Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4e9d7d0b1ee0fa2…

MALICIOUS

PDF

15.4 KB Created: 2019-05-07 02:50:18 +01:00 Authoring application: mPDF 5.7
MD5: a3a9ed4440251cfc73074d16fe2f9e1d SHA-1: 14b2e70efa761cd9c4b3e3ca23ee136913fe2253 SHA-256: f4e9d7d0b1ee0fa26ff849ad88ae1b52d0c1770dd467e644c65f8d7ad2752e47
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 URLs, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests a deceptive or harmful intent. The primary attack pattern involves leveraging these links to direct users away from the document.

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/3a07a03a06a05a08/The-Valentine-Grinch-by-Sheila-Seabrook.pdf
    • http://muicuiu.dumb1.com/2a08a01a03a00a01/Taming-Sheila-Night-Calls-4-by-J-C-Valentine.pdf
    • http://muicuiu.dumb1.com/4a03a05a06a05a01/Fry-Bacon-Add-Onions-The-Valentine-Family-amp-Friends-Cookbook-by-Kathleen-Valentine.pdf
    • http://muicuiu.dumb1.com/9a02a06a02a09a08/Best-Valentine-s-Day-Comeplete-Guide-For-a-Perfect-Valentine-s-Day-by-Duby-Nevo.pdf
    • http://muicuiu.dumb1.com/3a04a08a02a08a05/A-Town-Called-Valentine-Valentine-Valley-1-by-Emma-Cane.pdf
    • http://muicuiu.dumb1.com/3a08a08a02a05a06/Flight-of-a-Valentine-The-Valentine-Series-by-Angela-Bradley.pdf
    • http://muicuiu.dumb1.com/6a09a06a01a04a06/Valentine-Pontifex-Lord-Valentine-3-by-Robert-Silverberg.pdf
    • http://muicuiu.dumb1.com/5a00a04a00a09a06/Lord-Valentine-s-Castle-Majipoor-Lord-Valentine-1-by-Robert-Silverberg.pdf
    • http://muicuiu.dumb1.com/2a04a09a03a08a07/Born-to-Run-by-Tish-Rabe.pdf
    • http://muicuiu.dumb1.com/9a07a09a01a09a01/On-Beyond-Bugs-by-Tish-Rabe.pdf
    • http://muicuiu.dumb1.com/3a03a03a03a07a08/A-Hero-by-Any-Other-Name-by-Jean-Rabe.pdf
    • http://muicuiu.dumb1.com/2a05a00a00a08/Lord-Valentine-s-Castle-Lord-Valentine-1-by-Robert-Silverberg.pdf
    • http://muicuiu.dumb1.com/1a00a04a07a07a01/Pockets-of-Darkness-by-Jean-Rabe.pdf
    • http://muicuiu.dumb1.com/4a00a01a02a03a06/Boondocks-Fantasy-by-Jean-Rabe.pdf
    • http://muicuiu.dumb1.com/9a07a09a01a09a05/Is-a-Camel-a-Mammal-by-Tish-Rabe.pdf
    • http://muicuiu.dumb1.com/9a07a09a01a03a07/Oh-Baby-the-Places-You-ll-Go-by-Tish-Rabe.pdf
    • http://muicuiu.dumb1.com/9a07a09a02a01a09/Athena-s-Daughters-Vol-1-by-Jean-Rabe.pdf
    • http://muicuiu.dumb1.com/1a03a09a07a03a05/Sticks-and-Bones-by-David-Rabe.pdf
    • http://muicuiu.dumb1.com/9a06a07a07a08a07/Aftershock-Shadowrun-5-by-Jean-Rabe.pdf
    • http://muicuiu.dumb1.com/9a07a09a02a09a00/A-Tale-about-Tails-Dr-Seuss-The-Cat-in-the-Hat-Knows-a-Lot-about-That-by-Tish-Rabe.pdf
    • http://muicuiu.dumb1.com/9a07a09a01a09a01/On-Beyond-Bugs-by-Tish-Rabe.p

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