Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aa46fee3097578e…

MALICIOUS

PDF

12.0 KB Created: 2019-04-30 05:45:21 +01:00 Authoring application: mPDF 5.7
MD5: 20477a34e6bbdf7feee4d0038e87918d SHA-1: 65fb4563beba64cae4a92585635f0b2ddc595075 SHA-256: 1aa46fee3097578e11f8e13338fc215df96266aeccf5a30d8c6249eec547d5a1
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a large number of embedded links, characteristic of a link farm or a phishing lure. The heuristic PDF_SEO_LINK_FARM specifically identifies this pattern, indicating the document's primary purpose is to redirect users to external content. While the specific destination of these links is marked as benign, the sheer volume and structure suggest a malicious intent to distribute further payloads or lead users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8737

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/6a09a02a02a03a03/Robert-of-Melun-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/1a01a06a08a06a05a04/Robert-Maxwell-1st-Earl-of-Farnham-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/1a00a09a04a04a02a02/Greystones-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/9a09a03a09a05a04/Kobra-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/5a06a06a05a06a05/The-Decalogue-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/8a03a05a03a03a08/Son-Pari-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/8a00a04a07a02a07/Son-of-Maryam-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/6a07a04a00a01a07/The-Libertines-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/9a03a02a08a08a05/The-Silmarillion-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/9a04a02a06a06a00/Nalle-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/1a00a05a08a00a06a05/The-Rasmus-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/7a00a08a08a03a03/Souterrain-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/7a01a09a04a01a01/Minuscule-801-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/7a02a03a08a08a01/The-Dickies-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/5a09a02a02a01a02/DuPont-Circle-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/9a00a00a02a08a09/Krishna-Sinha-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/1a01a02a09a08a03a02/Kevin-McNaughton-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/1a00a07a07a07a07a02/Frans-Wildenhain-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/7a00a01a05a06a09/Mabel-Normand-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/9a09a06a05a01a07/Tobias-Pfl-ger-by-Jesse-Russell.pdf

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