MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains multiple external URIs, with one specifically mimicking a search result for downloading MS Paint, suggesting a phishing or social engineering lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading a secondary payload. No scripts were extracted, but the PDF structure and embedded URLs point towards a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://vilenefex.ru/strik?utm_term=how+do+i+download+ms+paint
- https://rawowoxok.weebly.com/uploads/1/3/4/3/134309987/vurixipiboferivo.pdf
- http://dogorove.22web.org/48205403906.pdf
- http://thefortykuti.com/9735377315007bkw.pdf
- https://cdn-cms.f-static.net/uploads/4380405/normal_602b9e40c38f7.pdf
- https://jixawapideraje.weebly.com/uploads/1/3/3/9/133997308/lefixevija.pdf
- http://gufelujoziwuki.iblogger.org/is_the_ford_4.6_a_good_engine.pdf
- https://cdn.sqhk.co/bapisolel/fn505Js/apple_classroom_requirements.pdf
- https://kujugozu.weebly.com/uploads/1/3/4/6/134660126/6029882.pdf
- https://xulavuxedipi.weebly.com/uploads/1/3/4/0/134017657/3841299.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://lavodusepigixu.rf.gd/kazijewuwatujufosakiwuvuj.pdf
- https://s3.amazonaws.com/kudefem/futudog.pdf
- http://fukokikedusej.epizy.com/choanal_atresia_vs_pyriform_aperture_stenosis.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_off0000e0e5.bin2b4a58f9ccb0d0727cdd637bd8bf27bb5d46508f93fa198ad89e941270cbaebb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E5 | 5060 bytes |
font_01_sfnt_off0000f219.bin46a0110677a1e03fd6271b6761718c04128a80a99ce245df604c401f8603abdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF219 | 13152 bytes |
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