Malicious PDF — malware analysis report

Static analysis result for SHA-256 75a8ea77fea3a5cd…

MALICIOUS

PDF

16.8 KB Created: 2019-04-30 03:39:31 +01:00 Authoring application: mPDF 5.7
MD5: 86005a3672de8aea5b54ee70ddb9447f SHA-1: 102e50dc6b1022113713f25cbdb981b0d252d028 SHA-256: 75a8ea77fea3a5cdf83c82f7864fcdb85cbb51bea76ceeb8ab87eeb11a75ec0f
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links pointing to external PDF documents on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a phishing lure designed to direct users to potentially malicious content. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact nature of the lure beyond the link farm. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/7a08a03a05a04a04/Hippie-A-Metaphysical-Pseudo-Biography-by-Lee-Martin.pdf
    • http://muicuiu.dumb1.com/8a08a02a01a07/Muriel-Spark-The-Biography-by-Martin-Stannard.pdf
    • http://muicuiu.dumb1.com/8a07a00a02a07a04/Balancing-ACT-The-Authorized-Biography-of-Angela-Lansbury-by-Martin-Gottfried.pdf
    • http://muicuiu.dumb1.com/8a03a06a02a05/The-Doctor-and-the-Detective-A-Biography-of-Sir-Arthur-Conan-Doyle-by-Martin-Booth.pdf
    • http://muicuiu.dumb1.com/4a04a00a00a06a09/More-Beautiful-Than-Me-by-Happy-Hippie.pdf
    • http://muicuiu.dumb1.com/8a07a06a09a01/There-s-a-Hippie-on-the-Highway-by-James-Hadley-Chase.pdf
    • http://muicuiu.dumb1.com/2a07a03a01a06a09/Peace-Love-and-a-Dead-Hippie-Chick-by-N-R-Leigh.pdf
    • http://muicuiu.dumb1.com/4a02a07a09a04a06/My-Not-So-Terrible-Time-at-the-Hippie-Hotel-by-Rosemary-Graham.pdf
    • http://muicuiu.dumb1.com/4a02a03a01a03a00/Metaphysical-Gravity-by-Angela-Amman.pdf
    • http://muicuiu.dumb1.com/2a06a09a09a06a00/The-Metaphysical-Poets-by-Helen-Gardner.pdf
    • http://muicuiu.dumb1.com/8a02a01a06a08a03/Breaking-the-Mold-Confessions-of-a-Hippie-ex-Pastor-by-Charles-McGarry.pdf
    • http://muicuiu.dumb1.com/2a09a02a06a07a07/The-Metaphysical-Elements-of-Ethics-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/5a06a08a03a09/The-Key-of-Life-A-Metaphysical-Investigation-by-Randolph-J-Rogers.pdf
    • http://muicuiu.dumb1.com/7a08a03a02a08a04/Pseudo-by-Samantha-Elias.pdf
    • http://muicuiu.dumb1.com/2a09a02a04a09a03/The-Metaphysical-Principles-of-the-Infinitesimal-Calculus-by-Ren-Gu-non.pdf
    • http://muicuiu.dumb1.com/3a02a09a00a01a02/Boston-Metaphysical-Society-by-Madeleine-Holly-Rosing.pdf
    • http://muicuiu.dumb1.com/7a08a03a03a03a01/Pseudo-Martyr-by-John-Donne.pdf
    • http://muicuiu.dumb1.com/1a05a05a07a03a06/Pseudo-City-by-D-Harlan-Wilson.pdf
    • http://muicuiu.dumb1.com/8a00a06a00a00/Scrapbook-of-a-Taos-Hippie-Tribal-Tales-from-the-Heart-of-a-Cultural-Revolution-by-Iris-Keltz.pdf
    • http://muicuiu.dumb1.com/4a09a07a01a02a02/Sense-and-Goodness-Without-God-A-Defense-of-Metaphysical-Naturalism-by-Richard-C-Carrier.pdf
    • http://muicuiu.dumb1.com/8a02a01a06a08a03/Breaking-the

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