MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm or redirection mechanism to phishing or malware distribution sites. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the PDF is designed to host and distribute links. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://pixomot.ru/uplcv?utm_term=subject+relative+clauses
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b4da6dc6d33---16863077052.pdf
- http://richardarnoldalumni.com/clients/a/ad/ad1dcfa6f69ac51e3fe6bec18f6cf6d6/File/58382459668.pdf
- http://yevres.fr/ckfinder/userfiles/files/69101796291.pdf
- http://afghansolar.com/userfiles/file/20519934740.pdf
- http://professional-tuner.at/uploaded/file/texemozelutodavanuku.pdf
- http://generaltubi.com/container/ckfiles/files/18353162482.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/0b88a4f03936e8afa0c7206bd57b4d6d/wolibogoxofasabofib.pdf
- http://inglewood1968.com/clients/68690/File/85288967987.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc466535c0---tevodinik.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3b7bce423---90594188080.pdf
- http://adamlegal.com/userfiles/file/42941466364.pdf
- https://aterhesseg.com/up_image/file/874096647.pdf
- https://takitech.hu/userfiles/file/gepejo.pdf
- http://writtenmail.com/upload_images/file/63532513078.pdf
- http://thailaundry.com/imgUpload/files/64784264503.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16106e2944d186---kaxasez.pdf
- http://xn--o79av69abka850ab6c.com/upload/file/202107012116354255.pdf
- http://www.electricman.in/demo/frontend/web/uploads/files/77643473506.pdf
- https://tectrongim.com/uploads/files/31860929274.pdf
- https://hosvagyok.hu/userfiles/file/gubojabenazoguselapodixez.pdf
- http://faurerom.com/userfiles/file/lefutofal.pdf
- https://trsoftyazilim.com/genelresimler/file/joxisosovozusisisako.pdf
- http://brno-skoleni.cz/ckfinder/userfiles/files/12804841038.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_off00011933.bin61d228bf990a3c991bdc7d395dcf13ffa4895026338b213b775cf519d66f7905 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11933 | 10508 bytes |
font_01_sfnt_off00013142.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13142 | 16792 bytes |
font_02_sfnt_off00014954.binbca344373203b06556611703cdfbbff9fa8434ab62f1441abba8dc9ea2f6b058 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14954 | 21616 bytes |
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