Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f3fb5224235206d…

MALICIOUS

PDF

14.4 KB Created: 2019-04-30 04:02:07 +01:00 Authoring application: mPDF 5.7
MD5: 519e1f58f2ba19268491542f1202ff44 SHA-1: 7243945e2040f908bb077125990dc65b3492f4a7 SHA-256: 4f3fb5224235206d23352938e45e8fd81d7bf4118cc1fc9780a37569c23d0441
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. While most of these URLs were marked as confirmed_benign, the sheer volume and the ML_NYX_PDF_MALICIOUS classification indicate a malicious intent, likely for SEO spam or to redirect users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/5a09a01a06a05a08/The-Blair-Witch-Project-Il-mistero-della-strega-di-Blair-Il-dossier-by-D-A-Stern.pdf
    • http://muicuiu.dumb1.com/2a00a06a09a06/My-Favorite-Witch-Accidental-Witch-Trilogy-2-by-Annette-Blair.pdf
    • http://muicuiu.dumb1.com/4a07a06a04a03a04/Gone-with-the-Witch-Triplet-Witch-Trilogy-2-by-Annette-Blair.pdf
    • http://muicuiu.dumb1.com/2a08a02a03a05a03/Gone-with-the-Witch-Triplet-Witch-Trilogy-2-by-Annette-Blair.pdf
    • http://muicuiu.dumb1.com/9a01a06a05a05a07/The-Horror-Genre-From-Beelzebub-to-Blair-Witch-by-Paul-Wells.pdf
    • http://muicuiu.dumb1.com/1a01a07a06a07a07a08/Witch-in-Training-A-Blair-Wilkes-Mystery-Book-2-by-Elle-Adams.pdf
    • http://muicuiu.dumb1.com/1a05a04a05a05a04/The-Red-Web-by-Blair-Coan.pdf
    • http://muicuiu.dumb1.com/4a05a08a05a01a06/Moonwalking-by-D-Blair.pdf
    • http://muicuiu.dumb1.com/2a09a09a00a07a08/Clay-s-Way-by-Blair-Mastbaum.pdf
    • http://muicuiu.dumb1.com/7a09a07a04a06a04/Atavism-by-Karyn-Blair.pdf
    • http://muicuiu.dumb1.com/3a05a05a08a04a02/The-Quarterback-by-Mackenzie-Blair.pdf
    • http://muicuiu.dumb1.com/3a03a04a02a06a06/Stay-With-Me-by-Jessica-Blair.pdf
    • http://muicuiu.dumb1.com/9a09a02a05a06a02/Farang-by-Peter-Blair.pdf
    • http://muicuiu.dumb1.com/3a06a09a04a01a09/Protectors-by-Samantha-Blair.pdf
    • http://muicuiu.dumb1.com/4a01a08a02a04a00/Falling-Fading-3-by-E-K-Blair.pdf
    • http://muicuiu.dumb1.com/4a01a07a04a01a02/A-Winter-Heart-by-Annette-Blair.pdf
    • http://muicuiu.dumb1.com/3a01a07a05a08a01/Florida-Knight-by-Blair-Bancroft.pdf
    • http://muicuiu.dumb1.com/4a05a00a07a02a04/Lady-Silence-by-Blair-Bancroft.pdf
    • http://muicuiu.dumb1.com/5a01a02a07a00a06/Shifting-Tides-by-Carroll-Blair.pdf
    • http://muicuiu.dumb1.com/4a05a09a02a00a06/The-Day-the-Music-Died-by-Blair-Evans.pdf
    • http://muicuiu.dumb1.com/3a05a05a08a04a02/The-Quarterba

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