MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The embedded URL 'https://yafferge.ru/strik?utm_term=why+is+my+amazon+kindle+fire+not+charging' is designed to trick users into clicking it by posing as a solution to a common technical issue. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, suggesting it was generated programmatically to host the malicious link.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/strik?utm_term=why+is+my+amazon+kindle+fire+not+charging In PDF document text
- http://toboxifazakun.22web.org/automatic_transmission_service_group.pdfIn PDF document text
- https://cdn.sqhk.co/wanazofemuvu/cRge2Iv/fevevikabamikapuwikigu.pdfIn PDF document text
- http://ziwewixowele.sportsontheweb.net/porisebukaf.pdfIn PDF document text
- https://cdn.sqhk.co/daguvemet/eXhdigp/kasuruleberotalabo.pdfIn PDF document text
- https://cdn.sqhk.co/lolajelor/hi9uNaH/street_basketball_gamecube.pdfIn PDF document text
- http://vaxisezawoged.scienceontheweb.net/vufevizufikebujilin.pdfIn PDF document text
- http://juzisil.22web.org/hillsborough_nc_arrest_report.pdfIn PDF document text
- http://fonixeguga.mywebcommunity.org/protein_structure_stability_and_folding.pdfIn PDF document text
- https://cdn.sqhk.co/rotefuver/gcndijf/nizebafepuvinev.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://4de1274e-a26b-4e71-a0d1-d86f0cfee7ee.filesusr.com/ugd/ee4d88_78f3e0398f354797b7e0d3f48d643b8a.pdf?index=trueIn PDF document text
- http://girafarurogu.rf.gd/dinafolulagimapelajigog.pdfIn PDF document text
- http://potimafekun.epizy.com/lakuwuratolilujeg.pdfIn PDF document text
- http://tozibuxadotoba.epizy.com/numbered_list_indesign_formatting.pdfIn PDF document text
- https://39ad70c8-6a03-4de2-a89b-b0209cba5754.filesusr.com/ugd/d2759c_a5d463303376412f97c8b6b0aaa778cc.pdf?index=trueIn PDF document text
- https://afa032df-bfad-47da-a9c8-c79260182993.filesusr.com/ugd/6f9b04_20c31ce5c1e24e0c9f2a503a3037c743.pdf?index=trueIn PDF document text
- http://givaneja.rf.gd/50499770322.pdfIn PDF document text
- http://vubelifijam.atwebpages.com/83606498933.pdfIn PDF document text
- http://tibofova.epizy.com/beautiful_boy_david_sheff.pdfIn PDF document text
- http://fazafowunop.epizy.com/gekupajupikafebexugava.pdfIn PDF document text
- http://vakoxutosiju.rf.gd/free_download_applied_linguistics_books.pdfIn PDF document text
- http://kirotomi.epizy.com/form_for_lost_passport.pdfIn PDF document text
- http://julifoz.epizy.com/stanley_fatmax_700_charger_how_to_charge.pdfIn PDF document text
- https://9579f988-9383-433c-acf3-5fff76e0c882.filesusr.com/ugd/191a6d_b0f2ca5513ec4884a0d396d9d4e8bdc0.pdf?index=trueIn PDF document text
- http://nononon.epizy.com/83725540378.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_off0000f9cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9CC | 5664 bytes |
SHA-256: bb2c910f8c9e3d0ddc6663021e8a55303a81c882416a88092054f4802ea7af6e |
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font_01_sfnt_off00010d03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D03 | 10408 bytes |
SHA-256: 62cb3cd68b799836467ad0c346a8851d36cfb8e0573d6d370b100efb5812b920 |
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