Malicious PDF — malware analysis report

Static analysis result for SHA-256 f653b263a39be8d9…

MALICIOUS

PDF

17.8 KB Created: 2019-04-30 04:15:56 +01:00 Authoring application: mPDF 5.7
MD5: d3d3bcfbedcc67a652a04fe0df03b366 SHA-1: fee51c4b896bc9b34f3f584bba12beaf71d9053a SHA-256: f653b263a39be8d97c64cf9e2775950253ee9ad64745cc4e7f873b087387041e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, many of which are hosted on the suspicious domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a redirection scheme designed to lead users to potentially malicious content. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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.co
    • http://muicuiu.dumb1.com/3a05a03a01a00a01/Midshipman-Henry-Gallant-in-Space-The-Henry-Gallant-Saga-1-by-H-Peter-Alesso.pdf
    • http://muicuiu.dumb1.com/6a04a06a03a00/Lieutenant-Henry-Gallant-The-Henry-Gallant-Saga-2-by-H-Peter-Alesso.pdf
    • http://muicuiu.dumb1.com/1a02a05a02a08a04/Dick-and-Henry-The-Space-Saga-by-Kenneth-Buff.pdf
    • http://muicuiu.dumb1.com/8a03a06a06a04a03/Catalogue-of-Twenty-One-Masterpieces-Collected-by-the-Late-Mr-H-S-Henry-to-Be-Sold-at-Unrestricted-Public-Sale-by-Order-of-His-Executors-Mrs-Henry-and-Girard-Trust-Company-of-Philadelphia-on-February-4th-at-Mendelssohn-Hall-by-Harry-Samuel-Henry.pdf
    • http://muicuiu.dumb1.com/2a03a06a00a07a00/The-Other-Paris-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/2a03a06a00a09a02/In-Transit-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/8a08a00a08a09a02/A-Gallant-Passion-by-Helene-M-Lehr.pdf
    • http://muicuiu.dumb1.com/1a02a05a02a04/Gallant-Waif-by-Anne-Gracie.pdf
    • http://muicuiu.dumb1.com/2a03a05a09a04a08/Montreal-Stories-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/2a03a06a01a00a05/Across-the-Bridge-Stories-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/3a08a02a03a02a01/An-Uncertain-Destiny-by-Jannine-Gallant.pdf
    • http://muicuiu.dumb1.com/2a03a05a09a02a08/From-The-Fifteenth-District-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/1a05a04a00a01a05/Evergreen-Gallant-by-Jean-Plaidy.pdf
    • http://muicuiu.dumb1.com/2a03a05a09a00a08/Paris-Stories-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/1a05a04a06a02a04/Darkness-Falls-Outage-1-by-Mathieu-Gallant.pdf
    • http://muicuiu.dumb1.com/3a07a00a01a02a03/Darkness-Falls-Outage-1-by-Mathieu-Gallant.pdf
    • http://muicuiu.dumb1.com/4a04a05a04a05a02/Paris-Notebooks-Essays-and-Reviews-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/6a09a09a00a04/In-Gallant-Company-Richard-Bolitho-5-by-Alexander-Kent.pdf
    • http://muicuiu.dumb1.com/2a08a02a02a00a00/No-More-Than-Friends-A-Pride-and-Prejudice-Variation-by-Wendy-Ann-Gallant.pdf
    • http://muicuiu.dumb1.com/6a06a00a09a03a08/The-Gallant-Outlaw-1890-The-House-of-Winslow-15-by-Gilbert-Morris.pdf

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