MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a lure related to upgrading Windows 7 to Windows 10, directing users to external URLs. Heuristics indicate these URLs are part of link farms hosted on compromised WordPress sites, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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=upgrade+windows+7+to+windows+10+with+usb PDF link annotation
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1b9c6d24c---rexodalewaduxutemaneke.pdfIn PDF document text
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/e37331f343201060d0b7f3d5eab495d9/pipit.pdfIn PDF document text
- http://makinsushi.com/uploads/files/56049647104.pdfIn PDF document text
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/e6542375cbfee4bac246728d226b0559/koxugosuze.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609b29a8e92d9---87641883905.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf8a1cab91---zofebizatirok.pdfIn PDF document text
- https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/56bdac421ae76dbbc61ff6572f9ab2ae/54203437505.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16090abde2d6cb---dusigobuzegowizimulaserof.pdfIn PDF document text
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/65c7e6db52a38fe1bb47012ea0581fba/81141392188.pdfIn PDF document text
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091a47965bed---73864292851.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/879748cdc4f4d875c4705c1b8d0c7dff/dokufelesezabotositulur.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160840027021af---33684672273.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/ulivhnfuobeu9qk595b0ajk3b0/28012971241.pdfIn PDF document text
- http://sanders-scottfamily.com/clients/26926/File/jozaf.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/3a7d7bdbaabaf7dee7b38ee61ea1e6fd/fibawakem.pdfIn PDF document text
- http://verdantnorwich.com/clients/3/30/306756bb587dffcd11ca74610d845a16/File/57477711838.pdfIn PDF document text
- http://rosycaffe.com/file/mepomixiwevobofegagudej.pdfIn PDF document text
- http://haozuowenwang.com/imagefiles/file/43592887351.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f335.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF335 | 5688 bytes |
SHA-256: cc84db7a2209232a6c52d4c24c3594147b687e9ebf69c4e9fa5fe56815750d9f |
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font_01_sfnt_off000106ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106AD | 11204 bytes |
SHA-256: a5011105d45037af97818a5230485c66ee02bb3044f9c4daafc6e5de530fd7cd |
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