MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a significant number of embedded URLs, many of which point to disposable hosting services and a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to either distribute malware or phish users. The presence of a malicious redirector URL indicates a high likelihood of malicious intent.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://cctraff.ru/strik?keyword=calculo+una+variable+thomas+13+edicion+pdf In PDF document text
- https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/guwepi.pdfIn PDF document text
- https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/raxasiwilabapu-vasek-wuvagukolokuzug.pdfIn PDF document text
- https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/2109233.pdfIn PDF document text
- https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/jelefe.pdfIn PDF document text
- https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/ead64c6e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375199/normal_5f8a1655dc180.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365536/normal_5f87485565b68.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365598/normal_5f88d9ac34913.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371023/normal_5f8a1437ca28c.pdfIn PDF document text
- https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/pagasitadexaxawo.pdfIn PDF document text
- https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/xalumojolawesasuko.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/7754/1281/files/87291577595.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/0990/0183/files/window_garden_kit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/7425/6541/files/juegos_de_un_show_ms.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/8697/7441/files/two_way_table_conditional_probability_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7898/9462/files/25215619053.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/de4382f7-4ec8-4302-b9f6-511f75891d96/27401033493.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72bf03d3-5fac-49e9-b51f-7b5c07ba48ae/66643660100.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ba5ed422-7426-40de-b039-8d64264f7fa1/vulina.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/97d7f4b8-c4a8-4996-907d-f1de07c60465/zegiwakijobes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/95d72a18-0487-4c8e-8a06-70dae6507b01/jupixubasonusogajap.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000058e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58E0 | 5716 bytes |
SHA-256: 7adf32099b98a5ab67879d46b02943b11124bfa30ab41c0623d65cad7a9c6e5d |
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font_01_sfnt_off00006c30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C30 | 15152 bytes |
SHA-256: 9531ba8a65d311725543a7de76b02d0122cb7c85e785871300bc5920f55eccb4 |
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