Malicious PDF — malware analysis report

Static analysis result for SHA-256 e250bb5912ef6ffa…

MALICIOUS

PDF

21.1 KB Created: 2019-04-30 04:01:09 +01:00 Authoring application: mPDF 5.7
MD5: 7b7ee31011c5f1d0113afc44d2e1aac6 SHA-1: 8cc5a3e629fc79a16f6b19408659f5b75cb3fa9e SHA-256: e250bb5912ef6ffa6aa4d64eac2fe2fb07530b463f00d273521b7a9104b0c929
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

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 link farm suggest a delivery mechanism for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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/4a07a05a05a01a05/The-Perfect-Pitch-The-Biography-of-Roger-Owens-the-Famous-Peanut-Man-at-Dodger-Stadium-by-Daniel-S-Green.pdf
    • http://muicuiu.dumb1.com/1a01a09a07a03a07a03/Dodger-of-the-Dials-Dodger-2-by-James-Benmore.pdf
    • http://muicuiu.dumb1.com/3a01a05a09a08a09/Pitch-Perfect-The-Quest-for-Collegiate-A-Cappella-Glory-by-Mickey-Rapkin.pdf
    • http://muicuiu.dumb1.com/1a00a08a05a08a02a03/Peanut-Gets-a-Job-Peanut-the-Mini-Horse-Book-3-by-Holly-Hunstad-Asbridge.pdf
    • http://muicuiu.dumb1.com/2a02a06a02a09a02/E-mc-A-Biography-of-the-World-s-Most-Famous-Equation-by-David-Bodanis.pdf
    • http://muicuiu.dumb1.com/1a07a08a01a04a01/The-World-s-Most-Famous-Ghosts-by-Daniel-Cohen.pdf
    • http://muicuiu.dumb1.com/6a00a09a09a02a05/Unaccustomed-to-Fear-A-Biography-of-the-Late-General-Roy-S-Geiger-by-Roger-Willock.pdf
    • http://muicuiu.dumb1.com/8a09a06a09a04a09/Leo-Strauss-An-Intellectual-Biography-by-Daniel-Tanguay.pdf
    • http://muicuiu.dumb1.com/1a01a03a04a09a05a03/A-Perfect-Rescue-Park-City-Firefighter-Romance-7-by-Daniel-Banner.pdf
    • http://muicuiu.dumb1.com/8a05a01a08a07a05/The-Ultimate-Green-Tea-Guide-History-Green-Tea-Benefits-Green-Tea-Types-Best-Brewing-Practices-and-Tasty-Green-Tea-Recipes-for-Everyone-by-Ayumi-Furuya.pdf
    • http://muicuiu.dumb1.com/1a01a04a07a01a06a05/The-Valley-s-Edge-A-Year-with-the-Pashtuns-in-the-Heartland-of-the-Taliban-by-Daniel-R-Green.pdf
    • http://muicuiu.dumb1.com/4a07a06a04a07a00/Biography-of-Walt-Disney-The-Inspirational-Life-Story-of-Walt-Disney---The-Man-Behind-quot-Disneyland-quot-Biographies-of-Famous-People-Series-by-Steve-Walters.pdf
    • http://muicuiu.dumb1.com/1a00a05a06a07a03a01/The-Time-Machine-the-Original-Novel-Annotated-Masterpiece-Collection-The-Time-Machine-H-G-Wells-Famous-Quotes-Book-List-and-Biography-by-H-G-Wells.pdf
    • http://muicuiu.dumb1.com/3a08a03a08a06a00/Absolutely-Famous-Famous-2-by-Heather-C-Leigh.pdf
    • http://muicuiu.dumb1.com/3a02a03a09a03a08/Dodger-by-Terry-Pratchett.pdf
    • http://muicuiu.dumb1.com/4a02a06a04a09a06/The-Artful-Dodger-by-Tommy-Lasorda.pdf
    • http://muicuiu.dumb1.com/4a02a01a07a02/Relatively-Famous-Famous-1-by-Heather-C-Leigh.pdf
    • http://muicuiu.dumb1.com/6a02a04a09a09a07/More-Than-Famous-Famous-2-by-Kahlen-Aymes.pdf
    • http://muicuiu.dumb1.com/3a08a03a08a05a08/Relatively-Famous-Famous-1-by-Heather-C-Leigh.pdf
    • http://muicuiu.dumb1.com/4a02a06a03a00a08/Dodger-Dogs-to-Fenway-Franks-And-All-the-Wieners-in-Between-by-Bob-Wood.pdf
    • http://muicuiu.dumb1.com/1a01a03a04

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