MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm or phishing lure. While no scripts were explicitly extracted, the nature of the links and the detection indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://clinicaveterinariagussago.com/userfiles/files/53247645666.pdf In PDF document text
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16075117530abd---44902236837.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/ca78apg9krogrhnrmnq6nmfttj/33369194003.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/24ptm4hbs5uqel14gn89is4q66/supegevekizibeto.pdfIn PDF document text
- https://behagi.eus/files/galeria/files/55294424797.pdfIn PDF document text
- http://xn--9n2bn9mz3aba29g44r4o0a.kr/fckeditor/userfiles/image/14373105014.pdfIn PDF document text
- http://supair-lux.hu/ckfinder/userfiles/files/88198705040.pdfIn PDF document text
- http://dailitara.lt/bites/uploads/file/xasafebukiv.pdfIn PDF document text
- https://ajitcoatings.com/uploads/labasizirodetejavojizefik.pdfIn PDF document text
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/e8c3f4eba3561dd10823a02455a97b8c/ratuzutetezali.pdfIn PDF document text
- http://vonschickenfremont.com/uploads/files/feretoja.pdfIn PDF document text
- https://techson-cctv.com/upload/file/rolorojifak.pdfIn PDF document text
- https://yennenga.org/business_school/uploads/file/zaxod.pdfIn PDF document text
- https://baohohoanglong.com/userfiles/file/42490591941.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e8aadec9c---44756965584.pdfIn PDF document text
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607844deab752---52961064478.pdfIn PDF document text
- http://gostinica-domodedovo.ru/files/57891547875.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/29926290734.pdfIn PDF document text
- http://casaledellasignora.it/userfiles/files/fagefavalumejuzevejiwu.pdfIn PDF document text
- https://thinkhigh-tech.com/d/files/6553519006.pdfIn PDF document text
- http://akicgiyim.com/userfiles/file/jeduzaj.pdfIn PDF document text
- http://hengfengpaper.com/filespath/files/20210902082706.pdfIn PDF document text
- http://jiuxingchaoshi.com/uploads/file/311430588708.pdfIn PDF document text
- http://gerd-pollak.de/userfiles/file/528070691.pdfIn PDF document text
- http://toanlinh.vn/upload/files/gumoruvikivuzoke.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=multiplication+arrays+grade+3+worksheetsPDF 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_off0000bdd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDD8 | 16180 bytes |
SHA-256: c66f9fc36f5522852729086e96f225e5a9d39af23c57147c7799160413677818 |
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font_01_sfnt_off0000e6ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6AD | 11352 bytes |
SHA-256: d1dc25232da7e6ea577843576b6021c59a1cabfab212704af748c5a7dadbc00d |
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font_02_sfnt_off0001014b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1014B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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