MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many of which point to compromised CMS upload directories and disposable hosting domains, indicating a link farm designed to lure users to potentially malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The presence of multiple unknown URLs suggests a distribution or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 6
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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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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://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160716fdc0322d---50418074582.pdf
- http://md-servicios.com/userfiles/file/nuwod.pdf
- http://sosnovgeo.ru/userfiles/file/90157334464.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075aee40d6a4---sarokeneweragapat.pdf
- https://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/n0b4522r3m0e7ei8cc6ugj7rkb/taditu.pdf
- http://em-mould.com/ckfinder/userfiles/files/73639041793.pdf
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/0cj4b7b9h1838h35rb7eh6r8t3/dobevurexexazilegutusir.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/0fa9f094c8135eb2d4369ec663778b14/buzosobetazafimumikokute.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608bbf7ba9453---21516970246.pdf
- http://akssert.com/userfiles/files/10402212716.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5d46bd020---vumupawiwusin.pdf
- http://archerelectricsupply.com/userfiles/file/zifidusuzidofadepigut.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a04f8eca170---64426330052.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b1975822eff---rujugixixawosowodafo.pdf
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/grnk4luqadneql6pmlm3i9thfj/bewevizuguw.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607678b3c4d47---18887519012.pdf
- http://aaaexpressac.com/userfiles/file/91253366064.pdf
- https://bilalyapidekorasyon.com/userfiles/file/2980586508.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6c6e3749f---23483468731.pdf
- https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/f9fe0e2a6e601a3074afb03cdcf5fbd5/winokuxuwi.pdf
- http://clinicaveterinariailmarzocco.it/userfiles/files/rimerirugozad.pdf
- https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/efdqu3a6rv7p3gkljfo577gt27/nilile.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=essentials+of+business+law+and+the+legal+environment+13th+edition+free+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_off00011795.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11795 | 16792 bytes |
font_01_sfnt_off00012fac.bin9bf4bd8ef09f1a9e57f00bc1d573178ca17c9b0b8b60735d02038a6fc9722d09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FAC | 11544 bytes |
font_02_sfnt_off00014a90.bin481b15297c4a8664825b35032b200b06f7d63067aa9ce32f3db577f46ec1b99a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A90 | 17508 bytes |
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