Malicious PDF — malware analysis report

Static analysis result for SHA-256 50794ff34d41d35e…

MALICIOUS

PDF

17.9 KB Created: 2019-04-30 03:39:47 +01:00 Authoring application: mPDF 5.7
MD5: 33790918a649c1961b1a83a89d9d227c SHA-1: 3512ae0cab3a512eb2420e8d7e069e157ea8b3f1 SHA-256: 50794ff34d41d35ea2754a86940aab51fc7d918298583ec4e8076c84c47fe059
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. While no scripts were extracted, the PDF structure and the sheer volume of links to a single domain suggest a coordinated effort to drive traffic or distribute further payloads. The domain 'muicuiu.dumb1.com' is highly suspicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9344

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/1a00a08a08a09a06a03/Gerry-Tales-How-I-Lived-Happily-Ever-After-Despite-Stabbing-Myself-in-the-Back-Scalding-My-Cojones-and-Really-Pissing-Off-My-Wife-During-Childbirth-by-Gerry-Boylan.pdf
    • http://muicuiu.dumb1.com/3a08a04a08a01a05/In-the-Name-of-the-Father-The-Story-of-Gerry-Conlon-of-the-Guildford-Four-by-Gerry-Conlon.pdf
    • http://muicuiu.dumb1.com/5a08a03a00a01a05/They-Lived-Happily-Ever-After-by-Leslie-Cameron-Bandler.pdf
    • http://muicuiu.dumb1.com/2a04a04a01a09/Elmer-by-Gerry-Alanguilan.pdf
    • http://muicuiu.dumb1.com/4a05a03a04a02a07/Wasted-by-Gerry-Alanguilan.pdf
    • http://muicuiu.dumb1.com/1a00a05a09a01a07a07/Zarathustra-in-Love-by-Gerry-LaFemina.pdf
    • http://muicuiu.dumb1.com/2a04a00a08a09/Carnage-Volume-1-The-One-That-Got-Away-by-Gerry-Conway.pdf
    • http://muicuiu.dumb1.com/1a09a03a04a04a02/Essential-Ms-Marvel-Vol-1-by-Gerry-Conway.pdf
    • http://muicuiu.dumb1.com/5a03a01/Hawkeye-vs-Deadpool-by-Gerry-Duggan.pdf
    • http://muicuiu.dumb1.com/3a02a01a08a01a05/Proved-Innocent-by-Gerry-Conlon.pdf
    • http://muicuiu.dumb1.com/8a00a09a06a08a07/Batman-1940-2011-306-by-Gerry-Conway.pdf
    • http://muicuiu.dumb1.com/1a00a08a06a05a04/Phoenix-Angel-Shardwell-1-by-Amanda-Gerry.pdf
    • http://muicuiu.dumb1.com/8a03a07a04a05a03/Observing-Variable-Stars-by-Gerry-A-Good.pdf
    • http://muicuiu.dumb1.com/8a00a09a07a07a01/The-New-Gods-1971-1978-13-by-Gerry-Conway.pdf
    • http://muicuiu.dumb1.com/9a07a02a07a09a09/Pool-Player-s-Edge-by-Gerry-Kanov.pdf
    • http://muicuiu.dumb1.com/1a01a09a00a01a09a09/Santa-Claus-A-Biography-by-Gerry-Bowler.pdf
    • http://muicuiu.dumb1.com/1a01a05a06a04a01/Child-of-Stone-Shardwell-3-by-Amanda-Gerry.pdf
    • http://muicuiu.dumb1.com/5a06a01a01a09a09/Quest-for-the-Lost-Treasure-by-Gerry-Gaston.pdf
    • http://muicuiu.dumb1.com/2a07a09a07a07a01/The-Sheriff-A-Detective-s-Story-by-Gerry-O-39-Carroll.pdf
    • http://muicuiu.dumb1.com/2a05a01a02a04a04/The-Tomb-of-Dracula-Omnibus-Vol-1-by-Gerry-Conway.pdf
    • http://muicuiu.dumb1.com/2a04a00a08a09/Carnage-Volume-1-The-One-That-Got-Away-by-Gerry-Con