MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by multiple heuristics, including a critical finding for linking to known malicious redirector infrastructure. The embedded links, such as 'https://yafferge.ru/strik?utm_term=is+killing+floor+2+cross+platform+xbox+and+pc', are designed to redirect users to potentially harmful sites. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often abused for creating malicious PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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=is+killing+floor+2+cross+platform+xbox+and+pc In PDF document text
- http://venatukuberelo.iblogger.org/fuderezotisetu.pdfIn PDF document text
- http://vorusobowa.66ghz.com/98126272099.pdfIn PDF document text
- http://nuvekediporere.22web.org/50085368689.pdfIn PDF document text
- http://tamakar.tech/sabre_dance_piano_sheet_music2l6hr.pdfIn PDF document text
- http://mini-cam1.club/straddling_the_line_jaci_burton_espaol1utdk.pdfIn PDF document text
- http://sibasijiv.22web.org/69189383009.pdfIn PDF document text
- http://uscovidcharts.com/rozutejizi1ogto.pdfIn PDF document text
- http://duxeluwezix.iblogger.org/mulawanenovi.pdfIn PDF document text
- http://nojolavu.22web.org/50444295053.pdfIn PDF document text
- http://bedusopuzal.22web.org/armoury_crate_asus.pdfIn PDF document text
- http://bufenukaje.22web.org/how_to_adjust_kitchenaid_artisan_mixer.pdfIn PDF document text
- http://oneshops.space/94263805626xwz9f.pdfIn PDF document text
- http://sibuvre.com/56735227127sfmcz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://pukupufiribeja.epizy.com/40979920785.pdfIn PDF document text
- http://susupufewowe.epizy.com/simone_beauvoir_livros.pdfIn PDF document text
- http://limepupotof.epizy.com/30554305703.pdfIn PDF document text
- http://niwanabumupe.epizy.com/americas_mailbox_forms.pdfIn PDF document text
- http://wopugizejaru.rf.gd/70190075980.pdfIn PDF document text
- http://melaworogafema.epizy.com/mukano.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eb5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5A | 5816 bytes |
SHA-256: bc396cf2c80cd4797d8778c337eb671213bf7e77efd8c2cc923b94989eb990c1 |
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font_01_sfnt_off0000ff16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF16 | 11656 bytes |
SHA-256: 9d6a6ff89a6b495bb238279aac670d5de42020f295bc7ee3b25de9c59c0acdce |
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font_02_sfnt_off00012557.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12557 | 16204 bytes |
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
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