MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm, likely used for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing or trojan PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://queure.ru/uplcv?utm_term=topik+essential+grammar+150+beginner
- http://tipiland.net/upload/file/37249412060.pdf
- http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64125913855.pdf
- http://chothuexeninhbinh.net/data/dulieu/files/91373359951.pdf
- http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/3359820698.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/6cf72abcea567c4dd787b0c7161dc617/42242069681.pdf
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/95178124143.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/68a9b5f3fadcbda020cff2a4b4cc1e53/rogewevilobapavanod.pdf
- https://remini.hu/userfiles/file/papozakepoxifamelozil.pdf
- http://jts-electrical.co.uk/ckfinder/userfiles/files/jajenasewufubonixegexu.pdf
- http://canshu.dlzj.net/upload/files/20210921051933723919.pdf
- http://standardamulet.com/files/files/jaruxawurola.pdf
- https://bbpartner.cz/userfiles/file/wuponitesama.pdf
- https://nsck-cykelmotion.dk/ckfinder/userfiles/files/79207152039.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/3761abb65416395ca993fcc835fe09e2/kimebil.pdf
- https://iagclaims.endataclaims.com/ModCoreFilesUploaded/file/dirijorinumaliva.pdf
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/qgk47t8inp66h8sjc8egp65clb/91533363495.pdf
- https://isleo.com/i_photos/file/67268067529.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613502f2813e2---perizag.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a43d3d737b---85219812439.pdf
- http://plafondchauffant.fr/img/user/file/19057000620.pdf
- http://szermgrt.hu/uploads/ckfinder/userfiles/files/zudutinakitogadu.pdf
- https://ksdc.in/userfiles/file/kipizofekego.pdf
- http://rhondachem.com/d/files/43030162466.pdf
- http://www.heatandgas.com/EditorImages/file/tedaf.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_off0000b969.bin65584c6acab32bad549df3d12b46c45da7c935021b913f3dcc699d144da86cfc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB969 | 11100 bytes |
font_01_sfnt_off0000d327.binb34217ae670a07886ce6f5ccdef87ec00b26030dbc480de68568616486b65c69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD327 | 18624 bytes |
font_02_sfnt_off000103f2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103F2 | 16792 bytes |
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