MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 7
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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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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://medvor.ru/uplcv?utm_term=steve+harvey+act+like+a+success+pdf
- http://mamaskitchenorder.com/uploads/files/63825146658.pdf
- http://veiligheidsslot.nl/ckfinder/userfiles/files/90979027813.pdf
- http://nayyaralidada.com/alpha/ckfinder/userfiles/files/tegona.pdf
- http://boras-sjuharad.boj.se/uploads/userfiles/files/75817016171.pdf
- http://benrassam.com/uploads/files/4050955236.pdf
- http://gekon.net/userfiles/file/67739116413.pdf
- https://nergizleryapi.com/image/files/verolobizuvakeven.pdf
- http://ebbers-schilderwerken.nl/uploads/files/masopubagagumesoralagu.pdf
- http://xn----7sbndn5at.xn--p1ai/uploads/files/zoxuzufim.pdf
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/i0udb5i22qmm2kcd5ienjl80hc/wilidetat.pdf
- http://lica.plovdivweek.com/js/ckfinder/userfiles/files/74306352481.pdf
- http://imhang.com/fckeditor/userfiles/image/31392064412.pdf
- https://maurinet.com/userfiles/file/wifupukuwil.pdf
- http://frutapac.es/ckfinder/userfiles/files/ravowetuja.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614450bbf2a1d---gogunitofubujep.pdf
- http://rosesrealtyhomes.com/userfiles/files/23438312096.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/8c4cbc969ecd967d9ebaf7218c276fd2/gakukukenopopuja.pdf
- http://realfootball.gr/userfiles/file/zovonomunamabokizojopadim.pdf
- http://asztalosweb.hu/userfiles/file/24766900425.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16140ae283fccc---nudexirilitopiwuj.pdf
- http://ourdesign.hk/ckfinder/userfiles/files/64740802969.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef7d2ad501---50702018204.pdf
- https://cafeau1ait.xyz/js/ckfinder/userfiles/files/86967567145.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_off0000db16.binca017c3481575267ec06152d9871c76a8b7737b5185b7005a2a10da2913257a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB16 | 10940 bytes |
font_01_sfnt_off0000f498.bincb044d04fd3fe9140d14abbf0b8104a13218262da9a173cd48006c8116ee968d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF498 | 18268 bytes |
font_02_sfnt_off00012353.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12353 | 16792 bytes |
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