MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The file is a PDF that contains numerous external links, many of which point to compromised WordPress sites. These sites host other PDF files, suggesting a link farm designed to obscure the final destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 https://medvor.ru/uplcv?utm_term=how+to+sync+contacts+to+email+on+android PDF link annotation
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16140c930dac51---40642306759.pdfIn PDF document text
- http://reliancefla.com/admin/images/file/tovudoretojazopa.pdfIn PDF document text
- https://am-system.eu/ckfinder/userfiles/files/44058586488.pdfIn PDF document text
- https://kurashi-kyoiku.com/cms/dat/upimg/file/62932983202.pdfIn PDF document text
- https://www.edm-medical.net/ckfinder/userfiles/files/dofavipatavu.pdfIn PDF document text
- https://geloracinta.com/contents/files/13172747311.pdfIn PDF document text
- https://svingenieria.cl/userfiles/file/28098359546.pdfIn PDF document text
- http://jr-bang.com/uploadfiles/20210907233026.pdfIn PDF document text
- https://coffeetuanvang.com/Images_upload/files/63848163207.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142c7524b0b1---genepepiri.pdfIn PDF document text
- https://mlspoland.co/files/file/ruzeponodupasi.pdfIn PDF document text
- http://skontrolsengineering.com/file_media/file_image/file/jedapisavilamorew.pdfIn PDF document text
- http://szymonadamczyk.pl/uploads/fck/file/10685245283.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161310b68bae7d---42142335765.pdfIn PDF document text
- http://17njl.com/userfiles/files/jubuvege.pdfIn PDF document text
- https://gyn-koe70.de/obrazky/file/87406341447.pdfIn PDF document text
- https://clifestyle.net/uploades/userfiles/file/40525715039.pdfIn PDF document text
- https://businesslife.com/content/file/xogamozevizapasolo.pdfIn PDF document text
- http://gabinetortodontyczny.eu/userfiles/file/kodiro.pdfIn PDF document text
- http://aedelsur.com/contenido/files/39888643600.pdfIn PDF document text
- https://cr2tek.com/userfiles/Proj_Name/files/marugoregadiwadisepe.pdfIn PDF document text
- https://shevtsov-art.com/uploads/files/sapeturib.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_off0000b446.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB446 | 17476 bytes |
SHA-256: 1955359873ba0501d522f6a3015554cd1b546487689ecffc92cd9a114a10d747 |
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font_01_sfnt_off0000e0e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f900.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF900 | 10720 bytes |
SHA-256: cd24bdcdbfc8f2f53f78688abb9bab580ac7863d914c0a67c9bfcd64b237b0cf |
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