MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/f69ac81806600da27bed1214abffa3ac/dipelufejeta.pdf In PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2bd5617c25---73845563465.pdfIn PDF document text
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/bc3ccldg48t7rnivqjque5lvr5/donawuwukinutizutid.pdfIn PDF document text
- http://townsendrogersfamilyreunion.com/clients/9/91/912616e09393d205379ff76530a10a1f/File/xezizer.pdfIn PDF document text
- https://jamuiboe.com/webroot/upload_media/safupevasaxegedokamobozi.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608529fa906d4---90742029053.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afdca9c7f8c---10411119181.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbb89c3876---89933409580.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f5b4a8adc---tebiwavego.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca9fdbf3c5---41863062191.pdfIn PDF document text
- https://bienenaktuell.com/sites/bienenaktuell.com/files/file/mubupidudatalubomoguwa.pdfIn PDF document text
- http://anhuizpyy.com/upload_fck/file/2021-4-29/20210429022051579042.pdfIn PDF document text
- https://stdtekstil.com/upload/ckfinder/files/jakuxogafagokiresanese.pdfIn PDF document text
- http://ingenermarket.ru/userfiles/26052193319.pdfIn PDF document text
- https://powermailer.in/userfiles/file/bakenotixilunefivikurafur.pdfIn PDF document text
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/4583b8957d6a6d6cef9f2353e35aea52/33253081638.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=sle+criteria+2019+pdfPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d481.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD481 | 5556 bytes |
SHA-256: 73261b51c4568d2e0d7d07d0c328c32b7da49855beb569edd6f66c53e757388d |
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font_01_sfnt_off0000e77a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE77A | 12940 bytes |
SHA-256: 977ce827a73ca7c3f183a48797e751c0edb8c4e59fba70f07102256605e5129d |
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