MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. One of these links, http://6wd.brdge.org/uploads/1/3/1/4/131438486/131438486.html, is also present in the document body. The ML_NYX_PDF_MALICIOUS heuristic strongly suggests malicious intent. The presence of embedded URLs and the link farm structure indicate a likely attempt to redirect users to malicious content or for SEO abuse.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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://6wd.brdge.org/uploads/1/3/1/4/131438486/131438486.html#define+communicative+constitution+of PDF link annotation
- http://thearlyworm.com/uploads/1/3/0/6/130621995/683446.pdfIn PDF document text
- http://campbelltownfc.org/uploads/1/3/0/7/130738525/toxegagawama.pdfIn PDF document text
- http://jorax-beveiliging.nl/uploads/1/3/0/4/130476313/vurixamoraruj.pdfIn PDF document text
- http://6wd.brdge.org/uploads/1/3/1/4/131438486/terms.htmlIn PDF document text
- http://6wd.brdge.org/uploads/1/3/1/4/131438486/dmca.htmlIn PDF document text
- http://6wd.brdge.org/uploads/1/3/1/4/131438486/policy.htmlIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wujemirezop.files.wordpress.com/2020/06/38635840853.pdfIn PDF document text
- https://nupukoxugezo.files.wordpress.com/2020/06/31024944934.pdfIn PDF document text
- https://volagazep.files.wordpress.com/2020/06/11464444104.pdfIn PDF document text
- https://gikubom874419191.files.wordpress.com/2020/06/4674140866.pdfIn PDF document text
- https://mapinazoten.files.wordpress.com/2020/06/1915401888.pdfIn PDF document text
- https://xugipoxuwigo.files.wordpress.com/2020/06/rifijalosejubujoxif.pdfIn PDF document text
- https://zawimig643626223.files.wordpress.com/2020/06/36577407552.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008ed0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8ED0 | 11036 bytes |
SHA-256: b464f9b4d972dd6d454a6e4b66645e0a5cecef5e4f91d42b7b8107b3a756da84 |
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