Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4d1b2abdd5ad311…

MALICIOUS

PDF

13.1 KB Created: 2019-05-07 04:35:04 +01:00 Authoring application: mPDF 5.7
MD5: fd717869708ec41ead68510e0d946eb4 SHA-1: 2b99cb07142a23b6a7bb5ac7f41bae58ec9e74a1 SHA-256: e4d1b2abdd5ad311043079545e99000bdbe953527917e991ca7b87bb507d6b0a
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the specific URLs appear benign, the sheer volume and structure suggest a malicious intent, possibly for SEO poisoning or to redirect users to malicious sites. The ML_NYX_PDF_MALICIOUS classifier also flagged this file with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/8a02a00a09a06a08/Mika-My-New-Life-Lotus-Lane-4-by-Kyla-May.pdf
    • http://muicuiu.dumb1.com/7a06a03a05a01a01/Lulu-My-Glamorous-Life-Lotus-Lane-3-by-Kyla-May.pdf
    • http://muicuiu.dumb1.com/5a06a04a05a01a01/Coco-My-Delicious-Life-Lotus-Lane-2-by-Kyla-May.pdf
    • http://muicuiu.dumb1.com/3a06a06a01a03a04/The-Renovation-by-Mika-Lane.pdf
    • http://muicuiu.dumb1.com/8a02a00a09a07a02/The-Renovation-by-Mika-Lane.pdf
    • http://muicuiu.dumb1.com/8a02a00a09a07a04/A-Story-of-Dakini-by-Mika-Lane.pdf
    • http://muicuiu.dumb1.com/3a06a06a00a04a07/Life-in-the-Fast-Lane-2nd-edition-Fast-Lane-Series-by-Michelle-McCorkle.pdf
    • http://muicuiu.dumb1.com/2a09a01a06a01a04/White-Lotus-White-Lotus-Trilogy-1-by-Libbie-Hawker.pdf
    • http://muicuiu.dumb1.com/1a00a01a06a08a06/Flashback-by-Kyla-LoPresti.pdf
    • http://muicuiu.dumb1.com/2a08a01a08a05a00/The-Wildest-Place-by-Kyla-Phillips.pdf
    • http://muicuiu.dumb1.com/1a04a05a09a02a06/Poet-Tongue-by-Kyla-Stan.pdf
    • http://muicuiu.dumb1.com/3a01a05a05a08a06/Life-in-the-Fat-Lane-by-Cherie-Bennett.pdf
    • http://muicuiu.dumb1.com/4a02a07a01a01a04/Life-in-the-Fat-Lane-by-Cherie-Bennett.pdf
    • http://muicuiu.dumb1.com/1a01a00a04a06a08/The-Lotus-Caretaker-The-Lotus-Caretaker-1-by-Emily-Kirby.pdf
    • http://muicuiu.dumb1.com/1a00a09a02a00a07/Lotus-Blood-Lotus-Blood-1-by-Dean-Norton.pdf
    • http://muicuiu.dumb1.com/9a08a03a06a05/LIFE-IN-THE-HARSH-LANE-by-Thomas-Appleby.pdf
    • http://muicuiu.dumb1.com/5a02a03a05a08a02/Temp-Life-in-the-Stagnant-Lane-by-Scott-Nagele.pdf
    • http://muicuiu.dumb1.com/4a09a09a07a01a07/Life-Ascending-The-Ten-Great-Inventions-of-Evolution-by-Nick-Lane.pdf
    • http://muicuiu.dumb1.com/1a04a00a04a05a07/Life-Ascending-The-Ten-Great-Inventions-of-Evolution-by-Nick-Lane.pdf
    • http://muicuiu.dumb1.com/3a02a02a01a03a03/Simoni-s-Gift-A-Story-about-Your-Purpose-in-Life-by-Kara-Lane.pdf
    • http://muicuiu.dumb1.com/1a00a09a02a00a07/Lotus-Bl

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