MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with one prominent URL pointing to 'vilenefex.ru' and disguised as a pronunciation guide. The PDF's structure and the presence of many external links suggest it's part of a link farm designed to redirect users to malicious sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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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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/123?utm_term=demonstrate+pronunciation+guide PDF link annotation
- https://cdn-cms.f-static.net/uploads/4447084/normal_6013ebee43b2c.pdfIn PDF document text
- https://cdn.sqhk.co/butemobe/5aibVge/.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413587/normal_6033f42ce43ee.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480905/normal_60403fd96ec05.pdfIn PDF document text
- http://cancandance.org/assetto_corsa_f1_2019_freevxqa8.pdfIn PDF document text
- https://cdn.sqhk.co/mugejufunij/ijMwQh4/wixasilimipuxuziwafeti.pdfIn PDF document text
- https://cdn.sqhk.co/bujasugawo/V6heifB/vanujegoxaveribazu.pdfIn PDF document text
- http://theporte.xyz/portrait_photography_settingsd809c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412391/normal_5fd8267f46957.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447630/normal_5fef3636a0fca.pdfIn PDF document text
- http://milanomoda-italy.site/patras_bukhari_books_free_downloadab3i8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492257/normal_6036d896cde4c.pdfIn PDF document text
- https://cdn.sqhk.co/pafitevet/fifijzo/bavosixatutuwewinerap.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426954/normal_600506176319e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388274/normal_60430a03d1ca9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489977/normal_5fe22ceba723f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4480142/normal_5ff5ecc40c0d7.pdfIn PDF document text
- https://cdn.sqhk.co/xogeloke/ahhifgj/tebiloxakesojerelapaworu.pdfIn PDF document text
- http://o-karte-kopilka.com/why_did_the_open_range_end9ouwy.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4377403/normal_5ff17a9257f61.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/dofufiri/fourier_transform_in_image_processing.pdfIn PDF document text
- https://s3.amazonaws.com/lofese/2001_subaru_outback_wagon_mpg.pdfIn PDF document text
- https://s3.amazonaws.com/tibanepoxilibud/torexibufote.pdfIn PDF document text
- https://s3.amazonaws.com/risisipajole/dji_tello_gamesir_t1d_-_remote_controller.pdfIn PDF document text
- https://s3.amazonaws.com/befafuni/viturinivaxegabokuvafe.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ecc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC8 | 5240 bytes |
SHA-256: f0c3352348e9e4040217f933d8ed251ad00bfdeb80228e1f02248cd6b6449186 |
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font_01_sfnt_off0000fe7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE7B | 14588 bytes |
SHA-256: 34391b50e8d497a3106bd46332acef6545deaadc48dc34994cc41e40c21758ab |
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font_02_sfnt_off00012da9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DA9 | 16116 bytes |
SHA-256: 6fffb1aeb89666cbcaec4ce24454e19e9ad5757041bd2745d7057949fb60916b |
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font_03_sfnt_off00014285.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14285 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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