-America-1960-1987-188-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/8734734734735737/Cinder-and-Ashe-2-Cinder-and-Ashe-2-by-Gerry-Conway.pdf
    • http://cefasfese.4pu.com/7732735739735736/Legal-Aspects-of-Economic-Integration-Les-Aspects-Juridiques-de-l-Int-gration-conomique-Workshop-1971-Colloque-1971-by-Jo-l-Rideau.pdf
    • http://cefasfese.4pu.com/5733734737739737/Old-House-Journal-1978-Yearbook-A-One-Volume-Compilation-of-All-the-Editorial-Pages-Printed-in-the-Old-House-Journal-in-1978-by-Old-House-Journal-Editors.pdf
    • http://cefasfese.4pu.com/8736739733737731/Land-of-Gods-Die-Kinder-vom-Olymp-Gods-Reihe-2-by-Alia-Cruz.pdf
    • http://cefasfese.4pu.com/8735737732736/The-Book-of-the-Gods-600-Gods-from-20-Pantheons-Explained-by-Chas-Saunders.pdf
    • http://cefasfese.4pu.com/2739730734738736/Gods-of-Fire-and-Thunder-Book-of-the-Gods-5-by-Fred-Saberhagen.pdf
    • http://cefasfese.4pu.com/2739735738737734/Heart-of-the-Gods-Servant-of-the-Gods-2-by-Valerie-Douglas.pdf
    • http://cefasfese.4pu.com/2735737738734731/Gods-Dreams-of-Fire-and-Gods-3-by-James-Erich.pdf
    • http://cefasfese.4pu.com/8731733732/Filthy-Gods-American-Gods-0-5-by-R-Scarlett.pdf
    • http://cefasfese.4pu.com/1731730733734/Oh-My-Gods-Oh-My-Gods-1-by-Tera-Lynn-Childs.pdf
    • http://cefasfese.4pu.com/3730734732731736/Oh-My-Gods-Oh-My-Gods-1-by-Tera-Lynn-Childs.pdf

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