Malicious PDF — malware analysis report

Static analysis result for SHA-256 c940286dcaf548fe…

MALICIOUS

PDF

12.8 KB Created: 2019-05-02 01:11:58 +01:00 Authoring application: mPDF 5.7
MD5: a0c5cfe063efe85c01d3b758cb9add57 SHA-1: f651b3844e0dd71e9b759cd2728c633d68066a1f SHA-256: c940286dcaf548fe892137e4e2d430bc18430a8e2d2c9ecd69a988824aff688d
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, as detected by the PDF_SEO_LINK_FARM heuristic. These links likely serve to direct users to malicious websites, potentially for phishing or malware distribution. The ML classifier also flagged the document as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8905

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/1a09a05a01a08/Triptych-by-J-M-Frey.pdf
    • http://muicuiu.dumb1.com/3a03a01a02a06a07/Little-Complications-by-Lili-Frey.pdf
    • http://muicuiu.dumb1.com/1a00a05a01a09a04a07/Zurich-by-Kummerly-Frey.pdf
    • http://muicuiu.dumb1.com/9a01a00a00a00a00/The-Legacy-by-Stephen-W-Frey.pdf
    • http://muicuiu.dumb1.com/9a00a09a09a09a03/Frey-God-of-the-World-by-Ann-Gr-a-Sheffield.pdf
    • http://muicuiu.dumb1.com/1a01a04a06a04a03a00/Neues-Ohr-Fur-Marylin-by-Gabriela-Frey.pdf
    • http://muicuiu.dumb1.com/9a01a00a00a04a00/Trust-Fund-by-Stephen-W-Frey.pdf
    • http://muicuiu.dumb1.com/1a01a00a04a08a01/The-Calling-Endgame-1-by-James-Frey.pdf
    • http://muicuiu.dumb1.com/1a00a05a00a04a00/My-Friend-Leonard-by-James-Frey.pdf
    • http://muicuiu.dumb1.com/4a01a04a06a00a04/Heaven-s-Fury-by-Stephen-W-Frey.pdf
    • http://muicuiu.dumb1.com/9a06a09a07a03a09/Siebzehn-Dinge-by-Eleonore-Frey.pdf
    • http://muicuiu.dumb1.com/1a00a07a07a06a05a07/Schmerz-Und-Schmerzbehandlung-Heute-by-Rudolf-Frey.pdf
    • http://muicuiu.dumb1.com/4a06a06a09/Rules-of-the-Game-Endgame-3-by-James-Frey.pdf
    • http://muicuiu.dumb1.com/1a08a04a05a08a03/Frey-Stone-Society-4-by-Faith-Gibson.pdf
    • http://muicuiu.dumb1.com/9a00a09a09a03a02/Arctic-Fire-Red-Cell-Trilogy-1-by-Stephen-W-Frey.pdf
    • http://muicuiu.dumb1.com/2a00a09a07a01a01/History-Alive-The-Ancient-World-by-Wendy-Frey.pdf
    • http://muicuiu.dumb1.com/1a04a02a04a06a06/The-Power-Broker-Christian-Gillette-3-by-Stephen-W-Frey.pdf
    • http://muicuiu.dumb1.com/9a00a09a08a08a03/The-Loch-of-the-Dead-Frey-amp-McGray-4-by-Oscar-de-Muriel.pdf
    • http://muicuiu.dumb1.com/9a01a00a00a03a06/Existence-Endgame-The-Training-Diaries-3-by-James-Frey.pdf
    • http://muicuiu.dumb1.com/9a00a09a09a02a08/Venom-and-Steel-The-Frey-Saga-4-by-Melissa-Wright.pdf
    • http://muicuiu.dumb1.com/1a08a04a05a08a03/Frey-Stone-Society-

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