Malicious PDF — malware analysis report

Static analysis result for SHA-256 c28105eadab1b98d…

MALICIOUS

PDF

18.0 KB Created: 2019-05-03 12:53:54 +01:00 Authoring application: mPDF 5.7
MD5: 16f66d4b7a9d092b62503d965ab8f8ba SHA-1: db57dbb9c1c89d0d6fc6026632c876fdee658785 SHA-256: c28105eadab1b98ddea38bfb57c058adeb74d89955ce5305711360543a7c80df
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently marked as benign, the heuristic 'PDF_SEO_LINK_FARM' indicates a malicious intent to manipulate search engine results or distribute content. The ML classifier also flagged this PDF with high confidence. The primary attack pattern involves leveraging a large number of links within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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://loaminoo.linkpc.net/3098096092090097/Mistress-of-the-Monarchy-The-Life-of-Katherine-Swynford-Duchess-of-Lancaster-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3092096090/Katherine-of-Arag-n-The-True-Queen-Six-Tudor-Queens-1-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3091098093097097/Katherine-of-Aragon-The-True-Queen-Six-Tudor-Queens-1-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/2096091092096093/Katherine-of-Aragon-the-True-Queen-Six-Tudor-Queens-1-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3095096091092092/Wallis-in-Love-The-Untold-Life-of-the-Duchess-of-Windsor-the-Woman-Who-Changed-the-Monarchy-by-Andrew-Morton.pdf
    • http://loaminoo.linkpc.net/3099091098097/Eleanor-of-Aquitaine-A-Life-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/8093097091098/Innocent-Traitor-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/6095098092098091/Innocent-Traitor-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1090093097098091/A-Dangerous-Inheritance-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3090095092092096/The-Lady-Elizabeth-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3094096092096/The-Six-Wives-of-Henry-VIII-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/2090098098093098/Captive-Queen-A-Novel-of-Eleanor-of-Aquitaine-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3097098095098094/Eleanor-of-Aquitaine-By-the-Wrath-of-God-Queen-of-England-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1091091098090097095/Innocent-Traitor-A-Novel-of-Lady-Jane-Grey-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1097098093091095/Anne-Boleyn-A-King-s-Obsession-Six-Tudor-Queens-2-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/5097094092/Anne-Boleyn-A-King-s-Obsession-Six-Tudor-Queens-2-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3097095099098091/Against-Our-Better-Judgment-The-Hidden-History-of-How-the-United-States-Was-Used-to-Create-Israel-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/9092094099094097/The-Richest-Girl-in-England-Katherine-Manners-Duchess-of-Buckingham-by-Lita-Rose-Betcherman.pdf
    • http://loaminoo.linkpc.net/7092092091093096/Queens-of-the-Conquest-England-s-Medieval-Queens-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3093099095098091/Elizabeth-the-Queen-The-Lady-Elizabeth-by-Alison-Weir.pdf

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