MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains heuristics indicating it is part of a link farm and uses an SEO redirector, specifically pointing to 'https://kuzutuzo.ru/strik?utm_term=pou+gratis+descargar+ahora'. The document body, though partially garbled, contains text suggesting a free download lure. ClamAV detection and ML classification strongly indicate malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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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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=pou+gratis+descargar+ahora PDF link annotation
- https://jagewimaw.weebly.com/uploads/1/3/4/0/134012974/bd952f.pdfIn PDF document text
- https://likasitazebiw.weebly.com/uploads/1/3/4/5/134594682/6822554.pdfIn PDF document text
- https://towuzisutodugo.weebly.com/uploads/1/3/0/9/130969847/segewanomunebudi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/jasipefulaxiduj/1774163279.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d8551dff-4871-4d2b-9e1d-e1afdb179d4a/manual_de_la_nueva_gramtica_de_la_lengua_espaola_2011.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/10d4e7ed-d288-41a4-a032-ccac8d30f0b0/how_to_keep_your_volkswagen_rabbit_alive.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8b5a7957-728b-4773-baab-91b9d1392462/22291008255.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5165c646-4881-44d9-9bf9-aadc350fdb98/61185182005.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/65d49c49-32a0-4bc2-9a92-86e30ad52529/social_media_marketing_strategy_template.pdfIn PDF document text
- https://s3.amazonaws.com/jinabom/fexosidal.pdfIn PDF document text
- https://s3.amazonaws.com/medaliwifufugel/what_is_the_main_theme_of_emersons_essay_self-reliance.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe66f12b-6ca6-4c16-8149-8b729bcb2b5b/wulemofupopu.pdfIn PDF document text
- https://s3.amazonaws.com/panalipolifod/34732108911.pdfIn PDF document text
- https://s3.amazonaws.com/tarizirefevifab/sazikizorapunifivuteta.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0efa887c-8bd5-4cc5-a2c3-db6642bed4c6/frases_del_libro_el_amante_japones.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a45695c2-5cff-47f5-ba89-94c30a39d067/how_to_solve_a_2x2_rubiks_cube_fast.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63f0e4d9-d195-497f-9621-f2fb90903f29/resistance_band_workouts_schedule.pdfIn PDF document text
- https://s3.amazonaws.com/zuwosil/tuvenazosajute.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/57c9aa89-e1b0-49ec-8ce8-6c10560cc52c/91966815023.pdfIn PDF document text
- https://s3.amazonaws.com/lixasifasi/mountain_athlete_exercises.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9a59f6e0-3393-40fb-82e5-8c9f8ed34920/garmin_astro_320_dc40_update.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be27721b-065d-4729-bd26-08d33fe5fb3d/first_things_first_cast_2020.pdfIn PDF document text
- https://s3.amazonaws.com/ximupuv/8053227343.pdfIn PDF document text
- https://s3.amazonaws.com/dezajok/movie_maker_app_for_windows_8.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_off000113e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113E4 | 5168 bytes |
SHA-256: dd49eeea18edadd08131919093f27aaedfaed49116c93d6f8ea1bdfe24424482 |
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font_01_sfnt_off00012566.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12566 | 2504 bytes |
SHA-256: bda46a189ab5ca82e9a2dfbdd44eacc5857f8d08cd207523bdafa5b6a969d3e3 |
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font_02_sfnt_off00013049.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13049 | 12864 bytes |
SHA-256: 699db57ffef1fbde43eea0b883e2f34ac7ee7b9de8eab42730110173fc58fa5e |
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