MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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=list+and+explain+barriers+to+effective+communication PDF link annotation
- http://cephedanismani.com/images/pages/file/60647231076.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0e8b9df76---22645915509.pdfIn PDF document text
- http://wongkungfu.ca/clients/f/f5/f5c316b966f29b3192b3e9e3c5714b3c/File/rusubuwisulibavulopi.pdfIn PDF document text
- http://phunphu.com/userfiles/file/25231740155.pdfIn PDF document text
- https://olivier-daulte.com/ckfinder/userfiles/files/75854083548.pdfIn PDF document text
- http://wjvanderheidedienstverlening.nl/uploads/file/3644958284.pdfIn PDF document text
- https://observatoire-omic.org/documents/file/60368587115.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/161100aed6348a---sufafed.pdfIn PDF document text
- http://zpkprzemysl.pl/ckfinder/userfiles/files/nosifit.pdfIn PDF document text
- http://barcabianca.eu/upload/file/13901201863.pdfIn PDF document text
- http://iphysiology.ru/upload/daxiwulerimefovekikat.pdfIn PDF document text
- https://pbchistoryonline.org/uploads/file/mupetonadelixaxa.pdfIn PDF document text
- http://chemsdano.com/upload/files/vijuwizifubimin.pdfIn PDF document text
- http://hong-tour.com/FileData/ckfinder/files/20210709_A651AFFC581550BE.pdfIn PDF document text
- http://www.addvanceo.info/userfiles/files/savefovalev.pdfIn PDF document text
- https://bandotrading.com/uploads/file/gidoguzuginukewomilon.pdfIn PDF document text
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609ceed0ac891---nizuf.pdfIn PDF document text
- https://stollerco.com/testingsites/advantage_aviation/assets/media/file/2578175147.pdfIn PDF document text
- https://la-klamm.org/userfiles/file/37030300672.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/ob0smqba6o0ntp6v20kmr8ag2q/pazefusakimimuguzositesi.pdfIn PDF document text
- http://koreaseals.com/ckfinder/userfiles/files/xezovudatapowowafidowavi.pdfIn PDF document text
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612351d0b0a2d---95391259638.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_off00013aa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000152b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152B9 | 18744 bytes |
SHA-256: fedc5a3d331d0823d8ab518709b423138723b2efb3e83af8e3f0d7ad067d21b0 |
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font_02_sfnt_off000182d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x182D2 | 11144 bytes |
SHA-256: 38b534594aedea5267b860e517efd93436ead4673e5f2a73af02801bafb79798 |
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