Malicious PDF — malware analysis report

Static analysis result for SHA-256 97f901c57891cdf1…

MALICIOUS

PDF

17.3 KB Created: 2019-05-02 01:37:23 +01:00 Authoring application: mPDF 5.7
MD5: 3e18f3d8d7c8e1e43d82093f36ce29dc SHA-1: a4609131c9947bc5b17284606a06a988ec7d5094 SHA-256: 97f901c57891cdf16e6932b4680dc8bcd579938d8d17c75407bf0be975749e3d
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external 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 heuristic's classification suggest a malicious intent, possibly for SEO manipulation or to redirect users to malicious sites. The ML_NYX_PDF_MALICIOUS classifier strongly supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/4a09a05a07a05a06/Dogs-in-the-Dead-of-Night-Magic-Tree-House-Series-46-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/2a03a01a00a06a05/Eve-of-the-Emperor-Penguin-Magic-Tree-House-40-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/1a09a01a00a05a07/Dingoes-at-Dinnertime-Magic-Tree-House-20-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/2a00a08a03a05a06/Tigers-at-Twilight-Magic-Tree-House-19-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/2a04a02a09a06a03/Day-of-the-Dragon-King-Magic-Tree-House-14-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/1a08a01a04a09a08/Winter-of-the-Ice-Wizard-Magic-Tree-House-32-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/2a04a02a09a09a06/Monday-with-a-Mad-Genius-Magic-Tree-House-38-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/4a07a08a02a08/Afternoon-on-the-Amazon-Magic-Tree-House-6-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/2a04a03a09a04a00/Viking-Ships-At-Sunrise-Magic-Tree-House-15-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/3a01a06a03a09a02/Dog-Heroes-Magic-Tree-House-Fact-Tracker-24-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/5a00a05a04a06a00/Hurricane-Heroes-in-Texas-Magic-Tree-House-30-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/8a08a02a08a06/Ghost-Town-at-Sundown-Magic-Tree-House-10-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/1a01a06a04a04a01a08/A-Perfect-Time-for-Pandas-Magic-Tree-House-48-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/4a08a08a01a00a08/Ghosts-Magic-Tree-House-Research-Guide-20-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/8a07a06a05a04/Haunted-Castle-on-Hallow-s-Eve-Magic-Tree-House-30-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/4a08a08a00a09a08/Leonardo-da-Vinci-Magic-Tree-House-Research-Guide-19-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/4a06a05a05a01a07/Horse-Heroes-Magic-Tree-House-Fact-Tracker-27-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/4a08a08a02a02a03/Kids-in-Hard-Times-Magic-Tree-House-Research-Guide-22-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/4a08a07a09a01a01/Polar-Bears-and-the-Arctic-Magic-Tree-House-Research-Guide-16-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/3a01a04a06a03a05/Leprechauns-and-Irish-Folklore-Magic-Tree-House-Research-Guide-21-by-Mary-Pope-Osborne.pdf
    • http://muicuiu.dumb1.com/3a01a06a03a09a02/Dog-Heroes-Magic-Tree-House-Fact-Tracker-24-by-Mar

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