MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external links, with several heuristics indicating it functions as a link farm. Some of these links point to compromised WordPress upload directories, suggesting a potential distribution point for malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=top+10+car+racing+games+for+android+offline PDF link annotation
- https://aymfly.com/aym_image/files/14602720083.pdfIn PDF document text
- http://drsuthichai.com/userfiles/files/gotamavekokegasemobe.pdfIn PDF document text
- https://108pizza.pl/uploads/userfiles/files/27372529987.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/78430088350.pdfIn PDF document text
- http://yuh-tarng.com/userfiles/file/femenijolozipo.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139ab46e5317---53338801113.pdfIn PDF document text
- http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/12727143883.pdfIn PDF document text
- https://ecoverservice.be/gallery/file/fizikibabozejimi.pdfIn PDF document text
- http://www.mbk-montage.nl/ckfinder/userfiles/files/82172970980.pdfIn PDF document text
- https://corianderedmonton.com/ckfinder/userfiles/files/10513999891.pdfIn PDF document text
- https://ms01bet.net/contents/files/ginodixe.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/zonobetevudazuwuza.pdfIn PDF document text
- http://klinok-saintp.ru/files/sifuvefixutiwizufoxu.pdfIn PDF document text
- https://derfo.info/resimler/files/dezeremuxujiledu.pdfIn PDF document text
- http://casauthienan.com/fckeditor/editor/filemanager/connectors/php/temp/file/sixakarobavu.pdfIn PDF document text
- https://aluminiosarla.com/userfiles_arla/files/55439849794.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1f2c243ed---55497736966.pdfIn PDF document text
- https://highrise.pl/file/dumebewa.pdfIn PDF document text
- https://paeonia.ch/userfiles/files/61733355246.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/161423fccbcbbe---94694374001.pdfIn PDF document text
- http://pescepiana.eu/userfiles/files/25864310354.pdfIn PDF document text
- http://rocincorporated.com/domain.com/images/dynamic_pages/file/sosirux.pdfIn PDF document text
- https://mimpiindah168.com/contents/files/xisigorem.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bda7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDA7 | 18524 bytes |
SHA-256: f3195e8de98944b57c72b73acd00f1242aeffb4c2dae22fdae12387f295529c8 |
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font_01_sfnt_off0000eda2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDA2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000105b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B9 | 11000 bytes |
SHA-256: 559142c09a8b92725dc3a1d286b781e3bc9055aac3e935636a5298e6128edbf0 |
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