Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9dde22d19611d5…

MALICIOUS

PDF

16.7 KB Created: 2019-04-30 04:54:42 +01:00 Authoring application: mPDF 5.7
MD5: 274c691dc3847e4a96567affbf23877c SHA-1: 7514a2f2a14065e40691b4e4dcc22efc3f8902db SHA-256: 7e9dde22d19611d5f1759431143c85ca5ac793db9c0c4a3d6e972e669e8cde6c
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the presence of a link farm suggests the document is designed to redirect users to potentially malicious content, possibly for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/3a06a01a04a09a03/The-Marble-Faun-or-The-Romance-of-Monte-Beni-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/9a09a03a07a01a01/The-Complete-Works-of-Nathaniel-Hawthorne-Novels-Short-Stories-Poetry-Essays-Letters-and-Memoirs-Illustrated-Edition-The-Scarlet-Letter-with-its-Romance-Tanglewood-Tales-Birthmark-Ghost-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/8a04a04a08a07a05/The-Complete-Works-of-Nathaniel-Hawthorne-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/6a08a05a04a01a04/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/5a03a01a00a07a07/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/8a02a09a03a07a04/The-House-of-the-Seven-Gables-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/3a05a00a05a06a02/Mosses-from-an-Old-Manse-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/1a00a02a00a08a07a02/The-House-of-the-Seven-Gables-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/1a00a08a03a07a05a04/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/9a05a07a00a04a03/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/6a09a00a05a05a06/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/8a04a05a06a06a02/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/1a09a02a02a06a09/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/9a03a00a02a07a09/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/1a01a09a04a03a05a07/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/4a06a00a03a04a07/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/3a02a05a03a08a01/Tales-and-Sketches-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/1a00a04a07a01a04a03/The-Scarlet-Letter-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/3a09a04a09a05a03/The-Blithedale-Romance-by-Nathaniel-Hawthorne.pdf
    • http://muicuiu.dumb1.com/5a08a06a09a04a06/La-Lettre-carlate-by-Nathaniel-Hawthorne.pdf

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