Malicious PDF — malware analysis report

Static analysis result for SHA-256 c35d29e75c487e5f…

MALICIOUS

PDF

17.2 KB Created: 2019-04-29 22:58:13 +01:00 Authoring application: mPDF 5.7
MD5: c067a7ae90e1358d094660c2e1d9c0f5 SHA-1: 93e2eb4ae51a5c816e22aba77bdf81171f861561 SHA-256: c35d29e75c487e5fc5850586a3c12a777df8cc52dff34e346a37b85a05d598e9
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. While no scripts were extracted, the PDF structure and the sheer volume of links suggest an attempt to direct users to potentially harmful content, possibly as a lure for further exploitation or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/1a08a06a06a02a07/The-Private-Patient-Adam-Dalgliesh-14-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/2a02a05a03a07a06/Unnatural-Causes-Adam-Dalgliesh-3-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/1a09a01a04a03a01/A-Certain-Justice-Adam-Dalgliesh-10-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/3a04a02a05a08a02/The-Lighthouse-Adam-Dalgliesh-13-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/2a05a01a03a03a04/Cover-Her-Face-Adam-Dalgliesh-1-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/1a07a04a06a06/Shroud-for-a-Nightingale-Adam-Dalgliesh-4-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/3a03a06a03a03a03/Cover-Her-Face-Adam-Dalgliesh-1-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/5a03a02a00a03/Death-in-Holy-Orders-Adam-Dalgliesh-11-by-P-D-James.pdf
    • http://muicuiu.dumb1.com/7a05a09a05a09a05/Private-Gold-Private-13-5-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/6a08a01a09a02a01/Private-Princess-Private-14-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/4a03a02a06a05/Private-Private-1-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/2a08a05a01a06a05/Private-Private-1-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/3a05a02a03/Private-Rio-Private-11-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/1a00a07a09a04a09a06/Private-Oz-Private-7-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/5a08a05a06a08a05/How-to-Become-Patient-How-to-Build-Patience-and-Remove-Impatience-by-James-O-39-Donnell.pdf
    • http://muicuiu.dumb1.com/5a00a03a09a00a03/The-Private-Memoirs-and-Confessions-of-a-Justified-Sinner-by-James-Hogg.pdf
    • http://muicuiu.dumb1.com/3a09a01a06a07a08/The-Private-Memoirs-and-Confessions-of-a-Justified-Sinner-by-James-Hogg.pdf
    • http://muicuiu.dumb1.com/3a08a08a09a00/The-Private-Memoirs-and-Confessions-of-a-Justified-Sinner-by-James-Hogg.pdf
    • http://muicuiu.dumb1.com/4a07a09a08a02a08/GEDLA-ADAM-The-Combat-of-Adam-Against-Satan-The-Book-of-Adam-amp-Eve-by-Ethiopian-Church.pdf
    • http://muicuiu.dumb1.com/4a02a06a02a04a02/The-First-Detective-The-Life-and-Revolutionary-Times-of-Eugene-Vidocq-Criminal-Spy-and-Private-Eye-by-James-Morton.pdf

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