Malicious PDF — malware analysis report

Static analysis result for SHA-256 a603dffa8f96012c…

MALICIOUS

PDF

15.2 KB Created: 2019-04-30 08:12:44 +01:00 Authoring application: mPDF 5.7
MD5: a62d38793a8e016345b4f0ddf49b6c43 SHA-1: e5a4e43630e18ad656d8874115220808de62d94a SHA-256: a603dffa8f96012c4354d6f98c7829ef8d7af745aa18d60c5e33e2c51505d241
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'muicuiu.dumb1.com'. This is indicative of a link farm or a redirection scheme designed to lead users to potentially malicious content. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, limiting the ability to determine further payload delivery or execution details.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/3a08a05a02a08a00/The-Perfect-Question-Questions-for-a-Highlander-0-5-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/4a05a00a05a01a06/A-Question-for-Harry-Questions-for-a-Highlander-4-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/3a08a05a02a07a09/A-Question-of-Love-Questions-for-a-Highlander-1-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/2a06a09a01a04a08/A-Question-of-Love-Questions-for-a-Highlander-1-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/3a08a05a02a08a02/A-Question-of-Trust-Questions-for-a-Highlander-2-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/2a09a09a03a00a09/Taken-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/2a00a00a09a09/Taken-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/3a00a00a03a07a05/A-Time-amp-Place-for-Every-Laird-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/3a00a00a03a08a02/A-Laird-to-Hold-A-Laird-for-All-Time-5-by-Angeline-Fortin.pdf
    • http://muicuiu.dumb1.com/5a03a05a05a05a03/Ernest-Fortin-Collected-Essays-by-Ernest-L-Fortin.pdf
    • http://muicuiu.dumb1.com/1a08a09a01a08a07/Highlander-s-Faerie-Highlander-Heat-5-by-Joanne-Wadsworth.pdf
    • http://muicuiu.dumb1.com/8a04a09a05a04a05/O-Toque-do-Highlander-Highlander-3-by-Karen-Marie-Moning.pdf
    • http://muicuiu.dumb1.com/2a02a06a01a00a01/The-Highlander-s-Touch-Highlander-3-by-Karen-Marie-Moning.pdf
    • http://muicuiu.dumb1.com/1a08a09a01a02a07/Highlander-s-Guardian-Highlander-Heat-4-by-Joanne-Wadsworth.pdf
    • http://muicuiu.dumb1.com/6a09a01a02a06a03/Highlander-s-Castle-Highlander-Heat-1-by-Joanne-Wadsworth.pdf
    • http://muicuiu.dumb1.com/8a04a00a09a05/Secrets-of-the-Highlander-Highlander-6-by-Janet-Chapman.pdf
    • http://muicuiu.dumb1.com/8a05a04a08a07/Highlander-for-the-Holidays-Highlander-8-by-Janet-Chapman.pdf
    • http://muicuiu.dumb1.com/4a06a06a04a09a04/Return-of-the-Highlander-Highlander-4-by-Julianne-MacLean.pdf
    • http://muicuiu.dumb1.com/1a07a02a05a08a02/Loving-the-Highlander-Highlander-2-by-Janet-Chapman.pdf
    • http://muicuiu.dumb1.com/5a03a06a06a03/Captured-by-the-Highlander-Highlander-1-by-Julianne-MacLean.pdf

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