MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites and utilize SEO-related parameters. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. The primary function appears to be acting as a link farm to redirect users to external, potentially harmful, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://synerhu.ru/uplcv?utm_term=watch+riverdale+season+1+english+subtitles PDF link annotation
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/c6e9549ec75070129c2aff6c77fdbeb0/tenorel.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/72011424174.pdfIn PDF document text
- http://augustaelectricalwork.com/editorData/file/tejewusugogovixuxibudi.pdfIn PDF document text
- http://hiroshima-teishaku.com/userfiles/file/32218557529.pdfIn PDF document text
- http://mim2010.ru/userfiles/file/vegojusogefapepewize.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1613160790b87a---xasuvekizekoderagoma.pdfIn PDF document text
- http://goldenpeak.it/userfiles/files/sisuzapesasidik.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef7df43964---vodivejoxijadimevelen.pdfIn PDF document text
- http://sarkanyhajo.hu/files/file/zogokoxow.pdfIn PDF document text
- http://ksiclub.org/projects/achievemore/admin/upload/fckImages/file/kuwogezidusifem.pdfIn PDF document text
- https://chokysitohang.com/Uploads/userfiles/files/24830852438.pdfIn PDF document text
- http://mindennapi.hu/upload/file/92029650096.pdfIn PDF document text
- http://massintech.ru/img/outer/files/36367830724.pdfIn PDF document text
- http://pokrowce-ochronne.pl/Upload/file/1589201497.pdfIn PDF document text
- http://www.vandiestbrandstoffen.be/uploads/files/25021960295.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dd87d9101e---fododoviwoxekibig.pdfIn PDF document text
- http://laxycoffee.com/upload/files/86615636066.pdfIn PDF document text
- http://coeb.eu/userfiles/files/xokixudibejusigu.pdfIn PDF document text
- http://solmoda.it/userfiles/files/61882691883.pdfIn PDF document text
- https://dpengineerindia.com/admin/userfiles/file/mowujuxunutowariz.pdfIn PDF document text
- https://esperanzadeavila.com/fotos/file/mamifujarabegumagal.pdfIn PDF document text
- http://smolensk-bakaleya.ru/userfiles/file/daxaremifitirosipu.pdfIn PDF document text
- http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/xewawibumelorodajakifi.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_off0000e957.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE957 | 19984 bytes |
SHA-256: 3cb0bf5919b485d7fc305c6ac6c5e066b78384eca4d35823df215c728d02cc34 |
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font_01_sfnt_off00011d01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D01 | 11000 bytes |
SHA-256: 1fa426a0688a1ed54eaa033686676d42106364b9a034b23659a4fa71c8da26a4 |
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font_02_sfnt_off00013666.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13666 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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