MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=kitkat+keyboard+apk PDF link annotation
- http://61kidsclub.com/userfiles/file/78119150844.pdfIn PDF document text
- https://mb-classic-service.de/userfiles/file/zajupibutapesezivebuvaza.pdfIn PDF document text
- http://nghieuphong.com/upload/files/12685566372.pdfIn PDF document text
- https://senegal4d.com/contents/files/rukuginiletakoxapa.pdfIn PDF document text
- http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210905043919356345gjvgy0.pdfIn PDF document text
- http://jongauger.com/userfiles/file/zudubirumenizosuwadaku.pdfIn PDF document text
- http://kaithompson.com/userfiles/file/tesolani.pdfIn PDF document text
- https://sailstudy.in/ckfinder/userfiles/files/sunadugabuluxerowinoru.pdfIn PDF document text
- http://vo23.ru/upload/file/feromunibutukitu.pdfIn PDF document text
- http://rollfactorytogo.com/uploads/files/jalur.pdfIn PDF document text
- http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/putenax.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613246d6a7d81---33388991674.pdfIn PDF document text
- http://tecsun-moscow.ru/docs/file/rojivilowizonir.pdfIn PDF document text
- http://snbedu.com/uploadfile/file///2021090708511524.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/seq5o21obdf29ruh4aajgl164n/pepuzagoteratoboxesefotej.pdfIn PDF document text
- http://perfect-gallery.com/userfiles/file/xipapibeve.pdfIn PDF document text
- https://a-metal.e-giant.net/archive/file/files/17722247174.pdfIn PDF document text
- http://cafesezony.ru/fck_editor_files/files/jinodunakuxobefamu.pdfIn PDF document text
- http://proleague.dk/userfiles/file/39449659598.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/d3e98bb47de2fd21ca09eef196477f6b/xalokezodejudokibafinugo.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/kajotikeg.pdfIn PDF document text
- http://ranchobg.com/img/file/sufenefa.pdfIn PDF document text
- 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_off0000eb89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB89 | 10404 bytes |
SHA-256: 1be76f5d046ba540557743209f06a851f1d3c3d180ea2506feac67bfd32c0427 |
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font_01_sfnt_off000102fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102FE | 18548 bytes |
SHA-256: 8175e4bbba2b0ab99ab0c79fe0cd81d5d0f4aa131c7367d3b8c9c251ecffec3e |
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font_02_sfnt_off0001339e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1339E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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