MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to redirect users to malicious content under the guise of a document converter. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the exploitation of PDF vulnerabilities to execute code or redirect to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/c8875272c7054a751fed16fec4701c90/60388365403.pdf In PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085a04562691---vijenujovop.pdfIn PDF document text
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/fvr9g3lsut7sl45p8i96bbqcj9/giwovilikobon.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/22942700107.pdfIn PDF document text
- https://puppometalli.eu/file/wuwupimakovejijikuziz.pdfIn PDF document text
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7bf2b6adb12bf2d17d77cc0a4a641e32/6402167775.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-5-1/20210501125820689553.pdfIn PDF document text
- https://valerart.com/ckfinder/userfiles/files/97843951700.pdfIn PDF document text
- https://lawyerupsmart.com/tempimg/file/66924024174.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd4e8e9298---roboxojowukaneg.pdfIn PDF document text
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/d893b97b74cfdb0c0771607779aff313/742036598.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160829e054f2ca---73891142414.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/1hrehs9nn8dckarvhr3a6nfjgt/xexolarizolu.pdfIn PDF document text
- http://antifftech.com/uploadfile/file/%5C/2021053114435290.pdfIn PDF document text
- http://mahkotacare.com/tmr/userfiles/files/dezunujojomixu.pdfIn PDF document text
- http://school19-zav.ru/userfiles/file/gidisoderenolejo.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160773ce0a49d6---xumimux.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/FevRqgeaUVY/uplcv?utm_term=pdf+to+word+document+converter+freePDF 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_off0000be2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE2B | 4900 bytes |
SHA-256: 646304ae44bfbd6fa5f0cb23e753a031533a58458b16c4a7e0941a03a67d069b |
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font_01_sfnt_off0000ceda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEDA | 10248 bytes |
SHA-256: 9dc453d239daade6c28e41de22970c8776c5cc3de80859f16ae89cc4de3b8062 |
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