MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised WordPress sites or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://catamma.ru/uplcv?utm_term=how+long+are+chicken+wings+good+for+in+the+freezer PDF link annotation
- http://gps-tw.com/CKEdit/upload/files/riworamesifavepejegexap.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/756b2193a0d19a4bf1efc033f47714e7/2880419552.pdfIn PDF document text
- https://tidurmalam2.com/contents/files/7617026973.pdfIn PDF document text
- https://unitytradecapital.com/ckfinder/userfiles/files/leranuzosu.pdfIn PDF document text
- https://www.afoa.org.ar/backend/ckfinder/userfiles/files/taxisufosasafolimulaf.pdfIn PDF document text
- http://playitdirect.ca/ckfinder/uploadfiles/files/galajatuvomefizixeja.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/37594862514.pdfIn PDF document text
- http://epoch-making.jp/js/upload/files/3956735735.pdfIn PDF document text
- https://store-connector.com/_upload_bilder/_filemanager/file/lojupuredoralofup.pdfIn PDF document text
- https://www.thic.net/plugin/ce1/ckfinder/userfiles/files/fodemekutatuponuvo.pdfIn PDF document text
- https://oferta.lt/i/File/77422963987.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16142b4e401b7e---xupewo.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16131b1a294f6b---18272153965.pdfIn PDF document text
- https://www.blondel-bois.fr/ckfinder/userfiles/files/pakunujuximo.pdfIn PDF document text
- http://sh-songshi.com/admin/upimg/file///jigurabowux.pdfIn PDF document text
- https://samajsutra.com/userfiles/files/xotonifozake.pdfIn PDF document text
- https://atrax.hr/files/12682200639.pdfIn PDF document text
- http://geluidsadviesnederland.nl/ckfinder/userfiles/files/wuxegulovofebevefezibipa.pdfIn PDF document text
- http://leebyunghun.kr/new/upload/board/files/61500460968.pdfIn PDF document text
- http://ghinelliarchitettura.it/userfiles/files/gafowexizebiwizedeli.pdfIn PDF document text
- http://www.letnifestiwal.pl/ckfinder/userfiles/files/lugirewodusopodogi.pdfIn PDF document text
- http://itcck.org/upload/editor/file/12240797064.pdfIn PDF document text
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cc88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC88 | 17760 bytes |
SHA-256: 78bc05e9fab4abdc7d79a98925ec837d45a106c2807549121e2afcd7d87f93e8 |
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font_01_sfnt_off0000fad8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAD8 | 10984 bytes |
SHA-256: 77cf771b8e0a881fe1a091421aac2fa8fdacc86fadfaf318430466e0a4b3923a |
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font_02_sfnt_off00011425.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11425 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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