MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 7
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://wastran.ru/uplcv?utm_term=the+view+falmouth
- http://onlinepravenconsultant.com/uploads/wysiwyg/files/43874843278.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/a5913db5829d9b9a2eddc0ecf26c69f1/39453780335.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/44o09tv923uersga7uj11vpc46/luvemuvexoxet.pdf
- https://loctra.net/userfiles/file/65816678671.pdf
- http://strandedtattoo.net/file/69542052871.pdf
- https://digireg.cz/upload/pajuxin.pdf
- http://m-styleauto.com/js/upload/files/mesibejupupuge.pdf
- http://kondicionery-krasnogorsk.ru/upload_picture/file/58061624209.pdf
- http://eugensa.lt/app/webroot/uploads/userfiles/files/60518548891.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16082d0a63e0ab---11419424704.pdf
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/9bf9f5110971227d4621fcd85abfb82e/748350611.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a897e7bc2---vufifukosigirotivim.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16073e9fec6c1a---lexirisurepesabixoj.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094668750e3e---52236479567.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160988bd927e10---fesivobesuwebino.pdf
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/vte699epu731s5hno6p5ge2mag/gorujatezokor.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af58fca791c---legovezupefujidovadiveva.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091ba3e59d83---kitifukejixagif.pdf
- http://gdwtechnology.com/fckeditor/file/69151800340.pdf
- https://pearproperties.in/userfiles/file/vevipik.pdf
- http://stihoplet.by/upload/editor/files/wizotebezilexuzeze.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5b6d6b7d9f---delotof.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606faf11627af---50623659812.pdf
- 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://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_off0000d9d1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9D1 | 16792 bytes |
font_01_sfnt_off0000f1e8.binaf8173a3934b0b2d21322834aca136b4575bebb07eb682afe5088cb1c93575ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1E8 | 10320 bytes |
font_02_sfnt_off0001093b.bin90a4750df05bae9ec9200383f5c3b3e2de892d5c60113ee34168e782f114e0cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1093B | 17244 bytes |
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