Malicious PDF — malware analysis report

Static analysis result for SHA-256 29b6bfd5880c2d32…

MALICIOUS

PDF

18.1 KB Created: 2019-04-30 01:43:19 +01:00 Authoring application: mPDF 5.7
MD5: 8af96d5ee2372ea2d152d3bdbc9cc083 SHA-1: b26600e8170fe25713dbe37a41d37a531e643b5e SHA-256: 29b6bfd5880c2d32aeb14a50f7f66502cd50176976eee4ac792a31c845d70a61
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 as malicious and contains a large number of embedded links, identified as a PDF SEO link farm. While the document body is heavily obfuscated and unreadable, the presence of numerous links to external PDFs suggests an attempt to manipulate search engine results or distribute further malicious content. The primary attack pattern observed is the use of a PDF document to host a link farm, likely as a lure or redirection mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/4a00a09a02a01/I-Am-One-of-You-Forever-by-Fred-Chappell.pdf
    • http://muicuiu.dumb1.com/4a02a05a00a00a01/A-Shadow-All-of-Light-by-Fred-Chappell.pdf
    • http://muicuiu.dumb1.com/2a06a03a01a03/More-Shapes-Than-One-A-Book-of-Stories-by-Fred-Chappell.pdf
    • http://muicuiu.dumb1.com/5a07a08a03a02/Living-With-Fred-The-Fred-Books-2-by-Brad-Whittington.pdf
    • http://muicuiu.dumb1.com/7a03a03a09a03a01/Bataille-A-Critical-Reader-by-Fred-Botting.pdf
    • http://muicuiu.dumb1.com/1a06a07a07a09a05/The-Fat-of-The-Land-by-R-Allen-Chappell.pdf
    • http://muicuiu.dumb1.com/4a09a06a02a04a08/Joseph-and-Asenath-by-Alex-Chappell.pdf
    • http://muicuiu.dumb1.com/1a02a07a01a08a07/Narc-by-Crissa-Jean-Chappell.pdf
    • http://muicuiu.dumb1.com/4a00a08a04a01a03/Barbarians-of-the-Red-Planet-by-Gavin-Chappell.pdf
    • http://muicuiu.dumb1.com/1a00a05a02a02a05a01/Fred-Cusick-Voice-of-the-Bruins-60-Years-in-Boston-Sports-by-Fred-Cusick.pdf
    • http://muicuiu.dumb1.com/1a08a03a03a07a07/Vegetarian-Times-Everything-Vegan-by-Mary-Margaret-Chappell.pdf
    • http://muicuiu.dumb1.com/9a08a07a08a07/Dr-Fred-s-Healthcare-Rescue-The-Real-Solution-to-Healthcare-by-Fred-F-Hollingsworth.pdf
    • http://muicuiu.dumb1.com/1a00a01a09a08a07a02/Fred-Lowen-Dunera-Boy-Furniture-Designer-Artist-by-Fred-Lowen.pdf
    • http://muicuiu.dumb1.com/8a08a05a03a06a07/The-Persian-Blanket-The-Life-of-Janina-Milek-by-Timothy-Mark-Chappell.pdf
    • http://muicuiu.dumb1.com/5a00a07a08a02a08/Gendering-Government-Feminist-Engagement-with-the-State-in-Australia-and-Canada-by-Louise-Chappell.pdf
    • http://muicuiu.dumb1.com/5a01a06a09a08a01/Facing-the-Revocation-Huguenot-Families-Faith-and-the-King-s-Will-by-Carolyn-Chappell-Lougee.pdf
    • http://muicuiu.dumb1.com/1a07a02a06a04a00/The-Utterly-Uninteresting-and-Unadventurous-Tales-of-Fred-the-Vampire-Accountant-Fred-the-Vampire-Accountant-1-by-Drew-Hayes.pdf
    • http://muicuiu.dumb1.com/1a03a00a02a04a06/Fred-Herzog-Vancouver-Photographs-by-Fred-Herzog.pdf
    • http://muicuiu.dumb1.com/7a05a08a03a01a03/Fred-Manuele-on-Safety-Management-A-Collection-from-Professional-Safety-by-Fred-A-Manuele.pdf
    • http://muicuiu.dumb1.com/1a01a08a02a09a00/Fred-Herzog-Photographs-by-Fred-Herzog.pdf
    • http://muicuiu.dumb1.com/9a08a07a08a07/Dr-Fred-s-Healthcare-Rescue-The-Real-Solutio

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