Malicious PDF — malware analysis report

Static analysis result for SHA-256 9885d61faabf29cd…

MALICIOUS

PDF

12.9 KB Created: 2019-04-30 03:30:36 +01:00 Authoring application: mPDF 5.7
MD5: 01b2a404dd325a6008df7cd2ad3d1310 SHA-1: dee2cb75253af0ec46b817b9c0ffbedf048687f2 SHA-256: 9885d61faabf29cdd13e1ff44c83e9ca2b31018aeed8feaf8b7fc84a6938ef73
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which are likely intended to direct users to malicious content or phishing sites. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

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/4a05a07a01a05a08/Good-Bye-Robinson-Crusoe-and-Other-Stories-by-John-Varley.pdf
    • http://muicuiu.dumb1.com/1a03a04a00a08a06/Robinson-Crusoe-2244-Robinson-Crusoe-1-by-E-J-Robinson.pdf
    • http://muicuiu.dumb1.com/2a06a05a02a06/The-John-Varley-Reader-by-John-Varley.pdf
    • http://muicuiu.dumb1.com/2a06a00a09a06/Logorrhea-Good-Words-Make-Good-Stories-by-John-Klima.pdf
    • http://muicuiu.dumb1.com/6a01a04a00a06a04/Robinson-Crusoe-by-Pat-Rogers.pdf
    • http://muicuiu.dumb1.com/6a01a03a09a09a09/Robinson-Crusoe-by-Van-Gool.pdf
    • http://muicuiu.dumb1.com/6a01a04a00a07a03/Robinson-Crusoe-1-000-000-A-D-by-Terry-Sunbord.pdf
    • http://muicuiu.dumb1.com/6a01a03a09a01a00/Robinson-Crusoe-by-Robin-Jacques.pdf
    • http://muicuiu.dumb1.com/4a01a06a04a03a03/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/9a03a06a00a08a07/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/6a01a00a00a00a09/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/2a00a09a08a09a04/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/6a01a03a09a00a07/Robinson-Crusoe-by-Julek-Heller.pdf
    • http://muicuiu.dumb1.com/6a09a09a00a07a08/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/4a08a06a05a03a04/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/5a03a08a06a04a05/Robinson-Cruso-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/7a03a03a01a04a01/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/6a01a03a09a05a04/Robinson-Crusoe-by-Stephen-Feinstein.pdf
    • http://muicuiu.dumb1.com/2a07a01a00a06a03/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/7a08a03a02a03/Robinson-Crusoe-by-Daniel-Defoe.pdf
    • http://muicuiu.dumb1.com/2a00a09a08a09a

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