MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress upload directories. These links likely serve to redirect users to further malicious content or phishing pages, a common tactic for distributing malware or stealing credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160918c4ed8ee5---motojagede.pdf
- https://davidfauquemberg.com/home/fauquemb/david/bbdg_site/userfiles/file/10928360277.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1251254861---vetimeto.pdf
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/20575293944.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f452c53bce---botegukinelubisetosoxaka.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160932e4b91f68---rumosuxigitanaga.pdf
- http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/24838531005.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16094a5261aff6---fijipixumapofox.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/20681077eab2d216c308aebca47486ff/90853372744.pdf
- http://kuppersbusch.hu/userfiles/files/2888532134.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160988961806cc---xavuzin.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985b7a82fbc---19103864512.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/133e3f5fc4dda70db834d6be17ee8737/rejexatefi.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/bc28771c6ae9b516cdb1955010df8863/sorotifekomi.pdf
- https://hamzsabegi60szallo.hu/UserFiles/File/45190249831.pdf
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/71199001125.pdf
- http://prime-standard.com/piceditor/file/32661605550.pdf
- http://ibtaker.ps/userfiles/file/43765902690.pdf
- http://www.szphotar.com/admin/img/files/14450618063.pdf
- http://ekotronic.eu/files/file/palimexegigukale.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=journey+by+night+question+answers
- 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_off0000f13f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF13F | 16792 bytes |
font_01_sfnt_off00010951.bin4a2df335a8723a3f9f7d125d3a0ce0349af976307e03eded1beeb8717ecc6ebe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10951 | 16796 bytes |
font_02_sfnt_off000134fc.bin2952b0b22944f66f378d7c4c0fbd53a88f1f7a0837ab1f060c58f31c6abf132c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134FC | 10920 bytes |
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