MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external URIs, many of which point to link farms. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's primary purpose is to trick the user into installing a fake browser update or extension. The embedded JavaScript likely facilitates the download and execution of a secondary payload, contributing to the overall malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://oniceh.ru/uplcv?utm_term=clear+browser+history+chrome+android PDF link annotation
- http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/38774474786.pdfIn PDF document text
- http://top-caster.com/userfiles/file/14636517450.pdfIn PDF document text
- http://youil.org/userData/board/file/60655628283.pdfIn PDF document text
- http://podwierzba.eu/ckfinder/userfiles/files/34989718747.pdfIn PDF document text
- https://sieuthimaytinhcu.vn/upload/files/lisefegijukelefeme.pdfIn PDF document text
- http://ufcnagykanizsa.hu/userfiles/file/81235563244.pdfIn PDF document text
- https://hainutedecopii.eu/ckfinder/userfiles/files/xagofisu.pdfIn PDF document text
- https://e-ssuances.com/ckfinder/userfiles/files/63620725632.pdfIn PDF document text
- http://dr-onesrl.com/userfiles/files/18806261700.pdfIn PDF document text
- http://www.oomedia.com.tw/ckfinder/userfiles/files/14483531070.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161427ad2bf0f6---modarekuvidixelobidegatis.pdfIn PDF document text
- http://umbabox.com/userfiles/file/85288184581.pdfIn PDF document text
- http://reafamily.lt/ckfinder/userfiles/files/13058440091.pdfIn PDF document text
- http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/zuvisela.pdfIn PDF document text
- http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/nipon.pdfIn PDF document text
- http://shengyaweb.com/uploadfile/file/2021090213375746.pdfIn PDF document text
- https://silatur.com/js/ckfinder/userfiles/files/besuwexe.pdfIn PDF document text
- http://agilesolutions.in/uploads/katar.pdfIn PDF document text
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/92025830690.pdfIn PDF document text
- https://www.sterlingsez.com/ckfinder/userfiles/files/valexapukufafapin.pdfIn PDF document text
- https://oxi-dental.ro/imagini_ws/1380813537.pdfIn PDF document text
- http://lagrupacio.cat/file/73944636659.pdfIn PDF document text
- https://ymy-tea.tw/upload/files/xujuniralat.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://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_off0000d199.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD199 | 11004 bytes |
SHA-256: 0154cbc126a8f7efc6696105ed59fb9a174349c900ada4c6fe12020352dd1d7d |
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font_01_sfnt_off0000eb18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB18 | 18032 bytes |
SHA-256: 264827486ab30c9026f4573fbcc77f2797f374cc42649f45e2813c8ab098da83 |
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font_02_sfnt_off00011a2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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