Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e3201ce147c54b…

MALICIOUS

PDF

13.2 KB Created: 2019-05-02 06:50:01 +01:00 Authoring application: mPDF 5.7
MD5: a23750fecf71b7a8ca050fd0692a143f SHA-1: 03d18c647e6d5cf1adc3e0976952262308c904f8 SHA-256: 49e3201ce147c54b03160b9fb9e8665bd70b29b049df8ba9999b70bc7ec333de
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While most of these links point to benign-looking book titles, the sheer volume and the ML classifier's high confidence score suggest a malicious intent, possibly for SEO poisoning or to distribute further malware. The document body is heavily obfuscated but contains the same URLs found in the heuristics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/4a08a00a05a02a02/Home-Alone-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a09a02/The-Pagemaster-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a00a05/The-Good-Son-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/1a00a07a01a00a04a08/The-Summer-of-69-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/2a02a01a08a04a08/Famous-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a03a00a03a04/Lifeguards-Summer-s-End-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/2a07a09a04a04/Friends-Till-the-End-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a09a04/Too-Scared-To-Sleep-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a03a07a09/Boot-Camp-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a09a05a07/The-Diving-Bell-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a09a05a03/Slide-or-Die-Drift-X-1-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a09a05a08/Help-I-m-Trapped-in-Santa-s-Body-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a01a03/Help-I-m-Trapped-in-the-First-Day-of-Summer-Camp-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/1a09a04a01a05a08/Home-Alone-2-Lost-in-New-York-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a09a00/Help-I-m-Trapped-in-an-Alien-s-Body-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a08a05/Count-Your-Blessings-Mob-Princess-3-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a00a02/Help-I-m-Trapped-In-My-Teacher-s-Body-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a08a01a01/Help-I-m-Trapped-In-Obedience-School-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a02a09a06a00/Super-Mario-Bros-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/8a01a03a00a02a05/Help-I-m-Trapped-In-My-Camp-Counselor-s-Body-by-Todd-Strasser.pdf
    • http://muicuiu.dumb1.com/1a09a04a01a05a08/Ho

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