MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded URLs, many of which point to compromised CMS uploads and disposable hosting. This indicates a link farm designed to distribute traffic to various potentially malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://cwesp.biz/upload/file/60110722350.pdf In PDF document text
- http://irina-beha.com/ckfinder/userfiles/files/vivafa.pdfIn PDF document text
- http://progfin.pl/userfiles/file/91440435774.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d02dcb09bde---86869734810.pdfIn PDF document text
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/897a3e47a2a07796e4695702aa1e5920/31078251032.pdfIn PDF document text
- http://jucal.es/images/file/raliramububonejete.pdfIn PDF document text
- https://eastmanllc.com/ckfinder/userfiles/files/gebexomezefeluba.pdfIn PDF document text
- http://caphegiabao.com/upload/fck/file/kuvubuxowevurav.pdfIn PDF document text
- http://portalkucharski.pl/app/webroot/media/files/sowujesu.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0336472ae---supovebav.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/1h9aoslhs3e4gg7vrpdvq8fi0u/22111949254.pdfIn PDF document text
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/db4e0f72eca33d38db9172a6fda71944/kepolom.pdfIn PDF document text
- http://infoegrafica.com/userfiles/files/risitifisofedigalelev.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a40c36ba4a5---1744630805.pdfIn PDF document text
- http://womensmentalhealthmd.com/clients/9/9a/9a9ccad1be43d50cbc9928f06550b956/File/63374704531.pdfIn PDF document text
- http://zamokugrofa.sk/admin/fckeditor/file/7338885722.pdfIn PDF document text
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/216ce21272a93e38c28b26e87214489d/21408234512.pdfIn PDF document text
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/7t2bqgg6jmsvpl9vkmb7hpn3qu/17958415618.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16076988b76f73---89859965718.pdfIn PDF document text
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/fa306cd82263803da3185a1abdb8f97f/jevexujesumuvagijop.pdfIn PDF document text
- http://jeyadhurgatemple.com/userfiles/file/nuxojotixunuzutora.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3f327ca3f---wunekowilidegunofowir.pdfIn PDF document text
- https://bibliothequedesarts.ch/ckfinder/userfiles/files/43616172232.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/171283855da09d66121c6a1353e0d287/metajugelodofiga.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086cf2ac86e4---47399015740.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=euro+truck+simulator+2+data+download+for+androidPDF link annotation
- 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_off0000f062.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF062 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010874.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10874 | 17200 bytes |
SHA-256: dfc6b20e84aa8b6c9347e8b8bc0958b46435f413b5b40380c10c7601b13776c7 |
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font_02_sfnt_off00013570.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13570 | 10884 bytes |
SHA-256: 01fb102c0df12075938b2310dfa874c82bc88aeb2c05d31bf91e1ed7959c471a |
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