MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing or trojan delivery mechanism. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting it is part of a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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://laborke.ru/uplcv?utm_term=how+to+play+double+notes+on+violin
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e8dd4c276---jejazesemarakizexima.pdf
- https://rybczewice.pl/userfiles/file/buxenanelifosa.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/f6fbba31b15f4cbb0decdb8304b1d2dd/68863852475.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160788bab31483---kibun.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160afb180cb879---16435953739.pdf
- https://myphi.biz/nbloom/fckuploads/file/rebodi.pdf
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/160b957e47427b---90027501748.pdf
- http://pinturasoltra.com/images/slider/files/vewafuropinorikusomaxob.pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/1cbd8tv7ctitfmf694ih60fsub/35133437652.pdf
- http://pathtojanna.com/userfiles/files/8013049027.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2917bdfaaf---dizabegoderaxu.pdf
- http://mea-travel.pl/userfiles/file/57778257486.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf87fc21838---gozofipamopi.pdf
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/akgsb0graqqermds2p85uo3t91/59070316989.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1609005e7c7cfa---vumulinaxumuwixaleg.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/8c2a4d62717436e412d578dd6aec4e1b/lubomopen.pdf
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/bjndarquotum9aiijp4tg39d1g/texulefujinobaruvo.pdf
- https://mimpishio1bet.com/contents//files/64485116738.pdf
- http://dobrasekacka.cz/userfiles/file/43517335578.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/1b9078b0badeb4eeaab690da1035cf7a/dexatojuniroseguzom.pdf
- http://sva-jeanroze.com/xmedia/file/28609202946.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086f06047ac3---fitikilisadapesow.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/37fb3ce231290e9b4dbbea88a2285021/mugupomejejomikifajoniba.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001207d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1207D | 16792 bytes |
font_01_sfnt_off0001388f.bincdeac6a15ac7365b4daa052ca3dca8bf568b61b1d4cf4ad1ad4fcbb1f7976ad8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1388F | 17840 bytes |
font_02_sfnt_off00016755.bin97c7cd77ec51005317da4bc45dcc8f55a1a0746ee035958ace78102b0732ba84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16755 | 10784 bytes |
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