MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document functions as a link farm, embedding numerous URLs that redirect to external PDF files. One primary redirector, 'https://ttraff.ru/wb?keyword=clasificacion%20de%20las%20plantas%20angiospermas%20y%20gimnospermas%20pdf', is flagged as malicious. The document's structure and the high number of external links suggest an attempt to manipulate search engine results or distribute malicious content through a deceptive link farm, likely as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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 https://ttraff.ru/wb?keyword=clasificacion%20de%20las%20plantas%20angiospermas%20y%20gimnospermas%20pdf In PDF document text
- http://files.vk3sn.net/uploads/1/3/1/8/131871894/d40f274a4b81b4.pdfIn PDF document text
- http://files.soapbarlounge.com/uploads/1/3/0/7/130776718/luriza_bokitewakikizu_sepipe.pdfIn PDF document text
- http://resedej.theveilkc.com/uploads/1/3/2/7/132740900/nivabozomujalusiso.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/definition_of_assessment_in_education.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1886/0190/files/28105294994.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3301/0082/files/logavuxuzebiba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0138/6920/files/11175565534.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9222/9797/files/apache_solr_index_files.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4219/4083/files/nikawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0219/1269/files/wemovaguzebibufunefi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4947/6518/files/tozukokisirap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5206/4155/files/57279497969.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7227/5103/files/mubaweri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2745/5387/files/manual_formulas_excel_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0489/5143/files/relorimepidut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1863/9765/files/modern_bioelectricity.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3513/1046/files/71522740982.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000696a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x696A | 5388 bytes |
SHA-256: f1891086052d629ec41cf6b2b722dc3b967327a4ed3bb40b0b42deeae1f21748 |
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font_01_sfnt_off00007ba9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BA9 | 9948 bytes |
SHA-256: b1e81b5c673e4a9a3844496d2444126838744e593c35115aef1e4c1b743ef538 |
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font_02_sfnt_off00009daa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DAA | 4324 bytes |
SHA-256: 781b9fae2fb9201b4a05d2041fea553bb2973f1d011ab9c51e3326c72e342c60 |
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