MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The ML_NYX_PDF_MALICIOUS heuristic and ClamAV detection strongly indicate a phishing or malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://cityface.cz/res/file/fixonijupajefopodogugis.pdf In PDF document text
- http://ledseoul.com/userData/board/file/42559748553.pdfIn PDF document text
- https://girl0229960192.com/upload/users/files/84829526534.pdfIn PDF document text
- http://studiodabo.eu/userfiles/files/zamesago.pdfIn PDF document text
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/fe9f261b44835481d8765eb03410f2bb/62964502563.pdfIn PDF document text
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/msn7n6tl8fvdaf23ea47j3o4g0/mitadisogudiparubob.pdfIn PDF document text
- http://autoachtercamper.nl/userfiles/file/73029173924.pdfIn PDF document text
- http://solarissoft.com/img/userfiles/files/jetapedasotikamelofob.pdfIn PDF document text
- https://salonrewards.ca/images/file/18325019819.pdfIn PDF document text
- http://jts-electrical.co.uk/ckfinder/userfiles/files/84483548504.pdfIn PDF document text
- https://www.nickelmarket.co.za/includes/ckfinder/userfiles/files/zerolemisebo.pdfIn PDF document text
- http://kamerton.nl/clientfiles/36731729156.pdfIn PDF document text
- http://lesen-und-schenken.de/userfiles/files/69398846341.pdfIn PDF document text
- https://inprovitecuador.com/ckfinder/userfiles/files/72029146736.pdfIn PDF document text
- https://natyabio.com/uploadfiles/90389301986.pdfIn PDF document text
- http://opsir.eu/files/file/sedoriz.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/161492dd15bd7f---zibikopoxexepidu.pdfIn PDF document text
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/elb8lo61iop2kjm299cr4bn51s/gunubokemaviwelejijowij.pdfIn PDF document text
- http://phukientubepxinh.info/gomsu/sanpham/anh/files/kipipibivewesela.pdfIn PDF document text
- https://kp-bs.ru/upload/files/69440498712.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/25652002053.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=factory+reset+devicePDF link annotation
- 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_off0000b283.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB283 | 10372 bytes |
SHA-256: b1d8246cc0405fb7ef6829369fd6b71a1ad17fdb67a18de5d325da3c2930faae |
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font_01_sfnt_off0000ca28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA28 | 14376 bytes |
SHA-256: 5dbf656a754026c42c02ac4d3f5406cd97799a350a0c14e737144254f0f5a994 |
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font_02_sfnt_off0000edb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDB1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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