Malicious PDF — malware analysis report

Static analysis result for SHA-256 b25cf185d751b666…

MALICIOUS

PDF

22.0 KB Created: 2019-04-30 01:54:42 +01:00 Authoring application: mPDF 5.7
MD5: e128390dd9b59afa1b59d09297298aa6 SHA-1: a7eec3863df0b06e857d4bedbabcaaa8ac2ca144 SHA-256: b25cf185d751b6664bc04d031e8026a40f4af0f72f49033d7774c29cf363c385
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF document contains a large number of embedded links to external PDF files, characteristic of a link farm. This technique is often used to distribute malicious content or to artificially inflate search engine rankings for malicious sites. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

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/3a04a00a01a05a04/Henry-VIII-Wolfman-by-A-E-Moorat.pdf
    • http://muicuiu.dumb1.com/3a02a09a00a04a06/The-Six-Wives-Of-Henry-VIII-by-Alison-Weir.pdf
    • http://muicuiu.dumb1.com/4a03a05a08a08a04/The-Six-Wives-of-Henry-VIII-by-Antonia-Fraser.pdf
    • http://muicuiu.dumb1.com/8a08a01a06a06/Henry-VIII-The-King-and-His-Court-by-Alison-Weir.pdf
    • http://muicuiu.dumb1.com/8a05a07a02a09a01/Henry-VIII-The-Politics-of-Tyranny-by-Jasper-Ridley.pdf
    • http://muicuiu.dumb1.com/2a02a02a02a04a07/The-Man-on-a-Donkey-A-Powerful-Novel-of-England-in-the-Reign-of-Henry-VIII-by-H-F-M-Prescott.pdf
    • http://muicuiu.dumb1.com/3a03a09a02a04a08/1536-The-Year-That-Changed-Henry-VIII-by-Suzannah-Lipscomb.pdf
    • http://muicuiu.dumb1.com/2a05a02a00a01a02/Bessie-Blount-Mistress-to-Henry-VIII-by-Elizabeth-Norton.pdf
    • http://muicuiu.dumb1.com/3a03a09a08a07a05/Henry-VIII-About-the-throne-the-thunder-rolls-by-Alison-Hardwick.pdf
    • http://muicuiu.dumb1.com/3a03a09a09a03a05/You-Wouldn-t-Want-To-Be-Married-To-Henry-VIII-A-Husband-You-d-Rather-Not-Have-by-Fiona-MacDonald.pdf
    • http://muicuiu.dumb1.com/3a06a01a06a01a01/A-King-Of-All-Seasons-A-Day-In-The-Life-Of-Henry-VIII-by-Sanna-Khaliq.pdf
    • http://muicuiu.dumb1.com/1a01a00a09a07a09a09/The-Last-Divine-Office-Henry-VIII-and-the-Dissolution-of-the-Monasteries-by-Geoffrey-Moorhouse.pdf
    • http://muicuiu.dumb1.com/3a06a08a09a03/The-Autobiography-of-Henry-VIII-With-Notes-by-His-Fool-Will-Somers-by-Margaret-George.pdf
    • http://muicuiu.dumb1.com/6a04a03a00a05a02/Catherine-of-Aragon-An-Intimate-Life-of-Henry-VIII-s-True-Wife-by-Amy-Licence.pdf
    • http://muicuiu.dumb1.com/6a04a02a09a02a05/Katharine-of-Aragon-The-Tragic-Story-of-Henry-VIII-s-First-Unfortunate-Wife-by-Patrick-Williams.pdf
    • http://muicuiu.dumb1.com/3a07a03a00a04a05/Deadlock-John-Hutchinson-2-by-Robert-Liparulo.pdf
    • http://muicuiu.dumb1.com/3a03a09a02a02a05/House-of-Treason-The-Rise-and-Fall-of-a-Tudor-Dynasty-by-Robert-Hutchinson.pdf
    • http://muicuiu.dumb1.com/1a01a01a03a09a04a06/Calendar-of-the-Patent-and-Close-Rolls-of-Chancery-in-Ireland-of-the-Reigns-of-Henry-VIII-Edward-VI-Mary-and-Elizabeth-Vol-1-by-James-Morrin.pdf
    • http://muicuiu.dumb1.com/7a09a00a06a02/Four-Princes-Henry-VIII-Francis-I-Charles-V-Suleiman-the-Magnificent-and-the-Obsessions-that-Forged-Modern-Europe-by-John-Julius-Norwich.pdf
    • http://muicuiu.dumb1.com/4a07a07a01a08a06/Elizabeth-s-Spymaster-Francis-Walsingham-and-the-Secret-War-That-Saved-England-by-Robert-Hutchinson.pdf
    • http://muicuiu.dumb1.com/3a03a09a09a03a05/You-Wouldn-t-Want-To-Be-Married-To-Henry-VIII-A-Husband-You-d-Rather-Not-Have-by

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