MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which point to suspicious domains and are likely part of a link farm designed to redirect users. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, suggesting the PDF's primary purpose is to host a large number of links to potentially malicious sites. No scripts were extracted, but the overall structure and heuristics point to a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://bientannamhuy.com/wp-content/uploads/files/sevimamixepi.pdf In PDF document text
- http://tincorner.vn/uploads/files/41612040218.pdfIn PDF document text
- https://classconnbio.com/img-jacson/files/36603366089.pdfIn PDF document text
- http://natpuedu.in/userfiles/file/fibidakebunulifudib.pdfIn PDF document text
- https://anitacalderon.com/ckfinder/userfiles/files/49296031497.pdfIn PDF document text
- https://zhansq.cn/upload/file/buzuxusenafi.pdfIn PDF document text
- http://solis.altrodesign.eu/ckfinder/userfiles/files/wesuxenixev.pdfIn PDF document text
- https://dialogueinpraxis.net/files/docs/lijusabasamenuli.pdfIn PDF document text
- http://ambulatorioveterinarioilprato.eu/userfiles/files/tavopoposilumokekosor.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/bokisa.pdfIn PDF document text
- http://telegid.tv/userfiles/file/diduzosukelep.pdfIn PDF document text
- http://briquettemachinery.com/d/files/5578596764.pdfIn PDF document text
- http://zenkatsu.dk/files/favebasakijovar.pdfIn PDF document text
- http://herium.net/FileData/ckfinder/files/20210918_81E5D2D7459515A7.pdfIn PDF document text
- http://ascensionchina.com/userfiles/file/gowefugufarigejupilimup.pdfIn PDF document text
- https://nirkongrp.com/ckfinder/userfiles/files/mavuv.pdfIn PDF document text
- http://kursadowicz.pl/Upload/file/muvebebo.pdfIn PDF document text
- https://likeevent.it/writable/public/userfiles/file/ribojaxopexugagivof.pdfIn PDF document text
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613634e331f61---2016721809.pdfIn PDF document text
- http://siripanyalamphun.com/user_img/files/derijaxoto.pdfIn PDF document text
- https://goodnest.info/tctt/sites/aaa/file/90997457928.pdfIn PDF document text
- https://globaldreamindia.com/webcms/file/zerofodebaloboko.pdfIn PDF document text
- http://mishelik.ru/userfiles/file/wumowuvutuli.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=web+android+studioPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e27d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE27D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA8F | 18496 bytes |
SHA-256: acb2ec6a5f5a37cbaddad8f90cf35afb70910697f97a99a38a7154e9bdfdd3ff |
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font_02_sfnt_off00012b8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B8B | 10428 bytes |
SHA-256: 31483b581d302950a599530d6dca819b6bd47962185e81c1bd8757fac06db546 |
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