MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and an ML classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting a link farm designed to lead users to phishing sites or malware downloads. The presence of multiple distinct hosts and a high number of links per host further supports this malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9773
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 http://zulassungsservice4you.de/bilder/file/36899448472.pdf In PDF document text
- http://bannermaul.com/userData/board/file/78954423727.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16075d5142b286---16355071926.pdfIn PDF document text
- http://hondatayho.top/img-ngocbao/files/97794988637.pdfIn PDF document text
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/u5o8obkp86t9m4b6oft80mhvr9/33177503786.pdfIn PDF document text
- http://riggi.ru/userfiles/file/kixuxodawuzegivedir.pdfIn PDF document text
- http://livinglearningandworking.org/clients/e/e0/e05af8355f71d8da3aa90f500b9284b3/File/nemifarofokamir.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16082163ee6fd8---94820816787.pdfIn PDF document text
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4c676a0c7e496c39bfb8c93748dc1cf2/96112366377.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/0qa3v696qis3csll0fgi6oolal/fafad.pdfIn PDF document text
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/07d589b8f7a310c771e8045fbfd16f71/54517007722.pdfIn PDF document text
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607cdac9b9e2a---fitixanememovujasena.pdfIn PDF document text
- https://lederstuehle-shop.de/ckfinder/userfiles/files/vasivo.pdfIn PDF document text
- https://ludifrance.fr/userfiles/file/71319420153.pdfIn PDF document text
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1eac7ad4e3---majimuwikeso.pdfIn PDF document text
- https://daks-96.com/f/uploads/files/kugizirel.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a709859f5f0---bevizovuvuwififudapusaxud.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084088667915---59492427165.pdfIn PDF document text
- http://cabinet-blin.fr/ressource/site-image/files/xewegininotese.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a02aea70bd---lobenisoposexij.pdfIn PDF document text
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c96c9ad7327---wewufojopes.pdfIn PDF document text
- http://essuances.com/ckfinder/userfiles/files/damobugoduzepa.pdfIn PDF document text
- http://lorichphoto.com/pictures/file/pefiz.pdfIn PDF document text
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/uaqpiu9s8qe42noamj7nionh7l/dadonotetape.pdfIn PDF document text
- http://houstontca.org/Content/uploads/files/sarabuvukapovusebit.pdfIn PDF document text
- https://kede.org/userfiles/file/65401203605.pdfIn PDF document text
- http://4seasonstours.in/userfiles/file/xenuxirijuwetetifol.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=software+process+cyclePDF 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_off00013afc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AFC | 17108 bytes |
SHA-256: 75c2f2366af3b39d967e25d2a8063c392431bc62c2e7773a1b158f5ab3bb3338 |
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font_01_sfnt_off00016746.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16746 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00017f5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17F5D | 10552 bytes |
SHA-256: d63f722d100e4d97f2e3d227206af247abe5800558f8bff728a3a93d4bc649b9 |
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