MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It functions as a link farm, directing users to compromised WordPress upload storage and other disposable hosting sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of numerous external links strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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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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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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://xo-sound.ru/userfiles/file/11730516510.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/20fc748af75da1ac0bec3cac9abe22bc/74347918911.pdf
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/47pa1e954bnj65mavvls7gm0pk/9028105554.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/0021e87132ba29727464b9281a0463fb/nigezotunan.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607aedb64f92b---27498973680.pdf
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/r47lt5d6vsbkqsojbs2v4v5cs5/bejusovusarekorole.pdf
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/caa1882e2da260142172bc101410d978/sabikomo.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/5e6537da0b069ea39e6cef8635399c53/bivegavizugu.pdf
- http://rcot.by/pics/files/19317263981.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0cdf29eafc---88039128220.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160758ff2b5341---rukeminexitubomuguvim.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/5bafaace1665fadda6328cf376c01426/kofusim.pdf
- http://maytinhtuyenquang.com/home/maytinhtuy/domains/maytinhtuyenquang.com/public_html/images/file/89615252770.pdf
- http://m4krichmond.org/clients/3/3b/3bf4c986be49c21931b3574e72fd8103/File/92798547347.pdf
- http://sosonomo.com/ckfinder/userfiles/files/newarerutokejelukuriwapod.pdf
- http://usarsenal.it/userfiles/files/80788351804.pdf
- http://greenbrier101.com/userimages/wujolomaf.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608931ed91148---74338893327.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e1294417b2---lojizutufip.pdf
- http://akcjonariusz.com/UserFiles/file/49189290194.pdf
- http://linuxnewyork.com/draft/media//midagidirobomiseduk.pdf
- http://daegyung.kr/userfiles/file/20210716014949.pdf
- http://www.retorika-zidar.si/ckfinder/ckeditor_uploaded_files/files/sixuwefudekejejogemi.pdf
- https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/04fa58357bb5263e35ec80a8816ab1a0/82361008143.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=novela+os+dez+mandamentos+nova+temporada+capitulo+58+completo
- 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_off0000fa4c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA4C | 16792 bytes |
font_01_sfnt_off00011263.bin4dc3fea69c8d88b915651a7b5212711c5628a659463ec4446a3c6b8b1efdee4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11263 | 11220 bytes |
font_02_sfnt_off00012cb9.bin505cf9009a66aecab7060fd3a02424fb562b5c1023b6c27914b4f57bfb136ae9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CB9 | 19208 bytes |
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