Malicious PDF — malware analysis report

Static analysis result for SHA-256 97371577e5cd901f…

MALICIOUS

PDF

16.3 KB Created: 2019-04-30 05:30:25 +01:00 Authoring application: mPDF 5.7
MD5: b4ddac6defb99f028b0ca42955bff507 SHA-1: 142673b8e5af22c068197be88aaba4269d8d286f SHA-256: 97371577e5cd901f8fcc065f9bbff99a819403fe66eacca8b3642a661d2c8831
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded external links, identified as a link farm. While the specific intent is unclear due to the benign reputation of the initial URLs, this technique is often used for SEO manipulation or to redirect users to malicious sites. The ML classifier also flagged the PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

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/6a09a08a06a07a08/The-Liar-s-Room-by-Simon-Lelic.pdf
    • http://muicuiu.dumb1.com/2a07a09a02a01a08/The-New-Neighbors-by-Simon-Lelic.pdf
    • http://muicuiu.dumb1.com/8a03a02a00a09/A-Thousand-Cuts-by-Simon-Lelic.pdf
    • http://muicuiu.dumb1.com/3a09a03a01a02a05/Liar-Liar-The-Theory-Practice-and-Destructive-Properties-of-Deception-Liar-Liar-1-by-Gary-Paulsen.pdf
    • http://muicuiu.dumb1.com/3a00a01a07a02a05/Liar-Liar-Panties-on-Fire-A-Stepbrother-Romance-Novella-by-Bella-Bordeaux.pdf
    • http://muicuiu.dumb1.com/9a09a02a07a04a07/Liar-Liar-Pants-on-Fire-Donald-Trump-s-War-with-the-Media-by-D-Farang.pdf
    • http://muicuiu.dumb1.com/8a08a00a05a05a04/Liar-Liar-Detective-Harriet-Blue-3-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/3a00a00a08a04a01/Liar-Liar-Cat-DeLuca-Mysteries-1-by-K-J-Larsen.pdf
    • http://muicuiu.dumb1.com/3a06a04a09a06a08/Big-Fat-Liar-Book-2-Big-Fat-Liar-2-by-Cookie-Moretti.pdf
    • http://muicuiu.dumb1.com/1a05a09a02a05a09/Liar-Liar-Cat-DeLuca-Mysteries-1-by-K-J-Larsen.pdf
    • http://muicuiu.dumb1.com/8a08a00a07a09a00/Liar-Liar-2-by-Lia-Fairchild.pdf
    • http://muicuiu.dumb1.com/8a07a04a01a05/Simon-s-Cat-in-Kitten-Chaos-Simon-s-Cat-3-by-Simon-Tofield.pdf
    • http://muicuiu.dumb1.com/1a01a06a06a06a01a02/One-Room-Schools-Stories-from-the-Days-of-1-Room-1-Teacher-8-Grades-by-Susan-Apps-Bodilly.pdf
    • http://muicuiu.dumb1.com/3a01a07a06a06a05/Simon-s-Cat-vs-the-World-Simon-s-Cat-4-by-Simon-Tofield.pdf
    • http://muicuiu.dumb1.com/2a08a03a09a04a02/The-Dead-Room-The-Dead-Room-Trilogy-1-by-Stephanie-Erickson.pdf
    • http://muicuiu.dumb1.com/8a08a00a06a00a07/Once-a-Liar-by-A-F-Brady.pdf
    • http://muicuiu.dumb1.com/3a01a08a00a02a05/Simon-s-Cat-Off-to-the-Vet-and-Other-Cat-astrophes-by-Simon-Tofield.pdf
    • http://muicuiu.dumb1.com/4a05a03a01a01a05/The-120-Days-of-Simon-by-Simon-G-rdenfors.pdf
    • http://muicuiu.dumb1.com/3a04a05a04a00a00/Compulsive-Liar-1-by-Lia-Fairchild.pdf
    • http://muicuiu.dumb1.com/2a08a06a06a03a08/Liar-of-Kudzu-by-Bob-Schooley.pdf
    • http://muicuiu.dumb1.com/8a08a00a07a09a00/Liar-Liar-2-by-Lia-F

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