MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting it's designed to redirect users to potentially harmful content. The presence of multiple PDF_URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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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://infrive.ru/uplcv?utm_term=how+to+extract+obb+file+in+android PDF link annotation
- http://cornucopiafrederick.com/uploads/files/burafomitorexe.pdfIn PDF document text
- https://www.institutvzdelavani.cz/files/72213130626.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e45191134---vurores.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/bamasawewawuzufejo.pdfIn PDF document text
- http://synphabase.ch/upload/file/1252664164.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c689607df5---56699536019.pdfIn PDF document text
- http://jakpaisanestate.com/images/upload/files/dozaz.pdfIn PDF document text
- http://minerva-collection.net/files/files/sefopagezovegegoresejuto.pdfIn PDF document text
- http://bn-biz.com/userData/board/file/xugefu.pdfIn PDF document text
- http://king-tableware.com/uploads/files/202109160736578855.pdfIn PDF document text
- http://primaria-ciocirlia.ro/media/file/74073578452.pdfIn PDF document text
- http://szermgrt.hu/uploads/ckfinder/userfiles/files/kajaxafagixajivodewekuni.pdfIn PDF document text
- http://rld-carbon.com/file/99476474772.pdfIn PDF document text
- https://westhigienia.hu/editor_up/70268016824.pdfIn PDF document text
- https://caror.hu/ckfinder/userfiles/files/17670858692.pdfIn PDF document text
- https://somogyplusz.hu/files/8495400543.pdfIn PDF document text
- https://vroa.pl/chplusfiles/file/bomafobapum.pdfIn PDF document text
- http://www.diplomat2014.ru/ckfinder/userfiles/files/2161775301.pdfIn PDF document text
- http://kvbm.org/pds/userfiles/files/fakenejumijudi.pdfIn PDF document text
- http://creatinglifeoptions.com/userfiles/files/bosuveworetumuxopoxuroj.pdfIn PDF document text
- https://mackbeks.com/files/file/5111116489.pdfIn PDF document text
- https://aldaserwis.pl/ckfinder/userfiles/files/69061029496.pdfIn PDF document text
- http://uptownherndon.com/uploads/files/33030141181.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://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_off0000cf04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF04 | 10620 bytes |
SHA-256: 21203518a1d09653ecfcb37b540b136b36cce7ae02b0ac965e299cac65fc8eda |
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font_01_sfnt_off0000e76b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE76B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ff7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF7D | 18460 bytes |
SHA-256: fa67e682891821ee69df247278293b2957d6f0c9004de2d697195c5a247bd75e |
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