MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document is designed as a lure, using a seemingly innocuous title about replacing brake dust shields to trick users into clicking a link. The primary link, 'https://jacksth.ru/strik?utm_term=how+to+replace+brake+dust+shield', redirects to a potentially malicious site, indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristics. The presence of numerous external PDF links suggests a link farm or phishing operation, and the ML classifier strongly flags this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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://jacksth.ru/strik?utm_term=how+to+replace+brake+dust+shield PDF link annotation
- https://xedowekogo.weebly.com/uploads/1/3/4/6/134609622/8a1914fec.pdfIn PDF document text
- https://xufudigu.weebly.com/uploads/1/3/4/5/134515134/bomijatugur.pdfIn PDF document text
- https://xaxafojub.weebly.com/uploads/1/3/0/7/130738676/a8bbee1bb7.pdfIn PDF document text
- https://wezenazuzive.weebly.com/uploads/1/3/4/7/134764498/bebebudas.pdfIn PDF document text
- https://wilepojaxuxag.weebly.com/uploads/1/3/4/6/134682450/folato-rewuta-tawuwup.pdfIn PDF document text
- https://fexalikinuzumow.weebly.com/uploads/1/3/5/3/135324316/2e1d9.pdfIn PDF document text
- https://zajodufukotu.weebly.com/uploads/1/3/1/8/131857357/4007638.pdfIn PDF document text
- https://womagojewe.weebly.com/uploads/1/3/5/9/135961056/2840634.pdfIn PDF document text
- https://budorezaru.weebly.com/uploads/1/3/4/8/134859022/muvowejokil.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/muxegeza/68755673836.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cef62ee1-eb14-4f14-9654-112c9ea49cd8/xepozajo.pdfIn PDF document text
- https://s3.amazonaws.com/jivagajamav/amman_songs_ringtones_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d8fdef94-8059-4a2e-8e0e-d506e649f07b/harry_potter_books_ranked_no_spoilers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3873af1a-75b6-44d1-a87a-f115c8da0c5e/wubudenu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/535cd683-2b2c-4f60-857c-325115a0562f/10337648371.pdfIn PDF document text
- https://s3.amazonaws.com/wegemebufojafak/how_many_partners_does_the_average_woman_have.pdfIn PDF document text
- https://s3.amazonaws.com/zinudipir/rebatosorupusatar.pdfIn PDF document text
- https://s3.amazonaws.com/taturi/how_much_does_it_cost_to_make_something_with_a_3d_printer.pdfIn PDF document text
- https://s3.amazonaws.com/rujimidujek/56459004152.pdfIn PDF document text
- https://s3.amazonaws.com/kotenu/89521805068.pdfIn PDF document text
- https://s3.amazonaws.com/fajujiju/what_was_the_economic_condition_of_france_before_the_revolution.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e569ffa-c36e-49b0-a06f-f805e6c369e3/python_manual_free_download_for_windows.pdfIn PDF document text
- https://s3.amazonaws.com/zuguvoxoki/coldest_province_in_canada_today.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_off0000ef69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF69 | 5416 bytes |
SHA-256: 300688dd45c4c82f89c1b99193ba245fdbb922f247b84eedfa21e7c589022c76 |
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font_01_sfnt_off000101d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101D2 | 10084 bytes |
SHA-256: 86fa4f3c87b44bb93da0e7a40c06adf050e0695aef9d090c72116f722f8761f9 |
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