Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1679ba9e8621722…

MALICIOUS

PDF

16.4 KB Created: 2019-04-29 23:31:27 +01:00 Authoring application: mPDF 5.7
MD5: 7ecf66b62a6640bdbd31610e89490bde SHA-1: d2c424e0ea2c99d77338fc1910c77fa2c21cdcf6 SHA-256: a1679ba9e8621722c7c896f74126ad181ff77baff4b356116c16de78e7fab617
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDFs, a technique often used for SEO poisoning or to direct users to malicious content. The ML classifier strongly indicated maliciousness. The primary attack pattern involves luring the user to a website via these links, likely to host further malicious content or phishing pages.

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/1a01a07a07a01a08a04/The-Strain-Panini-Suspense-1-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/1a00a08a07a05/The-Strain-The-Strain-Trilogy-1-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/4a08a05a03a01a07/The-Strain-The-Strain-Trilogy-1-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/4a06a06a04a01/The-Fall-The-Strain-Trilogy-2-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/4a08a02a09a01a00/The-Fall-The-Strain-Trilogy-2-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/5a02a03a06a02a09/De-Meester-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/8a06a02a08a07a02/Pan-s-Labyrinth-The-Labyrinth-of-the-Faun-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/3a06a01a09a09a03/Strain-Strain-1-by-Amelia-C-Gormley.pdf
    • http://muicuiu.dumb1.com/5a05a00a06a09a07/Strain-of-Resistance-Strain-of-Resistance-1-by-Michelle-Bryan.pdf
    • http://muicuiu.dumb1.com/5a00a08a07a00a04/Tic-Tac-Tiempos-Modernos-by-Suso-de-Toro.pdf
    • http://muicuiu.dumb1.com/5a03a04a01a02a07/E-Angel-Di-San-Kristof-by-Guillermo-E-Rosario.pdf
    • http://muicuiu.dumb1.com/9a01a04a04a03a03/Citizen-Su-rez-by-Guillermo-Verdecchia.pdf
    • http://muicuiu.dumb1.com/9a05a00a04a01/Blubber-Island-by-Guillermo-Galvan.pdf
    • http://muicuiu.dumb1.com/3a09a05a01a06a06/Clean-Mystery-and-Suspense-A-SEAL-to-Protect-the-President-Clean-Navy-SEAL-Suspense-Romance-by-Amy-Coleman.pdf
    • http://muicuiu.dumb1.com/1a00a04a04a05a00a04/Smashing-Node-Js-JavaScript-Everywhere-by-Guillermo-Rauch.pdf
    • http://muicuiu.dumb1.com/6a02a02a00a04a01/Norodom-Sihanouk-y-el-Hermano-N-mero-Zero-La-tragedia-de-Kampuchea-Democr-tica-by-Guillermo-Garcia.pdf
    • http://muicuiu.dumb1.com/1a03a04a08a04a00/THE-LAZARUS-STRAIN-by-Ken-McClure.pdf
    • http://muicuiu.dumb1.com/1a00a05a09a06a06a02/Generation-X-86-by-Christina-Strain.pdf
    • http://muicuiu.dumb1.com/1a06a03a07a02a08/The-Methuselah-Strain-by-Stuart-Aken.pdf
    • http://muicuiu.dumb1.com/3a05a09a03a04a03/Survivors-Morningstar-Strain-3-by-Z-A-Recht.pdf
    • http://muicuiu.dumb1.com/9a01a04a04a03a03/Citizen-Su-rez-by-Guillermo-Ve

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