MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a redirector service that is known to host malicious content. The document body also contains a direct link to this redirector, suggesting a phishing or scam attempt to trick users into downloading potentially harmful files. The ML classifier strongly supports the malicious nature of this PDF.
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/pify?keyword=behavioral+economics+textbook+pdf In PDF document text
- http://files.nayadaya.com/uploads/1/3/0/9/130969037/5835489.pdfIn PDF document text
- http://files.orderzeroirving.com/uploads/1/3/0/7/130776743/futetav.pdfIn PDF document text
- http://files.koorsmusic.com/uploads/1/3/0/8/130814611/gisusidodom.pdfIn PDF document text
- http://files.exuviateesthetics.com/uploads/1/3/1/6/131607522/jabob-lanazu.pdfIn PDF document text
- http://dupixeb.rubeenaratcliffe.ca/uploads/1/3/1/1/131164250/zonapubologovotadale.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/1/0437/7211/7141/files/rurigowa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7545/2569/files/d_d_5e_hobgoblin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0685/9163/files/caracteres_japoneses.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34515707504.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9793/0393/files/mr_probz_waves_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1888/7068/files/forisobakozitizasok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6495/8879/files/13295188793.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/punafaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9378/6791/files/wexuvafepoxuru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5987/9841/files/riragifopidabenisuvulufi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2677/5196/files/50372428178.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0496/0676/files/buzalubazofamaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1588/9305/files/85416934601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2314/5896/files/84555205732.pdfIn PDF document text
- https://unsplash.com/photos/m2iqRdVGprUIIn 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_off00006f7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F7F | 5564 bytes |
SHA-256: c792493edefe1fdc3c3bad87eed2bd8db2b44efb00a6680e59d3379f8f088423 |
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font_01_sfnt_off00008238.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8238 | 10316 bytes |
SHA-256: 533f0b266984c1ccaa4519af73b0bbdb18469efc3481285eb2562a8a55810f6d |
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font_02_sfnt_off0000a570.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA570 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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