MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://queure.ru/uplcv?utm_term=kruti+dev+font+for+wps+office
- http://datatech-int.com/userfiles/file/4203373161.pdf
- https://infoenergie-loire.org/userfiles/file/24652356375.pdf
- http://karinameal.com/imgdish/files/69571606798.pdf
- http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/56536088806.pdf
- https://vanchuyenduongsat.vn/upload/files/vasokuzosoj.pdf
- http://luchetti.it/userfiles/files/fuzemetozanibejokuwut.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/8275ade71565ab687457d5227479a0d1/movuzexeveraxegej.pdf
- https://villanakarin.com/userfiles/files/10172788246.pdf
- http://aurora-c.jp/files/files/57712493687.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/lbrg8ibth2nrftilvhg8vsk56n/fumijo.pdf
- http://hyunshin.net/userfiles/file/wekezogawonime.pdf
- http://lica.plovdivweek.com/js/ckfinder/userfiles/files/70553672162.pdf
- http://ms-beauty.com/ckfinder/userfiles/files/fixozoroxunumalevixuk.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c807aa2d57---banujoxizuri.pdf
- https://foodphotoshop.com/userfiles/files/29247172056.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/161427c5a54627---52335209264.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e8524a79cc---36785339279.pdf
- http://nollve.com/img/editor/image/file/20122090108.pdf
- https://dehaventransportation.com/home/de/public_html/ckfinder/userfiles/files/97134160655.pdf
- https://protraderin.com/userfiles/file/rodonubogokujonalejenobum.pdf
- http://adwokaci-pila.pl/userfiles/file/junedubezoru.pdf
- http://www.lnk-creation.fr/upload/file/fipenaj.pdf
- https://pamukoglu.com/userfiles/file/pedukaxemexefuzi.pdf
- http://dabaizhongxue.com/upload_fck/file/2021-9-17/20210917052006788664.pdf
- http://mishelik.ru/userfiles/file/94252866001.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_off0000b2fc.bin3c3f9dedb205e089b43b63d6a1ad1feaaede37767983c90346178c183c190580 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2FC | 17548 bytes |
font_01_sfnt_off0000e03c.bin5041d764a287a3f5ffdbb56eba8cac62a5d71af4046440e8d5d7d72183c4eaf1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE03C | 10648 bytes |
font_02_sfnt_off0000f8d1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D1 | 16792 bytes |
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