MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous external links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content. The document's structure and embedded URLs are consistent with a phishing lure designed to trick users into downloading further malware or revealing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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 https://archism.ru/uplcv?utm_term=textbook+of+osteology+by+poddar+pdf+free+download
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/idpd9fmj9snk3cnpae9a3dg947/dewofajonuzimobujirug.pdf
- http://symbioticlifetech.org/attfile/fckimg/file///2021050711122_615684438.pdf
- http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20210617180535.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160746b3b85055---pagedisiram.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c9150cb1c---2934880261.pdf
- http://ptairsupply.com/userfiles/file/26884422779.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/866685e27e04aedcec6f9574fb09759a/vunazugafapufivimikefiduk.pdf
- http://hacoauto.vn/upload/files/76590484634.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/66d77e3b14547eaf3b0dec6297676b30/melemujabi.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/4d25e49155b1fd4b02377f49bcff851f/bujaxoku.pdf
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088b88a346ef---jevizilolasivabebalunom.pdf
- http://www.peretprod.ro/content-images/file/78874043800.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608671cc2e70e---gafudawotasiv.pdf
- https://planet-pvc.com/upload/files/26316694589.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/835c34cb5343799387e9bc120812c8ea/jijitibakiwisozivotida.pdf
- https://binarbaidfabrication.com/public_html/userfiles/file/37508749475.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b2ab419f548---37754568618.pdf
- http://sillajen.com/fckeditor/_upload/file/jabakev.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_off0000e98d.bin5e09cb7d21fcbb8b1f4a4e2d267d56b7e014867d42849d584f618687f28e791d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE98D | 17976 bytes |
font_01_sfnt_off000118c3.binc83a45d17f3c79b14f1779f3f7cae2062b9e5bde0b343cee4b742c3096c59961 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118C3 | 11080 bytes |
font_02_sfnt_off00013272.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13272 | 16792 bytes |
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