MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The file's structure and URL patterns are consistent with a malicious PDF used as an initial lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://ketchas.ru/uplcv?utm_term=cours+de+droit+civil+des+biens+pdf
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4edef0ec5---jodamabolamitegini.pdf
- http://clubsahdianagalati.ro/upload/editor/file/70677464772.pdf
- https://netpage.info/userfiles/file/rokopaladidarewinixi.pdf
- https://globalybm.com/ckfinder/userfiles/files/1627959451.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4206f8093b---robonipagevevizakusawe.pdf
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d0938e2ff---rerowobagatavoduj.pdf
- http://champagne-marc-chauvet.com/images/files/78827302568.pdf
- http://everest-c.ru/ckfinder/userfiles/files/20111962723.pdf
- http://pinturasoltra.com/images/slider/files/badatadefa.pdf
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607001b1c7359---64969152916.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/ebc5e60585862351338d6f6f0605c687/83254218243.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/d1d45687f0e1500b641ff90d7b4a0f9f/28065796883.pdf
- http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160989d6289b10---8753637886.pdf
- http://bora.su/ckfinder/userfiles/files/zubufopi.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/16nt3k1j9pb8ctappic31k7skg/kojekovasafokuwero.pdf
- http://phutungvespaco.com/luutru/files/luzosivodixibobupozuli.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f265890a6---wewoximetedijuxuja.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094671ca3d11---55282658128.pdf
- http://ilkemymm.com/image/files/raluferuximukifoxava.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bffd8da41f2---fepiribesubegajejoro.pdf
- http://xn--989ap7r0xbd5x.com/upload/fckeditor/file/soregavuxije.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/5d1e33e1c8cac23f9b4281a1caa378fc/82315181133.pdf
- http://rustproofingottawa.com/userfiles/file/80373070887.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_off0000f2d5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2D5 | 16792 bytes |
font_01_sfnt_off00010ae7.bin801b63e637db5b0b096a3b0fb4c1c695066b477dd5833e84c6e42c81f82bd60a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AE7 | 22116 bytes |
font_02_sfnt_off00014219.binb8ad10b77185bf80c8904af984dd21df2a10811a61773032af3eb7ccdf08e4c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14219 | 10788 bytes |
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