MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external links, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://chcial.ru/uplcv?utm_term=define+the+terms+distance+and+displacement
- http://mcutech.net/files/76839437030.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/7i31q4amq84g6aulvr573ajd7b/67591424780.pdf
- http://tnslib.net/userfiles/files/bifaratoxabez.pdf
- http://midel.me/userfiles/file/fenugawopugejefebeful.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/2555e9b2d15ad8dd927a2ffbeb721b79/1760254681.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160ad03d2e7a17---gegegi.pdf
- https://almoheetmanpower.com/public_html/userfiles/file/89533306882.pdf
- http://beachfirebrands.com/userfiles/file/lazivenopasubigipupam.pdf
- http://maxidmum.com/images/upload/fck/file/94834357636.pdf
- http://mulroyenvironmental.ie/userfiles/file/jotinijotorokedug.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6afc61e313---56568251556.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/h4hl5kjlcigeqjge8gdl79hj0h/27056623590.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c99e958d20c---lediwitibu.pdf
- http://bagliodeimille.it/userfiles/files/82698752085.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/ed6f96dd14e1aa5a931c0243b30556ba/18792824217.pdf
- http://ahchala.com/img/file/jilokafuxefinogifuwovo.pdf
- https://hanurichurch.org/ckfinder/userfiles/files/76719919662.pdf
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe8b4a6088---73438848955.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef06.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF06 | 16792 bytes |
font_01_sfnt_off0001071d.binb477f4b43be6b2e4e9d0e5adece7e7ca62a88a6bfcc8dbab2ae2687f28a6956e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1071D | 10764 bytes |
font_02_sfnt_off00011faa.bin776a2dfdc89138887926602f4a0777c4261b766b174aba26e1456530b4db9334 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FAA | 16292 bytes |
font_03_sfnt_off00013585.binb41c6c4caeb0e8ef7b7725a096b5cb6d6679410e3245241a0154cee55ac15925 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13585 | 17368 bytes |
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