MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users. The document also features a link farm pointing to various domains, some of which are hosted on compromised CMS uploads, suggesting an attempt to distribute malicious content or phish for information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://vibangthuaphatlai.net/uploads/files/44730926311.pdf
- http://kommunikator.nu/demo/userfiles/file///18440243627.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c023248fe4---74151650968.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613e8339c6765---11170714882.pdf
- http://realcomfort.ru/content/upload/file/pokijugefenufotixa.pdf
- http://bmcnx.com/userfiles/file/87999420142.pdf
- https://iieng.org/editor/ckfinder/userfiles/files/pebanuzitolaz.pdf
- http://gat-asset.com/CKEdit/upload/files/gisorugadasimakidal.pdf
- http://jubangh.com/Upload/FckUpload/20210913file///xesukilosuxovaga.pdf
- http://speed-r.com/js/upload/files/96428613477.pdf
- http://vividconcept.in/userfiles/file/nivunopoworevoxafugiboma.pdf
- http://sintjorisparochie.nl/userfiles/file/juwijajizevimi.pdf
- https://siangyun.com/upfiles/editor/files/57870146936.pdf
- https://moolans.com/uploads/files/15764762838.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/5dbeae9617f1949c66f78b5e078bdae6/felozapogijexunifobexaken.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ebb2c8503f---zonoxojarisuwun.pdf
- http://theeultimatenetworker.com/ckfinder/userfiles/files/52768482361.pdf
- http://www.valaisconsulting.ch/file/sabazaju.pdf
- http://rabotatver.ru/userfiles/admin/sejegidumefekekitaj.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613165a667155---58762365192.pdf
- http://maiodi.com/userfiles/files/62436184517.pdf
- http://gespk.com/userfiles/file/gawenimibewelelewexe.pdf
- http://cana.vn/uploads/userfiles/file/99162598752.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=apk+4k+video+downloader
- 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_off0000c7b5.bincb55639e8fda41403cd4ce17e840a434751a1a8b93fb61e13594074ee9b24ed4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7B5 | 17196 bytes |
font_01_sfnt_off0000f453.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF453 | 16792 bytes |
font_02_sfnt_off00010c6a.bin367ace5f5d5f09194d46834ee4a27f9e4e276fd9307b87d77220e5cf51f3fd2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C6A | 10424 bytes |
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