Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0aab2c079f04d0c…

MALICIOUS

PDF

15.3 KB Created: 2019-05-02 17:08:57 +01:00 Authoring application: mPDF 5.7
MD5: 6e4f8799dcd0d5c6f1ae7cc4b605a51f SHA-1: 87e8db128b51090d70135adb9980c452bab54a42 SHA-256: d0aab2c079f04d0cc7355ba21e3ce6d22f4b8d526325980a84e0bc81b4ae1beb
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 to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content.

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/2a01a04a03a02a03/The-Aztlanian-Rithmatist-2-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/3a04a04a08a03a06/The-Rithmatist-Rithmatist-1-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/3a06a06a09a02a09/The-Rithmatist-Rithmatist-1-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/3a01a02a05a08/The-Rithmatist-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/6a03a00a01a06a07/Brandon-Sanderson-Stormlight-Archive-Book-One-Collection-2-Books-Bundle-With-Gift-Journal-The-Way-of-Kings-Part-One-The-Way-of-Kings-Part-Two-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/3a04a00a01a09a04/Firstborn-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/2a01a06a01a08a08/Lift-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/8a03a04a02a02a02/Legion-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/5a04a03a05/Snapshot-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/4a04a07a09a01a08/Shadows-of-Self-Mistborn-5-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/4a01a01a01a08a04/Sixth-of-the-Dusk-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/4a04a01a05a09/The-Alloy-of-Law-Mistborn-4-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/3a07a06a03a07a01/The-Alloy-of-Law-Mistborn-4-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/5a09a04a04a00a01/White-Sand-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/1a07a04a02a01a00/Mitosis-The-Reckoners-1-5-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/4a06a09a08a06a02/Elantris-Part-1-of-3-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/4a02a08a02a00/The-Well-of-Ascension-Mistborn-2-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/5a07a07a09a05/Steelheart-Reckoners-1-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/3a01a01a05a09a09/The-Well-of-Ascension-Mistborn-2-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/2a01a04a03a03a09/Nightblood-Warbreaker-2-by-Brandon-Sanderson.pdf
    • http://muicuiu.dumb1.com/5a04a03a05/Snapshot-by-Brandon-Sande

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