Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f7076d34cfa6e6…

MALICIOUS

PDF

13.3 KB Created: 2019-04-30 05:19:37 +01:00 Authoring application: mPDF 5.7
MD5: 526c2e4add7e39a6d057c34226f2512e SHA-1: d58c9c18d030067510df37c9dd9605bdf2f67a35 SHA-256: 47f7076d34cfa6e6c819784a263001996ee723eb4289f03660890311a47ef40d
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, identified by the PDF_SEO_LINK_FARM heuristic. While the specific content of these linked PDFs is benign, the sheer volume and structure suggest a tactic to manipulate search engine results or to serve as a gateway to potentially malicious content. The ML_NYX_PDF_MALICIOUS classifier also flagged the document with high confidence. No scripts were extracted from this sample.

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/3a07a06a06a02a00/Sunshine-s-Savior-Brac-Pack-3-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/4a01a01a01a02a01/A-Brac-Pack-Crazy-Family-Christmas-Brac-Pack-24-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a07a01a06/Brac-Pack-Halloween-Murder-Mystery-Brac-Pack-32-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/3a07a08a08a01a07/Take-My-Hand-Brac-Pack-28-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/3a07a08a05a06a06/His-Little-Vampire-Brac-Pack-Next-Gen-10-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/3a07a08a05a06a04/Undeniably-His-Brac-Pack-Next-Gen-9-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/3a07a06a06a02a03/Nicholas-s-Wolf-Brac-Pack-14-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a08a03a03/Christmas-at-the-Lakelands-Brac-Pack-33-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/3a07a07a01a02a02/Tater-s-Bear-Brac-Pack-22-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a07a01a05/Dagon-s-Ride-Brac-Pack-19-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/3a02a01a09a03a05/Keata-s-Promise-Brac-Pack-7-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a07a01a04/Murphy-s-Madness-Brac-Pack-15-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/2a07a04a06a03a07/Hawk-s-Pretty-Baby-Brac-Pack-2-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/2a05a05a05a01a09/Hawk-s-Pretty-Baby-Brac-Pack-2-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a02a00a00a03a00/Brac-Pack-Volume-9-Carter-s-Tryck-amp-Joshua-s-Law-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a02a00a00a02a05/Brac-Pack-Volume-5-Loco-s-Love-amp-Lewis-s-Dream-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a09a04a04/Heart-of-Gold-Brac-Village-23-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a08a02a09/Jordan-s-Desires-Brac-Village-9-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a07a02a04/Heat-Rising-Brac-Village-5-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/8a01a09a07a02a02/Firehouse-Rescue-Brac-Village-15-by-Lynn-Hagen.pdf
    • http://muicuiu.dumb1.com/2a07a04a06a03

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