Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89f6bf638cd3bd3…

MALICIOUS

PDF

19.8 KB Created: 2019-05-07 09:38:52 +01:00 Authoring application: mPDF 5.7
MD5: 5675f5c6bc0e94d22e104d66d2506582 SHA-1: 754208a24cc647876f8f960fee0cf64f53e0650c SHA-256: e89f6bf638cd3bd3c549e6fc2141b0603eb87f0d801b6a97c694d645c162e99d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the sheer volume of links and the heuristic firing indicate a malicious intent, likely to redirect users to malicious sites or to manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://muicuiu.dumb1.com/7a03a06a02a05a05/The-Revenge-of-Conscience-Politics-and-the-Fall-of-Man-by-J-Budziszewski.pdf
    • http://muicuiu.dumb1.com/2a08a02a01a08a05/Denial-of-Conscience-Conscience-1-by-Cat-Gardiner.pdf
    • http://muicuiu.dumb1.com/6a08a02a09a08/I-Am-Number-Four-Collection-Books-1-6-I-Am-Number-Four-The-Power-of-Six-The-Rise-of-Nine-The-Fall-of-Five-The-Revenge-of-Seven-The-Fate-of-Ten-by-Pittacus-Lore.pdf
    • http://muicuiu.dumb1.com/7a06a07a01a08a08/Evangelicals-in-the-Public-Square-Four-Formative-Voices-on-Political-Thought-and-Action-by-J-Budziszewski.pdf
    • http://muicuiu.dumb1.com/1a09a04a06a09a02/Revenge-Ice-Cream-and-Other-Things-Best-Served-Cold-Broken-Hearts-amp-Revenge-2-by-Katie-Finn.pdf
    • http://muicuiu.dumb1.com/4a09a09a05a06a07/The-Color-of-Politics-Race-and-the-Mainsprings-of-American-Politics-by-Michael-Goldfield.pdf
    • http://muicuiu.dumb1.com/7a08a03a02a07/Let-the-Sky-Fall-Trilogy-Let-the-Sky-Fall-Let-the-Storm-Break-Let-the-Wind-Rise-by-Shannon-Messenger.pdf
    • http://muicuiu.dumb1.com/3a05a07a09a08a06/Night-Fall-What-Rises-must-Fall-Wolf-Sirens-3-by-Tina-Smith.pdf
    • http://muicuiu.dumb1.com/1a04a04a06a02a00/Deeper-We-Fall-Fall-and-Rise-1-by-Chelsea-M-Cameron.pdf
    • http://muicuiu.dumb1.com/9a04a08a04a02a00/Masamune-kun-no-Revenge-Vol-05-Masamune-kun-no-Revenge-5-by-Hazuki-Takeoka.pdf
    • http://muicuiu.dumb1.com/2a02a05a00a08/The-Man-Without-a-Conscience-by-Jim-Duggins.pdf
    • http://muicuiu.dumb1.com/7a03a06a00a05a09/Bad-Conscience-by-Michel-Quint.pdf
    • http://muicuiu.dumb1.com/8a03a08a00a09a06/The-Bad-Conscience-by-Vladimir-Jank-l-vitch.pdf
    • http://muicuiu.dumb1.com/3a03a04a08a07a04/The-Man-on-Your-Conscience-by-Michael-Eddowes.pdf
    • http://muicuiu.dumb1.com/7a03a06a02a00a06/Conscience-by-John-Skipp.pdf
    • http://muicuiu.dumb1.com/7a02a04a08a01/Cause-and-Conscience-by-Mara-Purl.pdf
    • http://muicuiu.dumb1.com/7a03a04a07a05a01/Politics-Of-The-Archaic-Peloponnese-The-Transition-From-Archaic-To-Classical-Politics-by-K-Adshead.pdf
    • http://muicuiu.dumb1.com/7a03a06a02a02a07/A-Matter-of-Conscience-by-Mary-Hosmar.pdf
    • http://muicuiu.dumb1.com/4a07a08a09a05a09/The-Conscience-of-a-Liberal-by-Paul-Krugman.pdf
    • http://muicuiu.dumb1.com/4a04a08a04a09a02/Conscience-of-the-King-by-Alfred-Duggan.pdf
    • http://muicuiu.dumb1.com/4a09a09a05a06a07/The-Color-of-Politics-Race-and-the-Mainsprings-

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