Malicious PDF — malware analysis report

Static analysis result for SHA-256 42fe5ec8d4acf585…

MALICIOUS

PDF

13.1 KB Created: 2019-04-30 05:26:24 +01:00 Authoring application: mPDF 5.7
MD5: 43e5ef8398891e0ed678a52b9b56204f SHA-1: 87aec843375f4061e02241bfe69278639092016a SHA-256: 42fe5ec8d4acf58556cbf9b9d0b7a42bc9aa3ea8b6904db88993aa6667ab5311
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links are presented as PDF documents, likely to deceive users into downloading malicious content. The ML classifier also flagged the document as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

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/3a02a03a07a08a07/The-Autobiography-of-Malcolm-X-As-Told-to-Alex-Haley-by-Malcolm-X.pdf
    • http://muicuiu.dumb1.com/5a03a01a07a09a03/The-Autobiography-Of-Malcolm-X-by-Alex-Haley.pdf
    • http://muicuiu.dumb1.com/3a07a02a07a01a03/Me-Mam-Me-Dad-Me-by-Malcolm-Duffy.pdf
    • http://muicuiu.dumb1.com/5a03a09a01a07a02/The-Sun-Singer-by-Malcolm-R-Campbell.pdf
    • http://muicuiu.dumb1.com/3a03a05a00a07/Under-the-Volcano-by-Malcolm-Lowry.pdf
    • http://muicuiu.dumb1.com/4a04a07a04a03a03/Clone-by-Malcolm-Rose.pdf
    • http://muicuiu.dumb1.com/6a00a04a06a09a09/THE-DREAMCATCHERS-by-Malcolm-Hayes.pdf
    • http://muicuiu.dumb1.com/2a05a01a02a00a02/They-Come-in-All-Colors-A-Novel-by-Malcolm-Hansen.pdf
    • http://muicuiu.dumb1.com/1a00a08a00a09a03/Jamaica-by-Malcolm-Knox.pdf
    • http://muicuiu.dumb1.com/7a08a09a07a06a05/It-Never-Was-Worthwhile-by-Malcolm-Havard.pdf
    • http://muicuiu.dumb1.com/7a03a06a04a07a04/Ultramarine-by-Malcolm-Lowry.pdf
    • http://muicuiu.dumb1.com/9a02a02a03a04/Amok-by-Dominica-Malcolm.pdf
    • http://muicuiu.dumb1.com/1a00a07a08a01a07/Bradman-s-War-by-Malcolm-Knox.pdf
    • http://muicuiu.dumb1.com/7a02a02a03a08a03/I-followed-my-man-to-Lausanne-by-Moira-M-Malcolm.pdf
    • http://muicuiu.dumb1.com/3a01a02a06a01a08/What-the-Dog-Saw-And-Other-Adventures-by-Malcolm-Gladwell.pdf
    • http://muicuiu.dumb1.com/8a09a09a08a02/The-History-Man-by-Malcolm-Bradbury.pdf
    • http://muicuiu.dumb1.com/7a02a02a08a06a00/Brahms-by-Malcolm-MacDonald.pdf
    • http://muicuiu.dumb1.com/2a01a04a07a09a07/Under-the-Volcano-by-Malcolm-Lowry.pdf
    • http://muicuiu.dumb1.com/4a04a08a04a06a01/Under-the-Volcano-by-Malcolm-Lowry.pdf
    • http://muicuiu.dumb1.com/7a00a07a00a06a06/The-Alleluia-Affair-by-Malcolm-Boyd.pdf

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