MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a spearphishing attachment designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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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 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=brother+hl-l2360dw+connect+to+wifi
- https://cdn-cms.f-static.net/uploads/4381737/normal_601f7184cbdb8.pdf
- https://static.s123-cdn-static.com/uploads/4377662/normal_60025b7ef1fa7.pdf
- https://gemunokixelu.weebly.com/uploads/1/3/6/0/136095878/kidipafuvetomaveji.pdf
- https://cdn-cms.f-static.net/uploads/4448539/normal_603e3bfd3f028.pdf
- https://bofakodejo.weebly.com/uploads/1/3/4/2/134265658/jawinoditen-ximadez.pdf
- https://pinozawekik.weebly.com/uploads/1/3/4/5/134589254/dejibodu.pdf
- https://loseseseveru.weebly.com/uploads/1/3/0/8/130813975/828628a4fd.pdf
- http://moxokivotalunuz.iblogger.org/misplaced_modifiers_quiz_with_answers.pdf
- https://cdn-cms.f-static.net/uploads/4446398/normal_604cd160dd26e.pdf
- https://rofinodaki.weebly.com/uploads/1/3/4/7/134721453/sogugixez_xetaruzidina_livixubeges.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/b6b97cd7-7d43-4e70-98f2-b8840b87ba52/xamukapalumuxolaxiz.pdf
- https://s3.amazonaws.com/defujo/template_plan_d_action_ppt.pdf
- https://b7af6bb9-01eb-4839-ab56-764651de4344.filesusr.com/ugd/2486b5_ebf179bf748e4c68878f078d446f964e.pdf?index=true
- https://s3.amazonaws.com/novifamigot/punovevidu.pdf
- https://uploads.strikinglycdn.com/files/9cca0195-34c3-460a-8147-569e1019900c/tadosebuvi.pdf
- https://6346cca1-8be9-442e-91e0-e35201572fa6.filesusr.com/ugd/a8c077_a359ee4686c94508a41464cb044b005f.pdf?index=true
- https://uploads.strikinglycdn.com/files/6c45c900-9066-4895-aefc-c92395a8e9e1/88154861455.pdf
- https://s3.amazonaws.com/lofese/total_coliform_colilert_mpn_enumeration.pdf
- https://s3.amazonaws.com/pojikovewijeja/nadaforeragevugi.pdf
- https://s3.amazonaws.com/tonemakopinibem/what_to_wear_to_a_fight_party.pdf
- https://03df18d0-0a94-4077-8b44-1f3cf8b7c870.filesusr.com/ugd/23a6c3_ffbd7ec7727c477d8ccb0f4f8523d02e.pdf?index=true
- https://uploads.strikinglycdn.com/files/49612762-1f32-40fc-8a02-90c6b269e4ff/merovingian_looped_fibulae_khan_academy.pdf
- https://94db4134-5784-44c5-a63d-963e509970fa.filesusr.com/ugd/9c58c5_1f622b7747124d528d0dd99eeb128af4.pdf?index=true
- http://zerodawoti.rf.gd/jofateganifazawinolawe.pdf
- https://1c92f6d8-19eb-429c-9239-1cf6be91372f.filesusr.com/ugd/cc1a03_72aa7a7e486c4312bcab7e65810c899e.pdf?index=true
- https://uploads.strikinglycdn.com/files/364698ff-743f-4bce-9c9a-99aaaf085a40/wisanovidoxevozujibogegom.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f121.bin399e42680f9f21610fc3a5ee66bb894553f8820e4af97feb8e86e6fe38e58988 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF121 | 5488 bytes |
font_01_sfnt_off000103ee.bind7e2d5664ac0d0b2ca70fee4130486ef96d6529b61c52d8136b976393af9a555 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103EE | 10328 bytes |
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