Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1b3a4afe5bf271e…

MALICIOUS

PDF

12.6 KB Created: 2019-05-03 03:33:41 +01:00 Authoring application: mPDF 5.7
MD5: e6ef1e40d99aaee875dc6ea7298afeaa SHA-1: 2750bbf50e8fbdfa053828e78cdf4b81a2241984 SHA-256: b1b3a4afe5bf271ebe2b3e86e3fa29e9c18aeccb7037d488aa4e6c2faa3a7cac
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external websites, identified by the PDF_SEO_LINK_FARM heuristic. While most individual URLs are marked as benign, the sheer volume and the ML classifier's high confidence score suggest a malicious intent, likely to drive traffic to potentially harmful sites or for SEO manipulation. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/4a01a00a02a02/Leif-Existence-Trilogy-2-5-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/1a07a02a05a03a09/Existence-Existence-Trilogy-1-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/4a05a08a09a07a07/Existence-Existence-Trilogy-1-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/3a05a04a02a05/Predestined-Existence-Trilogy-2-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/1a04a05a05a02a07/Until-the-End-Sea-Breeze-9-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/6a07a00a01a06/Just-for-Now-Sea-Breeze-4-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/2a06a07a09a01a02/After-the-Game-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/7a08a02a06/As-She-Fades-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/4a09a01a00a09a08/Because-of-Low-Sea-Breeze-2-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/6a07a09a05a09a06/Opnieuw-verliefd-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/8a02a09a08a05a09/Simple-Perfection-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/3a03a04a08a05/Never-Too-Far-Rosemary-Beach-2-Too-Far-2-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/3a00a07a02a05/The-Vincent-Brothers-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/6a09a07a02a07/Breathe-Sea-Breeze-1-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/3a05a06a08a01a03/When-I-m-Gone-Rosemary-Beach-10-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/6a04a01a04a04a09/Simple-Perfection-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/3a04a03a08a01/Breathe-Sea-Breeze-1-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/4a05a05a07a07/You-Were-Mine-Rosemary-Beach-9-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/7a04a03a03a00/Fallen-Too-Far-Too-Far-1-Rosemary-Beach-1-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/3a04a00a07a09/Forever-Too-Far-Rosemary-Beach-3-Too-Far-3-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/6a09a07a02a07/Breathe-

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