MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it likely exploits a vulnerability for client execution. It contains a large number of external links, suggesting it functions as a link farm, potentially for SEO manipulation or to distribute further malicious content. The primary URL observed is https://kuzutuzo.ru/wix?keyword=home+buying+for+dummies+pdf, which appears to be the entry point for this link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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/wix?keyword=home+buying+for+dummies+pdf PDF link annotation
- http://tezijexipilimo.getenjoyment.net/91493714626.pdfIn PDF document text
- https://ribovaboj.weebly.com/uploads/1/3/0/7/130775049/a4193008b.pdfIn PDF document text
- https://zugasunisozabij.weebly.com/uploads/1/3/4/7/134759734/10aac9236c781.pdfIn PDF document text
- https://lidovoji.weebly.com/uploads/1/3/4/3/134313359/5441737.pdfIn PDF document text
- https://mibudixu.weebly.com/uploads/1/3/4/4/134490534/2260460.pdfIn PDF document text
- https://tujurexi.weebly.com/uploads/1/3/4/7/134743655/xerupiwebug.pdfIn PDF document text
- http://fakexexu.sportsontheweb.net/petodigu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://titarejidawe.epizy.com/chiang_mai_city_map.pdfIn PDF document text
- http://lukigek.rf.gd/47450140117.pdfIn PDF document text
- https://5d3a357a-25b2-4459-9cd8-210b235f7b36.filesusr.com/ugd/45e30f_1605437d492a4b1583ed1a76884107ca.pdf?index=trueIn PDF document text
- https://39472683-7d43-4bc3-882b-0947a83fd973.filesusr.com/ugd/544c7e_44970a6b87fd46c39b9fa423438303b3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vuforewebub/77918385647.pdfIn PDF document text
- http://gubadif.myartsonline.com/how_to_make_a_negative_person_happy.pdfIn PDF document text
- http://zakusomob.rf.gd/greece_santorini_travel_guide.pdfIn PDF document text
- https://s3.amazonaws.com/jijumupade/wozej.pdfIn PDF document text
- https://s3.amazonaws.com/fofeguj/what_is_the_weight_limit_for_britax_infant_car_seat.pdfIn PDF document text
- https://73f4d879-981c-49fe-abc7-520f36a14a84.filesusr.com/ugd/b77b08_1dd9d02d2b2d409fa718eefba8f5b6d3.pdf?index=trueIn PDF document text
- http://muvubavove.epizy.com/76861685319.pdfIn PDF document text
- https://s3.amazonaws.com/juvosi/vukigigerevi.pdfIn PDF document text
- https://s3.amazonaws.com/tikofaketonub/ssc_steno_sample_paper.pdfIn PDF document text
- https://a7563df4-ba19-4d82-a8a0-b2470d957038.filesusr.com/ugd/61f964_451620d61d5a4dc6b635fd509a889437.pdf?index=trueIn PDF document text
- https://538d8494-0c7d-401a-b890-0485f6bc7bca.filesusr.com/ugd/29c71c_0b4100cfac7f4a2a9ec3a02d3aa0df9b.pdf?index=trueIn PDF document text
- https://9c43cb74-45e3-47de-9527-fda2e8336169.filesusr.com/ugd/af0aa9_aaefd2e61a7b430ab833cb25880e5b77.pdf?index=trueIn PDF document text
- https://1a2149e7-ca7f-4e7c-a584-0e483de6f3af.filesusr.com/ugd/9219f8_21a2769ea1444f579ab75c9accad0984.pdf?index=trueIn 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_off0000e726.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE726 | 5320 bytes |
SHA-256: 714d290b69f0245c7bf3c2d03593f8a481bade9f14fc3acee7e146b0510c537c |
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font_01_sfnt_off0000f936.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF936 | 10760 bytes |
SHA-256: aa3f1574b52bfd0109dbdd50469f4f6e894f39313be52e742b24fa71cfdc8073 |
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