Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6b46c2a8d8f05f…

MALICIOUS

PDF

17.6 KB Created: 2019-04-30 03:58:14 +01:00 Authoring application: mPDF 5.7
MD5: 82d203a50566c1bc08e3a90e17a3023b SHA-1: 1799ce3bae02460f0d6835b4f69f82199582e8e0 SHA-256: ae6b46c2a8d8f05f9b6dbe02233512b10bc9f23bea8c419b56c6df103d64c705
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified as a link farm, which is a common technique for SEO poisoning or redirecting users to malicious sites. The ML classifier also flagged this PDF as malicious. While the specific URLs extracted were classified as benign, the sheer volume and the heuristic firing indicate a malicious intent to direct users to external content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/1a01a09a08a05a07a07/Olaf-Nicolai---Sammlers-Blick-A-Catalogue-A-Catalogue-by-Boris-Groys.pdf
    • http://muicuiu.dumb1.com/5a05a07a06a07a07/Boris-The-Rise-Of-Boris-Johnson-by-Andrew-Gimson.pdf
    • http://muicuiu.dumb1.com/5a05a07a06a02a02/Boris-Gets-a-Lizard-Boris-2-by-Andrew-Joyner.pdf
    • http://muicuiu.dumb1.com/5a06a03a07a04a05/The-Fabulous-Women-of-Boris-Vallejo-and-Julie-Bell-by-Boris-Vallejo.pdf
    • http://muicuiu.dumb1.com/1a01a01a07a09a08a02/Boris-Akunin-Books-2017-Checklist-Reading-Order-of-An-Erast-Fandorin-Mystery-Series-and-List-of-All-Boris-Akunin-Books-by-Diamond-Books.pdf
    • http://muicuiu.dumb1.com/5a06a03a08a03a01/Hindsight-Boris-Vallejo-His-Photographic-Art-by-Boris-Vallejo.pdf
    • http://muicuiu.dumb1.com/5a05a07a07a09a09/Dreams-The-Art-of-Boris-Vallejo-by-Boris-Vallejo.pdf
    • http://muicuiu.dumb1.com/7a09a03a08a06a02/Golf-Flow-by-Gio-Valiante.pdf
    • http://muicuiu.dumb1.com/3a06a08a05a09a06/Gene-Flow-by-Robyn-Shot.pdf
    • http://muicuiu.dumb1.com/4a05a02a07a05/All-Rivers-Flow-To-The-Sea-by-Alison-McGhee.pdf
    • http://muicuiu.dumb1.com/2a05a00a05a01/Flow-My-Tears-the-Policeman-Said-by-Philip-K-Dick.pdf
    • http://muicuiu.dumb1.com/1a01a02a08a05a06a07/The-Physics-of-Coronary-Blood-Flow-by-M-Zamir.pdf
    • http://muicuiu.dumb1.com/1a01a03a09a03a07a09/Cerebral-Blood-Flow-Regulation-by-Nodar-P-Mitagvaria.pdf
    • http://muicuiu.dumb1.com/1a01a03a02a06a05a03/Dislocations-Mesoscale-Simulations-and-Plastic-Flow-by-Ladislas-Kubin.pdf
    • http://muicuiu.dumb1.com/1a00a07a00a07a01a06/Faults-Flow-Finance-and-Pressure-in-Exploration-Assessments-by-Ian-Lerche.pdf
    • http://muicuiu.dumb1.com/4a01a04a04a09a02/Creativity-Flow-and-the-Psychology-of-Discovery-and-Invention-by-Mihaly-Csikszentmihalyi.pdf
    • http://muicuiu.dumb1.com/1a08a07a09a07a05/Wind-How-the-Flow-of-Air-Has-Shaped-Life-Myth-and-the-Land-by-Jan-Deblieu.pdf
    • http://muicuiu.dumb1.com/1a01a03a02a07a05a04/Dislocations-Mesoscale-Simulations-and-Plastic-Flow-by-Ladislas-Kubin.pdf
    • http://muicuiu.dumb1.com/1a00a04a04a08a01/God-Makes-the-Rivers-To-Flow-Sacred-Literature-of-the-World-by-Eknath-Easwaran.pdf
    • http://muicuiu.dumb1.com/4a09a08a04a06/THE-UNDELIVERED-SCORE-Letters-from-a-poet-s-heart-by-Selome-Flow-Wellington.pdf
    • http://muicuiu.dumb1.com/7a09a03a08a06a02/Golf-Flow-by-Gio-V

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