MALICIOUS
92
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which are dynamically generated and point to external PDF files. This behavior is indicative of a link farm or SEO manipulation tactic, potentially used to distribute malicious content or improve search engine ranking for malicious sites. The ML classifier also flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9589
Heuristics 2
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Embedded URL info EMBEDDED_URLOne 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://cefasfese.4pu.com/1730737736732733737/Arge-County-Geography-Introduction-Raul-Doamnei-Raul-Targului-Bratia-River-Bughea-River-Arge-El-River-Valea-Brusturetului-River-by-Source-Wikipedia.pdf In PDF document text
- http://cefasfese.4pu.com/1730737736730737731/Localit-I-in-Jude-UL-Arge-Stroe-Ti-Arge-Tefan-Cel-Mare-Arge-Mor-Re-Ti-Arge-Slobozia-Arge-Mo-Teni-Greci-Arge-Negra-I-Arge-by-Surs-Wikipedia.pdfIn PDF document text
- http://cefasfese.4pu.com/1730737736730737738/Jude-UL-Arge-Companii-Din-Jude-UL-Arge-Comune-in-Jude-UL-Arge-Geografia-Jude-Ului-Arge-Localit-I-in-Jude-UL-Arge-by-Surs-Wikipedia.pdfIn PDF document text
- http://cefasfese.4pu.com/6730733735734738/Fiction-River-Justice-Fiction-River-An-Original-Anthology-Magazine-Book-27-by-Fiction-River.pdfIn PDF document text
- http://cefasfese.4pu.com/6732737737730736/Old-Man-River-The-Mississippi-River-in-North-American-History-by-Paul-Schneider.pdfIn PDF document text
- http://cefasfese.4pu.com/9732738737734734/Nahanni-River-of-Gold-River-of-Dreams-by-Neil-Hartling.pdfIn PDF document text
- http://cefasfese.4pu.com/3739734730735737/River-Lady-James-River-Trilogy-3-by-Jude-Deveraux.pdfIn PDF document text
- http://cefasfese.4pu.com/7735736734736737/River-in-Ruin-The-Story-of-the-Carmel-River-by-Ray-A-March.pdfIn PDF document text
- http://cefasfese.4pu.com/1731735739736730/River-River-Wolfe-1-by-Skyla-Dawn-Cameron.pdfIn PDF document text
- http://cefasfese.4pu.com/2730736734739/First-There-Is-a-River-Spirit-of-the-River-1-by-Kathy-Steffen.pdfIn PDF document text
- http://cefasfese.4pu.com/3735737733737732/The-Bank-of-the-River-The-River-1-by-Michael-Richan.pdfIn PDF document text
- http://cefasfese.4pu.com/6732736733734/Streams-to-the-River-River-to-the-Sea-by-Scott-O-39-Dell.pdfIn PDF document text
- http://cefasfese.4pu.com/6730734739736735/Red-River-Vol-23-Red-River-23-by-Chie-Shinohara.pdfIn PDF document text
- http://cefasfese.4pu.com/6730734739730738/Red-River-Vol-5-Red-River-5-by-Chie-Shinohara.pdfIn PDF document text
- http://cefasfese.4pu.com/6730734739730739/Red-River-Vol-4-Red-River-4-by-Chie-Shinohara.pdfIn PDF document text
- http://cefasfese.4pu.com/4735737738734/Red-River-Vol-1-Red-River-1-by-Chie-Shinohara.pdfIn PDF document text
- http://cefasfese.4pu.com/6730734739732733/Red-River-Vol-15-Red-River-15-by-Chie-Shinohara.pdfIn PDF document text
- http://cefasfese.4pu.com/2736735737733735/Whiskey-River-Rescue-Whiskey-River-1-by-Justine-Davis.pdfIn PDF document text
- http://cefasfese.4pu.com/9739734730734733/Ein-neuer-Tag-in-Virgin-River-Virgin-River-5-by-Robyn-Carr.pdfIn PDF document text
- http://cefasfese.4pu.com/7730738730733739/Welkom-in-Virgin-River-Virgin-River-2-by-Robyn-Carr.pdfIn PDF document text
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