Malicious PDF — malware analysis report

Static analysis result for SHA-256 28b9a571d135c926…

MALICIOUS

PDF

18.1 KB Created: 2019-04-30 04:15:06 +01:00 Authoring application: mPDF 5.7
MD5: a768ffe2c65e44bab331520a239bb2d8 SHA-1: 8002f3c1cb91bfb2e21e4044d22ead67397302fa SHA-256: 28b9a571d135c9262b7adc0d916cf52c8bd748c7adf8df8bd6e39c5d97baf55e
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, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the specific URLs extracted were classified as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/9a09a09a00a05a08/Price-Waterhouse-by-Vault-com-Inc-.pdf
    • http://muicuiu.dumb1.com/9a09a08a08a05a06/Myth-and-Romance-The-Art-of-J-W-Waterhouse-by-John-William-Waterhouse.pdf
    • http://muicuiu.dumb1.com/9a09a09a00a05a09/The-Waterhouse-Oracle-by-John-William-Waterhouse.pdf
    • http://muicuiu.dumb1.com/2a05a04a05a01a06/The-Ultimate-Guide-to-Retirement-Planning-How-To-Retire-Early-And-Stay-Wealthy-For-Ever-Retirement-for-Dummies-Retirement-Investing-Early-Retirement-by-Jacob-Lindgren.pdf
    • http://muicuiu.dumb1.com/7a02a01a06a00a06/7-Most-Important-Equations-for-Your-Retirement-The-Fascinating-People-and-Ideas-Behind-Planning-Your-Retirement-Income-by-Moshe-A-Milevsky.pdf
    • http://muicuiu.dumb1.com/4a03a08a04a06/The-Price-of-Altruism-George-Price-and-the-Search-for-the-Origins-of-Kindness-by-Oren-Harman.pdf
    • http://muicuiu.dumb1.com/8a07a00a06a05/The-Price-of-Spring-Long-Price-Quartet-4-by-Daniel-Abraham.pdf
    • http://muicuiu.dumb1.com/5a09a03a04a04a09/Vincent-Price-A-Daughter-s-Biography-by-Victoria-Price.pdf
    • http://muicuiu.dumb1.com/6a01a03a02a07a09/The-Thoughts-and-Happenings-of-Wilfred-Price-Purveyor-of-Superior-Funerals-Wilfred-Price-1-by-Wendy-Jones.pdf
    • http://muicuiu.dumb1.com/9a09a09a01a03a04/In-My-Words-by-Gai-Waterhouse.pdf
    • http://muicuiu.dumb1.com/9a09a09a00a06a03/Zoroastrianism-by-John-W-Waterhouse.pdf
    • http://muicuiu.dumb1.com/9a09a08a08a06a04/Blue-Box-Boy-by-Matthew-Waterhouse.pdf
    • http://muicuiu.dumb1.com/9a09a09a01a04a02/How-to-Live-to-Be-22-by-Keith-Waterhouse.pdf
    • http://muicuiu.dumb1.com/9a09a08a08a05a07/The-Waterhouse-by-Jubal-Tiner.pdf
    • http://muicuiu.dumb1.com/9a09a09a00a06a09/Our-Song-by-Keith-Waterhouse.pdf
    • http://muicuiu.dumb1.com/9a09a08a08a05a04/J-W-Waterhouse-by-Anthony-Hobson.pdf
    • http://muicuiu.dumb1.com/9a09a08a09a01a07/Indie-Craft-by-Jo-Waterhouse.pdf
    • http://muicuiu.dumb1.com/4a06a00a00a08a09/Soul-Love-by-Lynda-Waterhouse.pdf
    • http://muicuiu.dumb1.com/3a09a08a03a09/Billy-Liar-by-Keith-Waterhouse.pdf
    • http://muicuiu.dumb1.com/9a09a08a08a06a03/Waterhouse-Darkstepper-Quadrilogy-1-by-Antonio-Lozada.pdf

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