Malicious PDF — malware analysis report

Static analysis result for SHA-256 a832611755efaa75…

MALICIOUS

PDF

17.6 KB Created: 2019-04-30 08:56:40 +01:00 Authoring application: mPDF 5.7
MD5: 55769cebad15d7eaeae899271bef26f1 SHA-1: f600f3f1be87db93eded0b09776ac7e3291d737b SHA-256: a832611755efaa75bf73bec31cb2a8682389c9bef9a04b28277d0efeb71664ec
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which is a common technique for distributing malicious content or leading users to phishing sites. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. While no scripts were extracted, the sheer volume of links suggests an attempt to redirect the user to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

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/1a08a02a06a09a06/Crow-Boston-Underworld-1-by-A-Zavarelli.pdf
    • http://muicuiu.dumb1.com/2a01a06a00a03a04/Guardian-of-the-Underworld-Underworld-Chronicles-1-by-Rachel-Tetley.pdf
    • http://muicuiu.dumb1.com/1a00a05a03a05a01a08/Boston-s-Gun-Bible---Revised-with-2008-D-C-v-Heller-by-Boston-T-Party.pdf
    • http://muicuiu.dumb1.com/3a07a07a00a05/Underworld-Evolution-Underworld-3-by-Greg-Cox.pdf
    • http://muicuiu.dumb1.com/6a07a08a09a02/Lords-of-the-Underworld-10-Books-Collection-Pack-Set-Lords-of-the-Underworld-1-10-by-Gena-Showalter.pdf
    • http://muicuiu.dumb1.com/9a04a03a00a03a05/Crow-The-Crow-Series-1-by-Everyn-Kildare.pdf
    • http://muicuiu.dumb1.com/5a00a01a03a03/The-Crow-Quoth-the-Crow-by-David-Bischoff.pdf
    • http://muicuiu.dumb1.com/1a07a00a02a09a03/Falling-Series-Boxed-Set-by-A-Zavarelli.pdf
    • http://muicuiu.dumb1.com/4a06a02a01a08a08/Confess-Sin-City-Salvation-1-by-A-Zavarelli.pdf
    • http://muicuiu.dumb1.com/1a07a04a04a08a00/Victoria-s-Downfall-Hunted-1-by-A-Zavarelli.pdf
    • http://muicuiu.dumb1.com/2a02a06a04a08/Crow-s-Row-Crow-s-Row-1-by-Julie-Hockley.pdf
    • http://muicuiu.dumb1.com/7a07a02a05a06a01/The-Original-Fannie-Farmer-1896-Cookbook-The-Boston-Cooking-School-by-Boston-Cooking-School.pdf
    • http://muicuiu.dumb1.com/9a04a03a00a06a09/No-Cage-for-a-Crow-Part-One-Into-the-Storm-No-Cage-for-a-Crow-1-by-M-R-Graham.pdf
    • http://muicuiu.dumb1.com/4a05a09a00a01a03/Crow-Girl-Rises-Crow-Girl-3-by-Kate-Cann.pdf
    • http://muicuiu.dumb1.com/7a05a06a04a09a09/Museum-of-Fine-Arts-Boston-Paintings-of-the-Museum-of-Fine-Arts-Boston-Ananda-Coomaraswamy-the-Daughters-of-Edward-Darley-Boit-by-Source-Wikipedia.pdf
    • http://muicuiu.dumb1.com/1a05a00a05a09/Underworld-by-Don-DeLillo.pdf
    • http://muicuiu.dumb1.com/3a03a09a00a00a02/Hounds-of-the-Underworld-by-Dan-Rabarts.pdf
    • http://muicuiu.dumb1.com/3a07a02a09a02/Underworld-Abandon-2-by-Meg-Cabot.pdf
    • http://muicuiu.dumb1.com/7a05a02a01a07/The-War-of-Gods-A-Welcome-to-the-Underworld-Novel-3-by-Con-Template.pdf
    • http://muicuiu.dumb1.com/1a02a04a06a05a02/Underworld-Dark-Passage-2-by-M-L-Woolley.pdf
    • http://muicuiu.dumb1.com/4a06a02a01a08

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