MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious destinations. The presence of external URI heuristics and the ML classification strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://medvor.ru/uplcv?utm_term=chrome+ctrl+shift+j PDF link annotation
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/2a948365a2b4a3624b1c8d101bc47608/zikub.pdfIn PDF document text
- http://fleshlight-tw.com/userfiles/file/ronudojezuxavavawa.pdfIn PDF document text
- https://phm.vn/upload/files/26503626238.pdfIn PDF document text
- http://praguynakorn.com/praguynakorn/picture/datapro/files/84897356614.pdfIn PDF document text
- https://milliondollardesiclub.com/upload_files/featured/files/55520515629.pdfIn PDF document text
- https://get-insurance.in/ckfinder/userfiles/files/tofabozesexesetoxijemuvum.pdfIn PDF document text
- http://greddy.com/admin/common/ckfinder/userfiles/File/lirazakelapiv.pdfIn PDF document text
- http://profstil.az/userfiles/file/ziwuxalidazupereluve.pdfIn PDF document text
- http://veszpremlizards.hu/_user/file/26215022067.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16133deee4fdaf---jigajokasukaf.pdfIn PDF document text
- https://karolinanowak.com/userfiles/file/wagud.pdfIn PDF document text
- https://99shayari.in/userfiles/files/rizezelexiwutug.pdfIn PDF document text
- http://ventensis.lt/public/ckfinder/userfiles/files/pomedifusikasagojugaketug.pdfIn PDF document text
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137534a24103---43125270323.pdfIn PDF document text
- http://atlonnuri.org/UpLoadImage/editer/files/pedugirimexisakipu.pdfIn PDF document text
- http://avesta-hmora.boj.se/uploads/userfiles/files/55928012527.pdfIn PDF document text
- https://ddnepal.com/assets/userfiles/files/53542444132.pdfIn PDF document text
- https://optimuselearningschool.aels.edu/learning/site/images/uploadfiles/32050859208.pdfIn PDF document text
- http://mmsmarin.com/imgimage/file/46997956426.pdfIn PDF document text
- http://ovecollection.com/royal/admin/images/products/file/56920214807.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_off0000d49e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD49E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ecb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB5 | 10496 bytes |
SHA-256: ae2005e64e3a4f6dd56fa339aba95cd47b6597ae80e36b973c8daf2629ec9983 |
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font_02_sfnt_off00010489.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10489 | 18356 bytes |
SHA-256: 6b038183cbdcf1132a91ba4c79428b5d2c9c9e320e1a2d620e5f7f9b9dbdf5c5 |
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