Malicious PDF — malware analysis report

Static analysis result for SHA-256 46094c5468b1fa07…

MALICIOUS

PDF

15.5 KB Created: 2019-04-30 05:11:42 +01:00 Authoring application: mPDF 5.7
MD5: a4140a0a108c5f8b05c1bfe8c26da730 SHA-1: b72e43a6903b8890ae0cbd8987dd95c981669427 SHA-256: 46094c5468b1fa07ad164d97db3167877760f2df211f21f753570263f1af380f
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic 'PDF_SEO_LINK_FARM' indicate a malicious intent to manipulate search engine results or redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, limiting further analysis of direct payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/3a01a08a00a04a01/Reluctant-Runaway-To-Catch-a-Thief-2-by-Jill-Elizabeth-Nelson.pdf
    • http://muicuiu.dumb1.com/4a06a05a08a09a03/To-Catch-a-Thief-Midnight-Dancer-2-by-Elizabeth-Lindsay.pdf
    • http://muicuiu.dumb1.com/2a01a07a06a04a05/To-Kiss-a-Thief-Runaway-Desires-1-by-Susanna-Craig.pdf
    • http://muicuiu.dumb1.com/3a09a03a07a01a02/Catch-an-Honest-Thief-by-Maria-E-Schneider.pdf
    • http://muicuiu.dumb1.com/2a00a08a01a09a09/Let-s-Get-It-On-A-Novel-by-Jill-Nelson.pdf
    • http://muicuiu.dumb1.com/2a06a03a09a00a06/The-Runaway-Wife-by-Elizabeth-Birkelund.pdf
    • http://muicuiu.dumb1.com/3a04a06a05a03/Volunteer-Slavery-My-Authentic-Negro-Experience-by-Jill-Nelson.pdf
    • http://muicuiu.dumb1.com/3a08a09a08a01a04/Reluctant-Match-Menage-com-5-by-Peyton-Elizabeth.pdf
    • http://muicuiu.dumb1.com/3a09a09a08a06a00/Runaway-Home-The-Alice-and-Jerry-Books-by-Elizabeth-Coatsworth.pdf
    • http://muicuiu.dumb1.com/3a02a09a07a00a08/The-Nesting-Instinct-Reluctant-Grooms-4-by-Elizabeth-August.pdf
    • http://muicuiu.dumb1.com/3a03a01a01a03a09/The-Pearl-Thief-by-Elizabeth-E-Wein.pdf
    • http://muicuiu.dumb1.com/8a05a04a09a00a01/Forbidden-Desire-Rusty-Quirke-2-by-Elizabeth-Nelson.pdf
    • http://muicuiu.dumb1.com/3a05a06a02a04a04/The-Runaway-amp-The-Russian-The-Runaway-Trilogy-Book-1-by-Helen-Bright.pdf
    • http://muicuiu.dumb1.com/9a04a00a01a04a08/Runaway-Heart-Runaway-hearts-1-by-Harper-Logan.pdf
    • http://muicuiu.dumb1.com/4a03a02a00a05a09/Elizabeth-Bathory-The-Blood-Countess-by-Jill-Keppeler.pdf
    • http://muicuiu.dumb1.com/4a04a03a03a09a01/Catch-As-Catch-Can-The-Collected-Stories-and-Other-Writings-by-Joseph-Heller.pdf
    • http://muicuiu.dumb1.com/1a06a00a05a01/Catch-22-Catch-22-1-by-Joseph-Heller.pdf
    • http://muicuiu.dumb1.com/1a01a02a09a08a02a04/Catch-Me-Once-Catch-Me-Twice-by-Janet-McNaughton.pdf
    • http://muicuiu.dumb1.com/2a02a00a08a06a05/Catch-My-Fall-Catch-1-by-Ella-Fox.pdf
    • http://muicuiu.dumb1.com/6a08a01a09a01a08/WRESTLING-Catch-As-Catch-Can-Style---23-Illustrated-Wrestling-Moves-by-Edward-Hitchcock-Jr-.pdf
    • http://muicuiu.dumb1.com/3a05a06a02a04a04/The-Runaway-amp-The-Russian-The-Runaway-Trilogy-Book-1-by-Helen-Bright.p

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