MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document exhibits characteristics of a link farm or SEO spam, embedding a large number of external URLs. The ML classifier strongly indicates maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the suspicious nature of the embedded links. The document's primary function appears to be directing users to a network of external sites, potentially for malicious purposes such as phishing or malware distribution.
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://kalajarvenlomakyla.fi/uploads/1/3/1/3/131398187/131398187.html#partes+de+un+protocolo+de+investigacion+unam PDF link annotation
- http://livewellandsimply.com/uploads/1/3/0/7/130775380/a15e05bfb191aa.pdfIn PDF document text
- http://heirfi.com/uploads/1/3/0/6/130621744/fezow.pdfIn PDF document text
- http://teachingsm.com/uploads/1/3/0/2/130273581/5f214420f225b.pdfIn PDF document text
- http://ballaratbabysitting.com.au/uploads/1/3/0/9/130969653/xefivube.pdfIn PDF document text
- http://angelsondeathrow.com/uploads/1/3/0/2/130273626/e0e7c.pdfIn PDF document text
- http://cupidcardgame.com/uploads/1/3/0/6/130621785/nevefajakugomuwiz.pdfIn PDF document text
- http://moonsana.com/uploads/1/3/0/5/130543771/jenobon.pdfIn PDF document text
- http://investnn.com/uploads/1/3/0/4/130493476/tudabilateg_kezowavaxaloru_gabaropiwir.pdfIn PDF document text
- http://cabrerahotels.net/uploads/1/3/0/6/130639468/a096b9.pdfIn PDF document text
- http://ellifintech.com/uploads/1/3/1/0/131069997/4269191.pdfIn PDF document text
- http://webmail.beautysalon73.nl/uploads/1/3/0/6/130640208/pebawus.pdfIn PDF document text
- http://desatascoscornella.net/uploads/1/3/0/4/130478935/gabuze_posar.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
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000715b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x715B | 8060 bytes |
SHA-256: 61c1c0a1c5b5aafd576356cf5317cf75bda7f8ef8624c9ca04b32ced2dae6373 |
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