Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd90ebd68918b90…

MALICIOUS

PDF

21.6 KB Created: 2019-05-07 03:37:33 +01:00 Authoring application: mPDF 5.7
MD5: d67d05228e189c99f58cfcd374aa7380 SHA-1: 107f78d02b5859acce1df5904451a974a2866745 SHA-256: 4fd90ebd68918b9006baa06b311001b675d1c1786f56550e76c196bc78bde43b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of SEO-optimized links, a technique often used to drive traffic to malicious websites or to host phishing content. The ML classifier strongly indicated maliciousness. While the specific links extracted were labeled as benign, the overall structure and heuristic firings point to a malicious intent to distribute links, likely for a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/6097093092096091/PRIDE-AND-PREJUDICE-Jane-Austen-author-of-Mansfield-Park-Persuasion-Sense-and-Sensibility-Northanger-Pride-and-Prejudice-Annotated-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/2098091098097096/Georgiana-Darcy-s-Diary-Jane-Austen-s-Pride-and-Prejudice-Continued-Pride-and-Prejudice-Chronicles-1-by-Anna-Elliott.pdf
    • http://loaminoo.linkpc.net/1091097097091090093/Four-Major-Works-by-Jane-Austen-Northanger-Abbey-Lady-Susan-Sense-and-Sensibility-Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/1091097097090097096/Jane-Austen-Four-Novels-Sense-and-Sensibility-Pride-and-Prejudice-Emma-Northanger-Abbey-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/9091095097090/Jane-Austen-Pride-and-Prejudice-Mansfield-Park-Persuasion-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/5093091098097094/NORTHANGER-ABBEY-by-Jane-Austen-author-of-Sense-and-Sensibility-Pride-and-Prejudice-Persuasion-Emma-Mansfield-Park-Nothanger-Abbey-Annotated-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/9095094099094093/Pride-amp-Prejudice-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/4092092090094097/Pride-Prejudice-and-Cheese-Grits-Jane-Austen-Takes-the-South-1-by-Mary-Jane-Hathaway.pdf
    • http://loaminoo.linkpc.net/3092094095090097/Pride-Prejudice-and-Cheese-Grits-Jane-Austen-Takes-the-South-1-by-Mary-Jane-Hathaway.pdf
    • http://loaminoo.linkpc.net/1096096093090092/Pride-Prejudice-and-Cheese-Grits-Jane-Austen-Takes-the-South-1-by-Mary-Jane-Hathaway.pdf
    • http://loaminoo.linkpc.net/1098098091090090/Pride-Prejudice-and-Cheese-Grits-Jane-Austen-Takes-the-South-1-by-Mary-Jane-Hathaway.pdf
    • http://loaminoo.linkpc.net/6092096092099099/SENSE-AND-SENSIBILITY-by-Jane-Austen-author-of-Mansfield-Park-Persuasion-Sense-and-Sensibility-Northanger-Pride-and-Prejudice-Annotated-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/5094096091095091/Pride-and-Prejudice-An-Annotated-Edition-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/7090092097092095/Pride-and-Prejudice-Barnes-amp-Noble-Leather-Bound-by-Jane-Austen.pdf
    • http://loaminoo.linkpc.net/3099090090093096/A-Tapestry-of-Lives-A-Variation-on-Jane-Austen-s-Pride-and-Prejudice-2-by-Jean-Sims.pdf
    • http://loaminoo.linkpc.net/1091090095096098098/Georgiana-Darcy-A-Sequel-to-Jane-Austen-s-Pride-and-Prejudice-by-Alice-Isakova.pdf
    • http://loaminoo.linkpc.net/2097098093097090/Charlotte-Collins-A-Continuation-of-Jane-Austen-s-Pride-and-Prejudice-by-Jennifer-Becton.pdf
    • http://loaminoo.linkpc.net/4093099093095091/Charlotte-Collins-A-Continuation-of-Jane-Austen-s-Pride-and-Prejudice-by-Jennifer-Becton.pdf
    • http://loaminoo.linkpc.net/2098092091099090/Wickham-s-Wife-A-Back-story-to-Jane-Austen-s-Pride-and-Prejudice-by-C-J-Hill.pdf
    • http://loaminoo.linkpc.net/3098099098099094/A-Tapestry-of-Lives-A-Variation-on-Jane-Austen-s-Pride-and-Prejudice-1-by-Jean-Sims.pdf
    • http://loaminoo.linkpc.net/1091097097090097096/Jane-Austen-Four-Novels-Sense-and-Sensibility-Pride-and-Prejudice-Emma-Northanger-Abbey-by-Jane-A

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