Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ed843de75340373…

MALICIOUS

PDF

16.1 KB Created: 2019-04-30 02:41:04 +01:00 Authoring application: mPDF 5.7
MD5: 26689aac60ae1e4e6fc41d60cba59adb SHA-1: 2cc6b13b73d421a499b42feac1f7d122bb88dc6a SHA-256: 8ed843de75340373274fa0c7d2d0550c284b539490bdcc869bbc8023a597ecb7
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 flagged as benign, the sheer volume and the heuristic 'PDF_SEO_LINK_FARM' indicate a malicious intent, likely for SEO manipulation or to redirect users to potentially harmful sites. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/3093099095098091/Elizabeth-the-Queen-The-Lady-Elizabeth-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/6095098092098091/Innocent-Traitor-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/8093097091098/Innocent-Traitor-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1090093097098091/A-Dangerous-Inheritance-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3099091098097/Eleanor-of-Aquitaine-A-Life-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/2096091092096093/Katherine-of-Aragon-the-True-Queen-Six-Tudor-Queens-1-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/5097094092/Anne-Boleyn-A-King-s-Obsession-Six-Tudor-Queens-2-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/3098096092090097/Mistress-of-the-Monarchy-The-Life-of-Katherine-Swynford-Duchess-of-Lancaster-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/2095095093094098/Lady-Helen-and-the-Dark-Days-Club-Lady-Helen-1-by-Alison-Goodman.pdf
    • http://loaminoo.linkpc.net/7092092091093096/Queens-of-the-Conquest-England-s-Medieval-Queens-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1099098091097094/Lady-Be-Good-American-s-Lady-2-by-Susan-Elizabeth-Phillips.pdf
    • http://loaminoo.linkpc.net/3092096095098092/Four-Men-amp-A-Lady-The-Deck-1-by-Alison-Kent.pdf
    • http://loaminoo.linkpc.net/30

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