MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many hosted on compromised WordPress installations, masquerading as file uploads. The heuristic 'ML_NYX_PDF_MALICIOUS' and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall pattern suggests a link farm designed to redirect users to malicious content.
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://medvor.ru/uplcv?utm_term=perfect+pdf+to+word+converter+online
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/505d693f5969c5279c6a3a3126ea3dee/bokupegokexu.pdf
- http://seyrimerdin.com/userfiles/file/virazaxev.pdf
- http://arch-teh.com/pic/userfile/wabajexokelozerobikasin.pdf
- https://jahanchart.ir/data/files/file/falog.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e8cbce60e---jozone.pdf
- http://robwalker.net/fckupload/file/soned.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/b4g4asegbta3hqmnkdu90ac7o5/tebezobuduvatolamoromupe.pdf
- https://www.cittadelmiele.it/wp-content/plugins/super-forms/uploads/php/files/dd468246376774d15e5a2b60a3d3c8fd/soxofin.pdf
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7cc33069f8---konimanosot.pdf
- http://buyyoutubelikes.com/ci/userfiles/files/xaluseludatov.pdf
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16096548503858---vegojoregumufiwe.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab2f2f1dbd6---nurubilijizepuvubovag.pdf
- http://tienhasteel.com/app/webroot/upload/files/solemojoxexutonibal.pdf
- http://tanriovermensucat.com/uploads/genel/files/67118257420.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16070b9670f3e3---warabejawakeliduv.pdf
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/tstpnt7lafr6ske6l921vaekqv/29909257870.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160b8204b4bce9---71051209817.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/05a75dee05f132da222e2c0f204f7c7d/rovoxiv.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/5c23853738ea23d646c700d331123941/tirefabilopavitogagekeni.pdf
- https://bbmint.com/userfiles/file/14913333809.pdf
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c334f4374b9---12335871193.pdf
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/34cd42ced6cabcee981f53e1dd8ee47e/52865455895.pdf
- http://diamondsnspurs.com/clients/12200/File/12445830426.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1090d8625---viwavaxovavesadozi.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_off0000d4a9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4A9 | 16792 bytes |
font_01_sfnt_off0000ecc0.bin05a845d451a6a31f531f1639039334ca459519b72e44f1dc7b523d94fca368ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC0 | 10436 bytes |
font_02_sfnt_off0001048c.bin4b15fdcd502fe3ce5c91be58a97a752f60cc624e1cf8c39f4c031997bce70de1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1048C | 16848 bytes |
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