Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0ffe8511489c0ca…

MALICIOUS

PDF

14.7 KB Created: 2019-05-07 04:20:19 +01:00 Authoring application: mPDF 5.7
MD5: 649441d96586696ad7a13c32d85666c8 SHA-1: 5d65815efe26ea96fc1d7c3b991f001ccfcc4c5c SHA-256: b0ffe8511489c0ca60992e681d96e06c663b1e0a377703059e7ee8722f6bc8e4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links and the ML classification suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/1a00a00a00a05a01/Enemy-of-God-The-Warlord-Chronicles-2-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a05a00a09a05/Enemy-of-God-The-Warlord-Chronicles-2-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a08a07a09a05a08/Warlord-Chronicles-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a08a08a07a03a04/Enemy-of-God-A-Novel-of-Arthur-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a04a09a09a05a07/Copperhead-The-Starbuck-Chronicles-2-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/2a05a04a04a04a08/The-Bloody-Ground-The-Starbuck-Chronicles-4-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a08a03a01a09a07/Warriors-of-the-Storm-The-Warrior-Chronicles-Saxon-Stories-9-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a04a09a01a03a07/Sharpe-s-Enemy-Sharpe-15-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/2a05a00a07a04a09/Azincourt-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a04a03a00a05a05/The-Fort-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a08a02a00a08a05/Death-of-Kings-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/8a09a06a04a02a02/Sharpes-L-segeld-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a02a02a01a07a08/The-Last-Kingdom-The-Saxon-Stories-1-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a03a00a01a01a03/The-Last-Kingdom-The-Saxon-Stories-1-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a04a02a07a07a00/O-Arqueiro-A-Busca-do-Graal-1-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a08a03a00a05/Death-of-Kings-The-Saxon-Stories-6-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/8a07a03a06a04a06/Sharpes-Feind-Sharpe-Band-15-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/7a08a08a02a00/The-Pagan-Lord-The-Saxon-Stories-7-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a04a09a07a01/Lords-of-the-North-The-Saxon-Stories-3-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a05a01a02a04a08/The-Pagan-Lord-The-Saxon-Stories-7-by-Bernard-Cornwell.pdf
    • http://muicuiu.dumb1.com/

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