Malicious PDF — malware analysis report

Static analysis result for SHA-256 f40fd99d29b3284d…

MALICIOUS

PDF

25.4 KB Created: 2019-04-30 05:26:11 +01:00 Authoring application: mPDF 5.7
MD5: 214dd7c71c0ac568a2f1ebbbb3576562 SHA-1: a20477d3391a701e7e364985d6b5e5c9d5b14772 SHA-256: f40fd99d29b3284d70a9f90b7c0a80b8dab4a6f3f8077bb9468c142bd6aa7b4a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links 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 the specific intent of the links is unclear, the sheer volume and the ML classification suggest a malicious purpose, likely to direct users to harmful content or exploit kits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9716

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/6a03a07a08a09a04/There-We-ll-Meet-Again-Young-German-Girl-s-Diary-of-the-First-World-War-by-Piete-Kuhr.pdf
    • http://muicuiu.dumb1.com/9a08a01a07a04/The-Diary-of-a-Young-Girl-by-Anne-Frank.pdf
    • http://muicuiu.dumb1.com/4a04a01a00a09a08/The-Diary-of-a-Young-Girl-by-Anne-Frank.pdf
    • http://muicuiu.dumb1.com/9a05a02a01a02a06/Tagebuch-eines-beinahe-coolen-M-dchens--Meine-neue-Schule---Urkomisches-Buch-f-r-M-dchen-zwischen-8-12-Jahren-Diary-of-an-Almost-Cool-Girl---My-New-School---German-Version-by-Bill-Campbell.pdf
    • http://muicuiu.dumb1.com/2a05a02a03a06a06/War-Nurse-A-Second-World-War-Girl-s-Diary-1939-1940-by-Sue-Reid.pdf
    • http://muicuiu.dumb1.com/9a00a03a07a00/Helga-s-Diary-A-Young-Girl-s-Account-of-Life-in-a-Concentration-Camp-by-Helga-Weiss.pdf
    • http://muicuiu.dumb1.com/9a08a07a03a09a07/World-War-2-Waffen-SS-Soldiers---Testimonies-of-German-SS-Soldiers---2nd-Edition-World-War-2-WW2-WWII-German-Soldiers-by-Oliver-Mayer.pdf
    • http://muicuiu.dumb1.com/2a07a05a07a01a01/Anne-Frank-The-Diary-of-a-Young-Girl-by-Anne-Frank.pdf
    • http://muicuiu.dumb1.com/2a05a01a01a08a02/Slave-Girl-An-African-American-Girl-s-Diary-1859-by-Patricia-C-McKissack.pdf
    • http://muicuiu.dumb1.com/2a05a01a00a05a00/Highway-Girl-An-English-Girl-s-Diary-1670-by-Valerie-Wilding.pdf
    • http://muicuiu.dumb1.com/3a06a08a07a01a00/Shalia-s-Diary-Book-2-Shalia-s-Diary-2-World-of-Kalquor-3-2-by-Tracy-St-John.pdf
    • http://muicuiu.dumb1.com/9a09a02a00a00a04/The-Earnings-Position-of-Young-People-on-the-German-Labour-Market-by-Markus-Scheuer.pdf
    • http://muicuiu.dumb1.com/6a01a04a09a08/Meet-the-Real-World-Rachel-by-Karen-McCombie.pdf
    • http://muicuiu.dumb1.com/4a06a07a00a05a03/The-English-German-Girl-by-Jake-Wallis-Simons.pdf
    • http://muicuiu.dumb1.com/2a00a06a06a02a00/World-History-Biographies-Anne-Frank-The-Young-Writer-Who-Told-the-World-Her-Story-by-Ann-Kramer.pdf
    • http://muicuiu.dumb1.com/4a02a01a09a06a09/Restless-Flags-a-German-Girl-s-Story-by-Lilo-Linke.pdf
    • http://muicuiu.dumb1.com/4a07a07a07a09a09/A-Girl-s-Guide-to-Taking-Over-the-World-Writings-From-The-Girl-Zine-Revolution-by-Karen-Green.pdf
    • http://muicuiu.dumb1.com/1a03a08a06a04a06/Some-Desparate-Glory-The-Diary-of-a-Young-Officer-1917-by-Edwin-Campion-Vaughan.pdf
    • http://muicuiu.dumb1.com/7a01a01a00a07/Diary-of-a-Mad-Fat-Girl-by-Stephanie-McAfee.pdf
    • http://muicuiu.dumb1.com/1a01a04a05a01a08a00/Materials-for-German-Prose-Composition-or-Selections-from-Modern-English-Writers-With-Grammatical-Notes-Idiomatic-Renderings-of-Difficult-Phrases-Essentials-of-German-Syntax-Preliminary-Chapters-on-Punctuation-and-the-Division-of-Words-in-German-and-by-C-A-Buchheim.pdf
    • http://muicuiu.dumb1.com/9a05a02a01a02a06/Tagebuch-eines-beinahe-coolen-M-dchens