MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous external URIs, including a suspicious link to 'vilenefex.ru' and a direct PDF download from 'urologo.store', suggesting it's part of a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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=cbt+worksheets+for+anxiety+uk
- http://urologo.store/dufipanulubuzijy4zc2.pdf
- http://lnstagramverifiedsbadgeform.com/futekefenir20fpv.pdf
- http://budokudepa.scienceontheweb.net/depazoge.pdf
- http://kutakelipaxeb.22web.org/dingbats_examples_with_answers.pdf
- http://pc-remont.website/siwubeporusa13jwy.pdf
- http://ag-management.space/kepofifav4joau.pdf
- http://rezltml.xyz/best_construction_project_management_software_for_small_businessv44k0.pdf
- http://tokio-2020.fun/wosomop93f81.pdf
- http://uuuuull.space/what_is_humanism_theoryqe7b1.pdf
- http://desokore.medianewsonline.com/convert_in_word_document_free_online.pdf
- http://silkhfig.bid/20435735909v4bmz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://b1b1ed1d-a631-407f-b8a0-2f609481a9c2.filesusr.com/ugd/3e5895_b925fe8a34534fcd9cc4c5eb458d8687.pdf?index=true
- http://gozebodene.rf.gd/29451023144.pdf
- https://6b2d4799-12fc-456d-8881-596234ac9a0a.filesusr.com/ugd/ae8ff6_d2e65a321e84416983481d334f96473f.pdf?index=true
- https://5ee0d2ad-6486-47ce-ab7d-0e7b2bae4193.filesusr.com/ugd/bc0d1e_570fa431bbf8474f8500926f797ace9a.pdf?index=true
- http://rixibedi.onlinewebshop.net/polo_ralph_lauren_coupon_2021.pdf
- https://8d59741e-369e-44be-b01e-8fbcb09d2d01.filesusr.com/ugd/7cefa9_bed7a9e3d9304638acbcd7d71c00a0c5.pdf?index=true
- https://0ac950e2-707a-4e47-8bf4-daface0ea9db.filesusr.com/ugd/356f11_cb5dd088c39a493193ea5d65fbe15dfb.pdf?index=true
- http://wolobugoxew.myartsonline.com/zisuvomufotufuluzamudu.pdf
- http://rafodize.rf.gd/ninelekozo.pdf
- https://c01188fd-d8af-4b86-846b-090f7ecd58d8.filesusr.com/ugd/9058e5_dd23950124e146489cebcd9fd7acd2e1.pdf?index=true
- 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
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e577.binc98c2f7e44d98f525b4e29667c0adcb0df3dfcbf7d968f62b5e001b9f3cb9d7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE577 | 5192 bytes |
font_01_sfnt_off0000f735.bin29f6cb55e4c030b869a5594feb5c6f4879066b17a9e2a7466075e7daa284879a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF735 | 10948 bytes |
font_02_sfnt_off00011cb9.bin31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CB9 | 16204 bytes |
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