MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple PDF-specific heuristics related to link farms and compromised uploads reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://greenworx.eu/images/uploads/files/dejewoki.pdf
- http://miass.realxenon.ru/uploads/files/bobozidibonologe.pdf
- http://viettelhaiphong.me/data/dulieu/files/92610363311.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/45340c310c8425fb84afbf45e58b7e00/43984475577.pdf
- https://mcq-exambd.com/app/webroot/ckfinder/userfiles/files/67683995282.pdf
- http://baloneacessorios.com/_upload/file///jipavode.pdf
- http://tyros-club.de/userfiles/file/61349366502.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/4fdj4ove0e5kkj9hoq0m969f92/pawubovugusamudoraj.pdf
- https://inoxquochoang.com/app/webroot/files/images/pages/files/fivufugi.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613945e3ca1e6---vuwet.pdf
- https://salvamontbihor.ro/app/webroot/files/userfiles/files/pimajifuvi.pdf
- http://misr-consult.com/userfiles/file/44703342267.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/fff44b5728a545cfcd2948aaea7e0221/93808626749.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/926a67lc185k543u97j484gtp3/40670187155.pdf
- https://nomortiga.com/contents/files/18076110217.pdf
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/4a05f6b194f602cebd339a74719079f4/mivabedugabasikifud.pdf
- http://opusincertum.it/userfiles/files/wutofujunuwi.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efd1e7bdcf---59575399055.pdf
- http://fcraregistration.com/UploadedData/file/towifetatavapogoja.pdf
- http://sage-chem.com/image/files/20210901_172258.pdf
- http://stl-hk.net/userfiles/zegukoxogopelugubu.pdf
- http://weiken-rc.com/upload/files/jodumubalalevadegapano.pdf
- https://shellserva.nl/docs/Image/file/58694138609.pdf
- http://technocom.pl/editor/file/2674941642.pdf
- https://kuni.ro/app/webroot/files/userfiles/files/86689606470.pdf
- http://hoanggiaphatland.com/uploads/image/files/18504846390.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=pirate+bay+unblocker
- 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_off0000c11f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC11F | 16792 bytes |
font_01_sfnt_off0000d936.bin01edc518e5e572ccb1470a17da17904d90a20d1cf8f7e8dc7e465cdf8ebde01c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD936 | 10504 bytes |
font_02_sfnt_off0000f13e.bin6bf9e1079b0304883e0e58eea0ba5be705baa33197830aefdc5e96ff5567daea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF13E | 17008 bytes |
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