MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, identified as a link farm. The primary URL, https://kuzutuzo.ru/strik?utm_term=cuales+son+los+alimentos+y+bebidas+saludables, is suspicious and likely leads to malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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 https://kuzutuzo.ru/strik?utm_term=cuales+son+los+alimentos+y+bebidas+saludables PDF link annotation
- https://cdn-cms.f-static.net/uploads/4443594/normal_604b6f4bd5607.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383930/normal_6026da8d08631.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376598/normal_601510d3184c8.pdfIn PDF document text
- https://fevulawem.weebly.com/uploads/1/3/4/7/134714475/4050d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501356/normal_602421da3cef8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481527/normal_6062909993aa8.pdfIn PDF document text
- https://felomadexibeb.weebly.com/uploads/1/3/4/6/134687620/d0dc0.pdfIn PDF document text
- https://zidereromozuj.weebly.com/uploads/1/3/4/6/134602294/e56a9084.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500189/normal_6039f05d0272b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4468572/normal_5ff98701898be.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453337/normal_60249d1ce894f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451737/normal_600b9a83559da.pdfIn PDF document text
- https://xufujakuzizam.weebly.com/uploads/1/3/5/3/135315974/457914.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450724/normal_6036af3a7a205.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415308/normal_5ff4df695122d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471514/normal_5fc8943569e24.pdfIn PDF document text
- https://kaxukododeregoz.weebly.com/uploads/1/3/0/9/130969338/3791057.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459470/normal_600b35fec1c8a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/6ca9f275-e298-4fa3-bfe5-deec29d0ea14/grohe_kitchen_faucet_sprayer_replacement.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3886adc0-c35e-4bee-a8fd-8ae4a261b060/62628534179.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6837564d-0d38-409e-a6ec-4575fcd7fcc6/what_do_you_do_with_empty_sodastream_canisters.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8fb2a44d-eb8f-455d-a3a8-41a0847af89c/dokalumogepapenarir.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_off0001133a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1133A | 5024 bytes |
SHA-256: a27e7a2499f2309c587a486cf73a40f5a0b30b6998cddc3dca20cf9d34e794ad |
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font_01_sfnt_off0001243d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1243D | 12908 bytes |
SHA-256: cb8e742be63b3a4f4aea39867959e382a629c7667740cdfd3a22eb894a99c01b |
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