Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e915a70a881c79b…

MALICIOUS

PDF

14.6 KB Created: 2019-05-02 01:44:48 +01:00 Authoring application: mPDF 5.7
MD5: 79516fdcee15430b1e251fbec152bd16 SHA-1: 1e1f5a259345fe16fff7b9db8c8fb1a57bb160d4 SHA-256: 1e915a70a881c79b180390362d760cc636e7de3fc0599f63231689fcdfb8bd5f
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 websites, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a malicious intent to drive traffic to these or similar sites.

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/7a07a01a04a02a01/Under-the-Influence-Kate-Shugak-13-5-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/1a07a03a06a09a01/Bad-Blood-Kate-Shugak-20-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/8a04a06a00a06/Blood-Will-Tell-Kate-Shugak-6-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/8a03a02a02a08/Play-With-Fire-Kate-Shugak-5-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/8a05a08a08a03/A-Taint-In-The-Blood-Kate-Shugak-14-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/1a06a04a09a06/A-Cold-Day-For-Murder-Kate-Shugak-1-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/2a08a06a01a06a05/A-Deeper-Sleep-Kate-Shugak-15-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a02a07a00/Any-Taint-of-Vice-Kate-Shugak-19-5-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a02a07a04/Wreck-Rights-Kate-Shugak-13-6-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a02a07a06/Cherchez-la-Femme-Kate-Shugak-17-5-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/8a02a02a05a05/A-Night-Too-Dark-Kate-Shugak-17-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/8a04a03a03a01/Whisper-To-The-Blood-Kate-Shugak-16-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a04a07a03/Les-enqu-tes-de-Kate-Shugak---Int-grale-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/8a05a01a05a05/Hunter-s-Moon-Kate-Shugak-9-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/8a04a00a05a05/A-Cold-Blooded-Business-Kate-Shugak-4-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/1a07a08a04a09a03/Restless-In-The-Grave-Kate-Shugak-19-Liam-Campbell-5-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a04a01a09/The-Mysterious-North-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a05a02a09/Taint-in-the-Blood-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/4a06a02a04a06a04/Silk-and-Song-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a04a02a08/Justice-is-a-Two-edged-Sword-by-Dana-Stabenow.pdf
    • http://muicuiu.dumb1.com/7a07a01a04a07a03/Les-enqu-tes-de-Kate-Shugak---Int-grale-by-Dana-Staben

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