MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised or disposable domains, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further support the nature of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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=gta+verification+app PDF link annotation
- https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/ladevazoxax.pdfIn PDF document text
- http://tcsklife.com/filespath/files/20210923000328.pdfIn PDF document text
- http://hcbarrett.com/user_area/file/zipikovesixixolukufipa.pdfIn PDF document text
- https://xn--p3t29jo1ed4o4xw.tw/upload/files/57778245846.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/75747908866.pdfIn PDF document text
- https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/giviv.pdfIn PDF document text
- https://rzfmuhasebe.com/userfiles/file/dotowetokizuw.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6814db08b---fixotosavakoful.pdfIn PDF document text
- http://archiw.gbpopatowiec.pl/img/upload/files/99712292725.pdfIn PDF document text
- http://www.cpiequipos.com/assets/images/user_files/files/89550905495.pdfIn PDF document text
- https://posh.hr/files/24618700765.pdfIn PDF document text
- https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/dca495e735e13e5d1d46d2ddc5611506/tovegogedaselowajixisazif.pdfIn PDF document text
- http://gopherandsquirrelcontrol.com/admin/images/file/puberidojegomizaleser.pdfIn PDF document text
- http://hongdanhaudio.com/luutru/files/sokawewizinugumapur.pdfIn PDF document text
- http://www.cda.org.hk/ckfinder/userfiles/files/bedabijofo.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///fuvepopanogizoz.pdfIn PDF document text
- http://prepearl.com/uploadsfile/40538272729.pdfIn PDF document text
- http://dogable.de/userfiles/file/30069259536.pdfIn PDF document text
- https://ecoolteh.eu/galeria/file/wadojukanokob.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16144fb3bd9a1e---33362294912.pdfIn PDF document text
- https://successstudio.net/userfiles/file/darewomuxozagaki.pdfIn PDF document text
- https://valerart.com/ckfinder/userfiles/files/pamirafuxamujaxisaxewo.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_off0000b6dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6DD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ceef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEEF | 19320 bytes |
SHA-256: 4cdc81f58f59979e7344c147109d9065652e171f973be6a63fe3bf4faf7c50fa |
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font_02_sfnt_off000100d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100D0 | 10364 bytes |
SHA-256: 8f67cce919711654019ce3a581abe4a588cb15dfed1c610ce1aac830f43effb6 |
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