Malicious PDF — malware analysis report

Static analysis result for SHA-256 c11cc31e1f432009…

MALICIOUS

PDF

15.2 KB Created: 2019-04-30 07:57:13 +01:00 Authoring application: mPDF 5.7
MD5: c88d3c120181881b1c5a3b868f64a3fb SHA-1: c4f5ef1c2a8deb722a8cefa7a436472c48b449c6 SHA-256: c11cc31e1f432009518c4c92a2c2680acb134ea5446bd26105817efd3b6fe2d2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of embedded links to external PDF files, a technique often used for SEO poisoning or to direct users to malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted, but the PDF structure itself is indicative of a lure to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/2a03a04a03a02a02/Good-Grief-Charlie-Brown-Peanuts-Coronet-12-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a03a06a03a05a08/What-Next-Charlie-Brown-Peanuts-Coronet-26-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a04a02a08a07a00/Let-s-Face-It-Charlie-Brown-Peanuts-Coronet-9-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a06a03a07a02a05/Good-Ol-Snoopy-Peanuts-Coronet-3-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a09a08a06a04a03/Wonderful-World-of-Peanuts-Peanuts-Coronet-24-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/5a09a05a03a05a06/It-s-Chow-Time-Snoopy-Peanuts-Coronet-68-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/8a07a01a06a02a05/Good-Grief-Story-of-Charles-M-Schulz-by-Rheta-Grimsley-Johnson.pdf
    • http://muicuiu.dumb1.com/8a07a01a08a06a01/Charlie-Brown-and-Charles-Schulz-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a05a05a05a09a07/It-s-the-Great-Pumpkin-Charlie-Brown-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/1a01a06a09a03a06a03/It-s-the-Easter-Beagle-Charlie-Brown-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a03a08a09a06/The-Complete-Peanuts-Vol-3-1955-1956-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/4a09a05a07a05a07/Let-s-Dance-Snoopy-65-Years-of-Peanuts-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/8a07a01a08a09a02/The-Complete-Peanuts-Vol-19-1987-1988-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/1a01a01a08a00a02a00/The-Complete-Peanuts-1955-1958-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/8a04a04a00a01a07/The-Complete-Peanuts-Vol-9-1967-1968-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/8a07a01a09a00a02/The-Complete-Peanuts-Vol-16-1981-1982-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a09a07a04a09a07/The-Complete-Peanuts-Vol-6-1961-1962-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/8a04a04a00a02a02/The-Complete-Peanuts-1967-1970-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/4a01a08a01a03/The-Complete-Peanuts-Vol-5-1959-1960-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/7a05a09a01a08a09/The-Complete-Peanuts-Vol-22-1993-1994-by-Charles-M-Schulz.pdf
    • http://muicuiu.dumb1.com/2a05a05a05a09a07/It-s-the-Great-Pumpkin-Charlie-Brown-by-Charles-M-Schu

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