MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many pointing to compromised WordPress upload directories. This indicates the file is likely a lure designed to redirect users to malicious content or download further payloads. The ClamAV detection and ML classifier strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://inwebjor.ru/uplcv?utm_term=how+do+i+close+my+tabs+on+my+android
- http://olguanaokulu.com/upload/file/26166993806.pdf
- http://sk-uralstroy.ru/uploads/files/loxefezufimuzonuwebuzafet.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614797859d558---duzuparejidinonubibifopeg.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/65221e3399a8247f63717efc92eae11e/63415573965.pdf
- http://celesteandtorsten.wedding/images/file/wigepalanuriziboxivube.pdf
- http://mgrima.com/files/file/15770949052.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161349c472d4bd---43944058028.pdf
- http://www.sintsprev-ms.org.br/ckfinder/userfiles/files/16348759355.pdf
- http://zdrowejaja.com/Upload/file/58594151980.pdf
- https://akvanova.ru/sites/default/files/53386956697.pdf
- http://www.cottagegrad.ru/files/file/63627117734.pdf
- http://movitecnic.com/ressource/site-image/files/folexer.pdf
- https://fotobolfestmeny.hu/mvc/userfiles/file/10927252179.pdf
- http://a-kamen.com/userfiles/file/volawokisepade.pdf
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613859ea09350---zoroxa.pdf
- http://honeystraw.com/uploadfiles/file/96323320602.pdf
- http://hillsdalehorseboarding.com/ckfinder/userfiles/files/nejejaxizinomugeforaxe.pdf
- http://jlm-kg.com/uploads/file/vatifeminagaxodo.pdf
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613447601143f---50032499618.pdf
- https://hkbca.org/UploadFiles/file/20210908010916186.pdf
- http://sasmedm.com/www/js/ckfinder/userfiles/files/60128622633.pdf
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad908c3a69---15923732386.pdf
- http://shahnawazonline.com/uploads/files/14404815164.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142a5d5130ce---46823557961.pdf
- http://tutek.eu/userfiles/file/bupakajigekopizozewimagek.pdf
- http://yucehukuk.com/resimler/files/rusiwumuf.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_off0000dfe7.bindd83e5bf2cbe5ba23a0433e341e4fddb8f14e863b290778cbf833d60e29241da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFE7 | 10864 bytes |
font_01_sfnt_off0000f901.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF901 | 16792 bytes |
font_02_sfnt_off00011113.bin136cd086072c9146da1b7dfdcddb1fddbcadbbe6cc433dfd01bda60c433e08cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11113 | 17772 bytes |
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