MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, with one pointing to 'vilenefex.ru', suggesting a redirection to a potentially harmful site. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this by indicating the PDF is part of a link farm on disposable hosting, designed to obscure the final destination.
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=guidelines+for+unstable+angina+pectoris PDF link annotation
- http://nuverlites.online/boy_scout_store_oakland_new_jersey7qlmz.pdfIn PDF document text
- https://cdn.sqhk.co/xidupesijij/egfUvhh/war_of_the_worlds_2019_streaming.pdfIn PDF document text
- https://cdn.sqhk.co/fapolokid/3hnhcj6/smart_watch_women_fossil.pdfIn PDF document text
- https://cdn.sqhk.co/letareximo/bMicw3r/85371692307.pdfIn PDF document text
- http://vitetiw.getenjoyment.net/82674853216.pdfIn PDF document text
- https://cdn.sqhk.co/nalawanuxa/Pib73hj/jawidilazusavobi.pdfIn PDF document text
- https://cdn.sqhk.co/dubeminap/e3Ligih/tarupeteturuwas.pdfIn PDF document text
- http://about-central.com/75313527200lulb7.pdfIn PDF document text
- http://nonowun.mywebcommunity.org/31222369005.pdfIn PDF document text
- http://meetsoda.club/how_to_fix_air_conditioner_not_cooling_in_car39xmk.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://uploads.strikinglycdn.com/files/8d138f4d-20cb-4db2-bf98-e0d5436800d6/15158232687.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/043a815b-1915-4005-adf1-97ebb3687498/pafonevupitukusegevima.pdfIn PDF document text
- https://s3.amazonaws.com/sizabo/xovovo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f607b500-7256-4677-9e57-1a9877067a77/all_my_friends_are_dead_book_tiktok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d30a4f74-f8cf-4eb7-a80b-4913196198bf/general_chemistry_linus_pauling_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/43426a90-b64d-4a46-9c10-5d16a4a70c12/notopoluwazonanugubuke.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/922a2912-7cc3-492c-b191-d5d0276005c1/36654238546.pdfIn PDF document text
- https://s3.amazonaws.com/kawotexulozax/82727827572.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ad82dd11-2a28-4ae5-9469-99ae0477036c/jawbone_speaker_bluetooth_pairing_instructions.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5ca7096b-9ed5-4445-9f0e-6754f66c4505/what_is_artificial_propagation_in_plants.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/235af77a-c179-42c3-bb44-c14a9b832a82/65495932436.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001031c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1031C | 5376 bytes |
SHA-256: 6fcce979ad6d0baa8ca0cc69e7099936db7ffe49ae8ce3d44dd7fdca49e8c0df |
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font_01_sfnt_off00011565.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11565 | 10688 bytes |
SHA-256: 7a1613d14b70ec882313be9060dcc0439e956666050c58015542e17e44350549 |
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font_02_sfnt_off00013a12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A12 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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