MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as a phishing trojan. The document contains a link farm with numerous external links, including a suspicious URL pointing to vilenefex.ru, suggesting an attempt to redirect users to potentially harmful content. The presence of embedded links and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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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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://vilenefex.ru/strik?utm_term=differentiate+between+gdp+and+national+income PDF link annotation
- https://cdn.sqhk.co/zarejesorufo/CZheggh/koan_cary_reviews.pdfIn PDF document text
- https://cdn.sqhk.co/lalivaga/Mhbhegi/merger_gun_jumping.pdfIn PDF document text
- http://gabixumupa.22web.org/musabirenarojogi.pdfIn PDF document text
- https://cdn.sqhk.co/navolakolire/ggdidgf/reveladores_de_placa_bacteriana.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://52468903-0e2d-47c5-babb-61e1d305d291.filesusr.com/ugd/32777b_2d3cdfc08ddf432b9d24519b6c9bcd43.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5188e06a-0276-4f6b-9657-b6b5ecaaaf7d/wodarediw.pdfIn PDF document text
- https://184d393c-d2ff-49e5-bbcb-48626b1dbf88.filesusr.com/ugd/49be48_e6f9f88639e54ca49e80d044c0c70ead.pdf?index=trueIn PDF document text
- https://c2bc7a71-cb21-434c-84f6-8d2fc09ed56d.filesusr.com/ugd/03ae60_c6917f45b7b84cc1b949e53370993454.pdf?index=trueIn PDF document text
- https://510adc33-753b-44c0-977e-8d34da8fcdd4.filesusr.com/ugd/5f4192_0e90f19103bd40328ce175849816fb88.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/955a7949-a814-4ab2-a1fd-7d151d7acf79/11447428369.pdfIn PDF document text
- https://def26600-86c9-4442-a738-094ddf2992d1.filesusr.com/ugd/eb5a6a_e15dd41beba8409dadefeff5b47c8964.pdf?index=trueIn PDF document text
- https://7f03322d-63d6-449b-a8c2-a80beffeb2b6.filesusr.com/ugd/2994dd_edba8c7c62a44ce48c725eb132897fea.pdf?index=trueIn PDF document text
- http://foxivowopejo.rf.gd/29187102044.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/335fb067-a582-48fc-ac8c-ed07907c2f7f/how_can_you_tell_if_an_acid_is_strong_or_weak.pdfIn PDF document text
- http://keporeninudo.rf.gd/chamberlain_whisper_drive_garage_door_opener_belt.pdfIn PDF document text
- https://4f65501f-cdae-4966-b9db-49b15ad9d196.filesusr.com/ugd/52b593_20147fbcbb1c4209b7a4af332861f84f.pdf?index=trueIn PDF document text
- http://zejagal.rf.gd/gofuzivuwikevowabaped.pdfIn PDF document text
- https://b2d1eea7-aef5-47fc-962c-88b5513ecafc.filesusr.com/ugd/3a57bc_79468a9702b444c7bcf42d536f6ce936.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/165d9501-c282-475a-923e-40a02c095dc9/59052630246.pdfIn PDF document text
- https://86146b48-cf95-488a-b5a0-22832f4589a6.filesusr.com/ugd/3b4eee_2a3dfc94cc0a484985537a5f2c7dc70a.pdf?index=trueIn 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_off0000f214.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF214 | 5528 bytes |
SHA-256: fbb7f7435edc3bced16f11cdac459ba06f544a694333fc0822363cf4ee9fde58 |
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font_01_sfnt_off000104e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E4 | 11412 bytes |
SHA-256: 01246223b58d9f4c0af6d0b62cab60497ecb128605f3b27585804571c9ee71c3 |
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