Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9bfe7db1b4803ef…

MALICIOUS

PDF

14.7 KB Created: 2019-05-02 00:52:43 +01:00 Authoring application: mPDF 5.7
MD5: a93c1fea1ec6312c6f31a87a8a8d1d68 SHA-1: 005e41b85eeb08b0c3f6dcc8bf2d3f3f398d2bcf SHA-256: a9bfe7db1b4803ef984675ead8a774b2644bd07ceafe44013a646dde20480ca4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF document contains a large number of embedded links to external PDF files hosted on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a redirection scheme designed to lead users to potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

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/3a01a02a04a09a03/Princess-Luciana-the-Pretty-Kitty-Cat-by-Nona-J-Fairfax.pdf
    • http://muicuiu.dumb1.com/3a00a02a09a05a05/The-Orange-Mermaid-by-Nona-J-Fairfax.pdf
    • http://muicuiu.dumb1.com/3a01a02a05a05a04/THE-TWIN-DOLPHINS-AND-THE-BIG-MOUNTAIN-by-Nona-J-Fairfax.pdf
    • http://muicuiu.dumb1.com/4a07a09a04a09a01/Shane-and-Shawn-the-Shark-by-Nona-J-Fairfax.pdf
    • http://muicuiu.dumb1.com/3a00a02a09a06a05/The-Blue-Mermaid-and-The-Little-Dolphin-Book-3-by-Nona-J-Fairfax.pdf
    • http://muicuiu.dumb1.com/3a01a02a03a08a07/The-Blue-Mermaid-and-The-Little-Dolphin-Book-3-by-Nona-J-Fairfax.pdf
    • http://muicuiu.dumb1.com/2a03a03a00a01a01/Kitty-Kitty-Bad-Kitty-2-by-Michele-Jaffe.pdf
    • http://muicuiu.dumb1.com/4a00a00a00a07a00/Kitty-Raises-Hell-Kitty-Norville-6-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/2a03a04a05a02a08/Kitty-s-Greatest-Hits-Kitty-Norville-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/2a00a05a07a03a01/Kitty-s-House-of-Horrors-Kitty-Norville-7-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/3a09a09a00a04a05/Kitty-and-the-Silver-Bullet-Kitty-Norville-4-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/3a09a07a01a01a08/Kitty-Takes-a-Holiday-Kitty-Norville-3-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/5a04a00a09a00/Kitty-s-House-of-Horrors-Kitty-Norville-7-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/1a03a01a04a00a02/Kitty-s-Big-Trouble-Kitty-Norville-9-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/1a02a01a04a08a06/Kitty-Goes-to-War-Kitty-Norville-8-by-Carrie-Vaughn.pdf
    • http://muicuiu.dumb1.com/2a09a06a06a07a06/Bad-Kitty-Bad-Kitty-1-by-Michele-Jaffe.pdf
    • http://muicuiu.dumb1.com/4a00a09a09a01/Bad-Kitty-Bad-Kitty-1-by-Michele-Jaffe.pdf
    • http://muicuiu.dumb1.com/4a02a00a04a04a04/Pretty-Hot-Pretty-1-by-Donna-Alam.pdf
    • http://muicuiu.dumb1.com/5a04a03a04a09a09/Pretty-Hot-Pretty-1-by-Donna-Alam.pdf
    • http://muicuiu.dumb1.com/7a04a06a02a04/Nona-amp-Me-by-Clare-Atkins.pdf

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