Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ba05e15e3b8d1e0…

MALICIOUS

PDF

17.3 KB Created: 2019-04-30 03:30:16 +01:00 Authoring application: mPDF 5.7
MD5: 93cfdbd72823a0c870141fba78d3c68f SHA-1: 04c76bca354d86d1229731c32e42b215f3c5d48d SHA-256: 9ba05e15e3b8d1e0ab731936450c6a6f89a2765332596b481c5223a65b6a4374
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents, hosted on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a redirection mechanism to potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/7a01a01a09a06a04/The-Day-Of-The-Triffids-by-John-Wyndham.pdf
    • http://muicuiu.dumb1.com/5a02a08a01a02/The-Day-of-the-Triffids-by-John-Wyndham.pdf
    • http://muicuiu.dumb1.com/3a07a07a02a07a02/The-Day-of-the-Triffids-by-John-Wyndham.pdf
    • http://muicuiu.dumb1.com/1a00a06a08a02a03/The-Day-of-the-Triffids-by-John-Wyndham.pdf
    • http://muicuiu.dumb1.com/7a03a05a08a01a08/THE-AUTOBIOGRAPHY-OF-ALICE-B-TOKLAS-Modern-Classics-Series-Glance-at-the-Parisian-early-20th-century-avant-garde-One-of-the-greatest-nonfiction-books-of-the-20th-century-by-Gertrude-Stein.pdf
    • http://muicuiu.dumb1.com/7a04a06a05a02a08/East-of-Eden-20th-Century-Classics-by-John-Steinbeck.pdf
    • http://muicuiu.dumb1.com/8a04a01a09a00a07/Great-Speeches-of-the-20th-Century-by-Bob-Blaisdell.pdf
    • http://muicuiu.dumb1.com/1a00a03a07a03a05a07/TASCHEN-365-Day-by-Day-Fashion-Ads-of-the-20th-Century-by-Jim-Heimann.pdf
    • http://muicuiu.dumb1.com/7a08a00a04a05/The-20th-Century-Art-Book-by-Phaidon-Press.pdf
    • http://muicuiu.dumb1.com/7a06a08a09a06a06/Zen-Buddhism-in-the-20th-Century-by-Heinrich-Dumoulin.pdf
    • http://muicuiu.dumb1.com/1a01a09a02a09a03a04/20th-Century-Ceramics-by-Edmund-de-Waal.pdf
    • http://muicuiu.dumb1.com/6a02a04a01a03a07/Ten-Portraits-of-Jews-of-the-20th-Century-by-Andy-Warhol.pdf
    • http://muicuiu.dumb1.com/8a04a01a07a09a00/Orlando-20th-Century-Fiction-by-Virginia-Woolf.pdf
    • http://muicuiu.dumb1.com/8a04a01a07a08a07/A-Suitable-Boy--20th-century-edition-by-Vikram-Seth.pdf
    • http://muicuiu.dumb1.com/1a00a06a00a04a06a02/A-History-of-Fashion-in-the-20th-Century-by-Gertrud-Lehnert.pdf
    • http://muicuiu.dumb1.com/8a04a01a08a03a02/The-Waves-20th-Century-Fiction-by-Virginia-Woolf.pdf
    • http://muicuiu.dumb1.com/5a01a09a05a02a00/Lester-Higata-s-20th-Century-by-Barbara-Hamby.pdf
    • http://muicuiu.dumb1.com/8a04a01a07a08a01/Modern-Women-20th-Century-4-by-Ruth-Harris.pdf
    • http://muicuiu.dumb1.com/1a00a07a02a02a04a03/Illegal-Harmonies-Music-in-the-20th-Century-by-Andrew-Ford.pdf
    • http://muicuiu.dumb1.com/1a00a02a07a06a08a01/20th-Century-Fashion-100-Years-of-Apparel-Ads-by-Alison-A-Nieder.pdf
    • http://muicuiu.dumb1.com/8a04a01a09a00a07/Grea

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