Malicious PDF — malware analysis report

Static analysis result for SHA-256 89ea3840518615a8…

MALICIOUS

PDF

18.0 KB Created: 2019-04-30 02:27:55 +01:00 Authoring application: mPDF 5.7
MD5: 32f9e4e4d62303092dd4782ff0ad7c6e SHA-1: 9cf3fd2b2dc31a6056286dacaac7200d159f494c SHA-256: 89ea3840518615a82084dde64412b89a95bc750d6914619551a7f128b944c7b3
90 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier with high confidence and exhibits characteristics of a link farm. The document body contains numerous embedded URLs pointing to external PDF files, likely intended to drive traffic or distribute further malicious content. The primary attack pattern involves leveraging these embedded links to redirect the user.

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/6a07a04a08a04a06/Serial-Killers-The-World-s-Most-Evil-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/6a07a04a09a03a01/Serial-Killers-Butchers-amp-Cannibals-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/5a09a01a08a00a05/The-Killer-Book-of-Serial-Killers-Incredible-Stories-Facts-and-Trivia-from-the-World-of-Serial-Killers-by-Tom-Philbin.pdf
    • http://muicuiu.dumb1.com/5a09a01a08a00a02/The-Big-Book-of-Serial-Killers-150-Serial-Killer-Files-of-the-World-s-Worst-Murderers-by-Jack-Rosewood.pdf
    • http://muicuiu.dumb1.com/6a05a04a04a04/The-Serial-Killer-Books-15-Famous-Serial-Killers-True-Crime-Stories-That-Shocked-The-World-by-Jack-Rosewood.pdf
    • http://muicuiu.dumb1.com/6a07a04a09a09a01/Ancient-England-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/8a02a01a06a05/The-World-s-Most-Infamous-Murders-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/6a07a05a00a05a02/Mystery-Intrigue-and-the-Supernatural-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/6a07a04a08a04a04/The-World-s-Greatest-UFO-Mysteries-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/6a07a05a00a00a00/The-World-s-Greatest-Mistakes-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/2a03a03a02a07a00/The-Worlds-Greatest-Unsolved-Crimes-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/6a07a05a00a06a02/Pictorial-History-of-Adolf-Hitler-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/6a07a05a00a05a09/A-Pictorial-History-of-Joseph-Stalin-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/6a07a04a09a04a01/The-World-s-Greatest-Scandals-of-the-20th-Century-by-Nigel-Blundell.pdf
    • http://muicuiu.dumb1.com/2a07a09a04a06a04/Serial-Killers-by-Time-Life-Books.pdf
    • http://muicuiu.dumb1.com/7a03a05a08a04a01/Naked-Serial-Killers-in-Volkswagens-by-Catfish-McDaris.pdf
    • http://muicuiu.dumb1.com/5a08a08a07a00a08/Profileuse-Sur-la-trace-des-serial-killers-by-St-phane-Bourgoin.pdf
    • http://muicuiu.dumb1.com/2a01a05a06a01a00/M-is-for-Munchers-The-Serial-Killers-Next-Door-by-Alexandria-Constantinova-Szeman.pdf
    • http://muicuiu.dumb1.com/8a06a03a09a03a07/Only-The-Devil-Knows---Criminal-Delights-Serial-Killers-by-Katze-Snow.pdf
    • http://muicuiu.dumb1.com/5a09a01a07a04a04/The-Profiler-My-Life-Hunting-Serial-Killers-and-Psychopaths-by-Pat-Brown.pdf
    • http://muicuiu.dumb1.com/6a05a04a04a04/The-Serial-Killer-Books-15-Famous-Ser

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