Malicious PDF — malware analysis report

Static analysis result for SHA-256 b73a79284abc6e2c…

MALICIOUS

PDF

13.7 KB Created: 2019-05-05 15:40:30 +01:00 Authoring application: mPDF 5.7
MD5: 8250650fb6146db3980c94ff3650f42b SHA-1: d8761ec0424b1d78add4f9e6c7bc86298e90a5eb SHA-256: b73a79284abc6e2c38c92e9b784143885688fd761f11d7451a843f76027770b3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files hosted on the domain 'muicuiu.dumb1.com'. 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 a high probability.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/4a07a02a06a02a03/Sin-Row-Sin-1-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/4a01a08a05a05a03/Half-a-Man-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/1a09a02a06a04a08/Don-t-Judge-a-Book-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/4a04a08a04a02a00/Bollywood-Dreams-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/9a02a06a01a05a06/Protecting-Kayden-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/2a03a04a08a06a02/Just-Desserts-Table-for-Two-1-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/4a07a02a06a09a01/Fade-to-Black-Clear-Water-Creek-Chronicles-3-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/4a07a02a06a02a08/Finding-Eden-Clear-Water-Creek-Chronicles-4-by-Scarlet-Blackwell.pdf
    • http://muicuiu.dumb1.com/2a01a02a02a09a00/Scarlet-and-the-Keepers-of-Light-Scarlet-Hopewell-1-by-Brandon-Charles-West.pdf
    • http://muicuiu.dumb1.com/2a04a00a01a06a02/Scarlet-and-the-Keepers-of-Light-Scarlet-Hopewell-1-by-Brandon-Charles-West.pdf
    • http://muicuiu.dumb1.com/3a09a00a05a04a03/Scarlet-and-the-Keepers-of-Light-Scarlet-Hopewell-1-by-Brandon-Charles-West.pdf
    • http://muicuiu.dumb1.com/2a06a02a09a05a02/Scarlet-Widow-Beatrice-Scarlet-1-by-Graham-Masterton.pdf
    • http://muicuiu.dumb1.com/1a01a00a08a07a06a00/While-Snowbound-by-Anna-J-McIntyre.pdf
    • http://muicuiu.dumb1.com/4a00a08a01a02a07/Snowbound-by-Blake-Crouch.pdf
    • http://muicuiu.dumb1.com/1a01a00a04a02/Snowbound-by-Janice-Kay-Johnson.pdf
    • http://muicuiu.dumb1.com/1a01a05a02a08a08/Snowbound-by-Bill-Pronzini.pdf
    • http://muicuiu.dumb1.com/2a04a02a06a06a07/Snowbound-With-Betsy-by-Carolyn-Haywood.pdf
    • http://muicuiu.dumb1.com/1a00a00a04a03a04a02/Snowbound-Seduction-by-Melissa-Schroeder.pdf
    • http://muicuiu.dumb1.com/2a02a05a01a03a05/Snowbound-with-a-Billionaire-Cowboy-by-Alexia-Wells.pdf
    • http://muicuiu.dumb1.com/3a07a03a04a00a03/Snowbound-in-Montana-Carrigans-of-the-Circle-C-4-by-C-J-Carmichael.pdf

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