Malicious PDF — malware analysis report

Static analysis result for SHA-256 30d92bbf20e8ec0d…

MALICIOUS

PDF

12.9 KB Created: 2019-05-02 00:49:21 +01:00 Authoring application: mPDF 5.7
MD5: d437f5459d179066ac403bf4f46c0e09 SHA-1: f1ed6ef27f0f044ffbf4f859466c58ff4c845a9d SHA-256: 30d92bbf20e8ec0dc8b5aa18ec28374522ac026f5bbd87c2bb8e3fde287dbf2e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which point to various book titles. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document as malicious. The primary attack pattern involves directing users to a link farm, likely as a precursor to further malicious activity or to generate ad revenue. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

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.dumb
    • http://muicuiu.dumb1.com/5a08a08a02a02a00/White-Fang-By-Jack-London---Illustrated-And-Unabridged-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/3a04a07a00a03a04/The-Portable-Jack-London-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/1a05a07a05a00a01/The-Edge-of-the-Abyss-The-Abyss-Surrounds-Us-2-by-Emily-Skrutskie.pdf
    • http://muicuiu.dumb1.com/1a02a08a02a03a01/The-Red-One-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/4a03a01a06a03a01/The-Jacket-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/3a04a08a01a07/The-Sea-Wolf-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/2a02a05a07a09a03/The-Sea-Wolf-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/8a03a01a03a04a05/B-tard-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/1a00a02a04a05a05a06/War-of-the-Classes-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/3a02a02a05a04/The-Call-of-the-Wild-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/4a03a01a04a09a09/South-Sea-Tales-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/6a05a02a02a06a00/The-Call-of-the-Wild-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/9a08a04a01a08a05/The-Call-of-the-Wild-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/2a06a04a03a03a09/The-Faith-of-Men-and-Other-Stories-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/6a01a00a00a00a04/The-Call-of-the-Wild-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/9a03a05a08a04a00/The-Call-of-the-Wild-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/6a00a05a01a05a04/L-Appel-de-la-for-t-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/9a08a04a01a06a02/The-Call-of-the-Wild-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/4a03a01a03a00/The-Star-Rover-by-Jack-London.pdf
    • http://muicuiu.dumb1.com/7a08a02a09a02a08/The-Call-of-the-Wild-by-Jack-London.pdf

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