MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to websites that appear to be part of a link farm, with many hosted on compromised CMS platforms or disposable domains. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the links, suggesting an attempt to distribute malicious content or phish users through a network of seemingly unrelated sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://ketchas.ru/uplcv?utm_term=monthly+gainers+nse
- https://etonbio.com/newsLetters/images/file/94588969193.pdf
- http://adamlegal.com/userfiles/file/56065170440.pdf
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/im4sqj9targu4o4rb4drr5o9g3/guzad.pdf
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742e1edbb91---84926686723.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160774eb057466---bedug.pdf
- http://sistersaviopublicschool.com/userfiles/file/gutuxiparifevewakodo.pdf
- http://podlahypilat.cz/admin/file/48542736933.pdf
- http://bettynblue.com/upload/fck_img/20210525/file/lesozitiferobasawen.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/9c6aa1d0c097ed56ff243486a58cbc83/9103459416.pdf
- http://muszempilla.com/files/file/kusifuwamopizudop.pdf
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a476220b7e7---dowoxoguv.pdf
- https://agrilaui.com/userfiles/file/76686181653.pdf
- http://hayatteknoloji.com/webimage/file/89976696806.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071f4f929f8a---90535073189.pdf
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/qjgelr7medomjk2pm6p3itsu6r/peguginurojajadovesim.pdf
- http://cafehinglung.com/uploads/files/fenudugunudutaro.pdf
- http://braciszewska-klimek.pl/fck_files/file/85586501673.pdf
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/8da40ab5bc708bcb4a5d8602180c2531/46880416211.pdf
- http://elazentrale.de/images/uploaded/file/vamovebifabixabugat.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f25b1941b7---16256779494.pdf
- https://europartner2.pl/uploads/rududemulenuw.pdf
- http://shinies.ru/img/lib/file/95258281688.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/c37db0f5c881bccf78dc31e2bcab5dbc/5477729512.pdf
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608355152c4cf---gisure.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_off0000dd7f.bin94e15a188089e9cc578de6b0201bada5a048eea665d3bd036a57efe5eda4598b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD7F | 17132 bytes |
font_01_sfnt_off00010a82.bin25e34d6dd2bc4ac3accc334b662082b3140193aa2d07d229d3fc8431021bd589 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A82 | 10492 bytes |
font_02_sfnt_off0001225a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1225A | 16792 bytes |
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