Malicious PDF — malware analysis report

Static analysis result for SHA-256 b380a5b4dd1af40e…

MALICIOUS

PDF

18.7 KB Created: 2019-04-29 23:26:27 +01:00 Authoring application: mPDF 5.7
MD5: bf8206d6545238e33dcd2c802203e473 SHA-1: 7ca241c7aa6cf432933ca9b2eb53611d30008b5a SHA-256: b380a5b4dd1af40e0bba48cba0f978ff8eff554c682651ae7b4a55f460925f8c
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, forming a link farm. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. 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 0.9920

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/4a09a05a07a06a04/Cam-Jansen-and-the-Mystery-of-the-Television-Dog-Cam-Jansen-Mysteries-4-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/9a08a08a08a06a02/The-Mystery-of-the-Television-Dog-Cam-Jansen-Mysteries-4-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/7a09a09a01a01/The-Mystery-of-the-UFO-Cam-Jansen-Mysteries-2-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/2a00a08a05a02a09/The-Birthday-Mystery-Cam-Jansen-Mysteries-20-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/2a00a08a05a03a01/The-Mystery-of-the-Stolen-Diamonds-Cam-Jansen-Mysteries-1-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/4a05a02a02a01a01/The-Mystery-of-the-Gold-Coins-Cam-Jansen-Mysteries-5-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/1a08a01a01a09a02/Cam-Jansen-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/2a07a05a08a03/The-Babe-I-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/1a01a09a04a03a04a06/Kuriose-Kartentricks-by-David-Adler.pdf
    • http://muicuiu.dumb1.com/7a08a09a04a08a02/Lou-Gehrig-The-Luckiest-Man-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/5a00a06a08a06a06/A-Picture-Book-of-Sam-Houston-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/3a07a01a01a00a01/Animal-Parts-A-Peter-Romero-Mystery-Peter-Romero-Mysteries-Book-3-by-David-Knop.pdf
    • http://muicuiu.dumb1.com/1a00a08a05a05a02a03/A-Picture-Book-of-John-Hancock-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/8a06a03a02a05a01/A-Picture-Book-of-George-Washington-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/9a08a08a09a02a02/Adler-Speaks-The-Lectures-of-Alfred-Adler-by-Karen-A-Drescher.pdf
    • http://muicuiu.dumb1.com/8a03a07a02a01a01/Wild-Pill-Hickok-And-Other-Old-West-Riddles-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/1a01a01a09a00a03a03/Der-Prinz-Von-A-gyptenzwei-Ungleiche-Bru-der-In-Freundschaft-Verbunden-Vom-Schicksal-Entzweit-by-David-A-Adler.pdf
    • http://muicuiu.dumb1.com/7a05a02a02a08a02/Five-Television-Plays-A-Waitress-in-Yellowstone-or-Always-Tell-the-Truth-Bradford-The-Museum-of-Science-and-Industry-Story-A-Wasted-Weekend-We-Will-Take-You-There-by-David-Mamet.pdf
    • http://muicuiu.dumb1.com/9a08a08a09a01a02/Stella-Adler-on-Ibsen-Strindberg-and-Chekhov-by-Stella-Adler.pdf
    • http://muicuiu.dumb1.com/9a08a08a08a05a09/Jonathan-Adler-on-Happy-Chic-Colors-by-Jonathan-Adler.pdf
    • http://muicuiu.dumb1.com/3a07a01a01a00a01/Animal-Parts-A-Peter-Romero-Mys

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