MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to external malicious sites, likely for phishing or to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://catamma.ru/uplcv?utm_term=manual+cto+10+edicion+pdf PDF link annotation
- https://manorhair.com/uploads/files/202109040807518439.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133ddb092e36---77188469897.pdfIn PDF document text
- https://gmnavarra.es/ckeditor/files/zuwokopug.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161361f6549fe7---dowuvijunomupumifis.pdfIn PDF document text
- http://mallenmediations.com/mallenmediations/images/userfiles/file/83829259826.pdfIn PDF document text
- http://93564497.com/userfiles/xepunotemumobo.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/ab70f3041fa46d87da8705f886b1663d/81577071368.pdfIn PDF document text
- https://camping-du-lac-dijon.com/userfiles/fichiers/garefuserirerewo.pdfIn PDF document text
- http://gist.adrianlechowicz.pl/userfiles/file/63416508402.pdfIn PDF document text
- http://dinobajka.pl/Upload/file/59686925361.pdfIn PDF document text
- https://tcremich.lu/files/files/88444630506.pdfIn PDF document text
- http://sanxuatbanthinghiem.org/app/webroot/uploads/files/1293400408.pdfIn PDF document text
- http://mercuresamuichaweng.com/admin/file/wawijiwomedoget.pdfIn PDF document text
- http://space-edge.com/upload/files/rodisamowunoje.pdfIn PDF document text
- http://premiumcsp.com/uploads/files/63283471541.pdfIn PDF document text
- http://3e-recycling.ru/app/webroot/filesfiles/52409247208.pdfIn PDF document text
- http://handinks.com/ckfinder/images_store/files/zudilasefunu.pdfIn PDF document text
- http://vipforiraq.com/userfiles/files/gikegelebifusafaregajo.pdfIn PDF document text
- http://safaraval.com/basefile/safaravalcom/files/55119058448.pdfIn PDF document text
- http://mabifitness.it/userfiles/files/39099468774.pdfIn PDF document text
- http://loveperfectionschool.com/upload/file/37152015012.pdfIn PDF document text
- http://areawifi.com/DESARROLLO/userfiles/files/legexinalewepalodetibu.pdfIn PDF document text
- https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/gopaxegelok.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/daa01ec84fbf1c1311d575f32018846b/wejovulitiliw.pdfIn PDF document text
- http://stroyvodservice.ru/upload/File/62426098630.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_off0000bdfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDFB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d60d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD60D | 16624 bytes |
SHA-256: 52669756eaf05f52d48cff4ec4dc52fdf893abc5bbf97fb1448c058b43855586 |
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font_02_sfnt_off000100f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100F6 | 10612 bytes |
SHA-256: 7e6a85810afc7a87b0f61f58b307d4e9999d19ee2eb80ad1ddd822eccbe2e6f0 |
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