MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, with several heuristics indicating it functions as a link farm. Notably, some links point to compromised WordPress upload storage, suggesting a potential distribution point for malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9800
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 http://boilerservis.ru/uploads/files/44261581137.pdf
- http://meta-min.com/files/parosapefubufutovi.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160729516912b3---71968063876.pdf
- https://accesoriosalmayor.com/images/userfiles/file/wuxeveduzefesu.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/16085020c89129---refupo.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/f5ruduf0q4hpmtqjkulecoteg6/55948448480.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a96ed34dacb---26688933324.pdf
- https://latework.cz/soubory/wofigowizarik.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4b07244ae---nomedowa.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac01975149e---96328648682.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c56cc21ec2b---raxowulugobovagut.pdf
- http://www.verneteco.com/ckfinder/userfiles/files/relomikipigaredepo.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c28dfaf247d---36599077356.pdf
- http://indovinandoilmondo.it/themes/userfiles//files/5622357230.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/3be089f359ead3b4e15fedf3066caa0a/39989408468.pdf
- http://kosmonautika.ee/ckfinder/userfiles/files/17322460015.pdf
- https://almoheetmanpower.com/public_html/userfiles/file/45332908239.pdf
- http://enjoy.sk/editor_uploads/system/files/52763592108.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ad95952b3d8---38285248746.pdf
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/bc121b148570854ff03b9435cda6a96c/75133324888.pdf
- http://alpha-th.com/userfiles/file/69092258590.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/d7bfe528ea06aa5b4c35a9d805b9a83b/nomot.pdf
- http://archerelectricsupply.com/userfiles/file/79214937975.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/6a637f8f7cafb63b70a5c597b99982b5/pejamipavenifavuled.pdf
- http://global-insurance-broker.de/downloads/56182540201.pdf
- http://microsolder.hu/userfiles/files/tojow.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=free+pdf+submission+sites+list
- 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_off00012241.bin94bfa196dc3742735aeb6505ce6d51aa219390c40efd6bd756c500142d8d2fad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12241 | 17184 bytes |
font_01_sfnt_off00014ec0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EC0 | 16792 bytes |
font_02_sfnt_off000166d7.binfb98dd8b49823e22469e82d4d49374edac6a174680f5f66165b6c17f08fe1987 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x166D7 | 10712 bytes |
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