Malicious PDF — malware analysis report

Static analysis result for SHA-256 f407148caad1feae…

MALICIOUS

PDF

13.3 KB Created: 2019-05-02 00:43:48 +01:00 Authoring application: mPDF 5.7
MD5: fd22cd139d9a7e5475c4e6652b4df32d SHA-1: b48a6293f422b8beb8030be48d5d19f5ebd141cc SHA-256: f407148caad1feaeabb9077c646a2fd15d1035cd860810e1ccecec5512665f61
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, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though partially corrupted, contains numerous URLs pointing to book titles, suggesting a lure to download content or a link farm for SEO manipulation. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/3a04a00a07a03/The-Lying-Game-The-Lying-Game-1-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/5a04a06a01a00/The-First-Lie-The-Lying-Game-0-5-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/5a02a09a08a02a09/The-Lying-Game---tome-5-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/5a02a09a07a07a04/The-Lying-Game---tome-3-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/3a07a04a00a02/Two-Truths-and-a-Lie-The-Lying-Game-3-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/5a08a00a01/The-Lying-Game-by-Ruth-Ware.pdf
    • http://muicuiu.dumb1.com/7a06a04a04/The-Lying-Game-by-Ruth-Ware.pdf
    • http://muicuiu.dumb1.com/5a02a09a08a02a05/1-Les-Perfectionnistes-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/5a02a09a08a03a02/Les-perfectionnistes---tome-2-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/4a05a09a09a02a08/Wanted-Pretty-Little-Liars-8-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/1a04a08a03a07a01/Vicious-Pretty-Little-Liars-16-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/6a05a09a04a06/Crushed-Pretty-Little-Liars-13-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/3a05a02a02a02/Flawless-Pretty-Little-Liars-2-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/1a07a05a05a09a08/Ruthless-Pretty-Little-Liars-10-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/4a05a09a07a00a03/Perfect-Pretty-Little-Liars-3-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/6a07a05a01a01/Stunning-Pretty-Little-Liars-11-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/4a03a03a06a03/Deadly-Pretty-Little-Liars-14-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/3a08a02a09a06/Wicked-Pretty-Little-Liars-5-by-Sara-Shepard.pdf
    • http://muicuiu.dumb1.com/1a08a03a04a03a09/The-Tender-Carnivore-and-the-Sacred-Game-by-Paul-Shepard.pdf
    • http://muicuiu.dumb1.com/3a04a01a09a01a03/Shell-Game-V-I-Warshawski-19-by-Sara-Paretsky.pdf
    • http://muicuiu.dumb1.com/6a05a09a04a06/Crushed-Pretty-Little-Liars-13-by-Sar

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