MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs pointing to compromised websites and disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the heuristic firings and URL analysis are sufficient to determine the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://nomylo.ru/uplcv?utm_term=present+simple+and+present+continuous+exercises+upper+intermediate PDF link annotation
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609f95f2ba83d---vipivapijezeri.pdfIn PDF document text
- https://egyiksem.hu/uploads/file/19295941418.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16078f71cc17cf---dusepopurevido.pdfIn PDF document text
- http://baraanduliaptti.org/userfiles/file/3333902564.pdfIn PDF document text
- http://stark-tools.ru/images/uploaded/76904369383.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/926248c18b789567bbad5dc481244318/gifat.pdfIn PDF document text
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609db965259b5---kezimomumoxeramifimode.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c328fcc013---paxekosufajuvaj.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/wovinole.pdfIn PDF document text
- https://maility.pl_adresuserfiles/file/23547160487.pdfIn PDF document text
- http://newdimension.su/userfiles/file/tirividetikitowanuzazu.pdfIn PDF document text
- https://2acontractor.it/images/file/sidoki.pdfIn PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2e518e812---633001209.pdfIn PDF document text
- http://steakclubhn.com/campannas/file/24006342188.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b06aa19b13---4280887280.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/jadisusivukaketuzufajuv.pdfIn PDF document text
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607c156ce2921---35193689910.pdfIn PDF document text
- http://lacyfamilyunity.com/clients/2/20/203fd950dafdada58ea32e7b96f0d147/File/60088192258.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_off0000e3ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3ED | 5288 bytes |
SHA-256: 4b7912253d14875ea271f7d9f48960beb42cf649073e146d14126aec33bf8bcb |
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font_01_sfnt_off0000f5d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D2 | 11292 bytes |
SHA-256: dfb85fa9bd4a6a57eebeda0e55bc6799b2351915f7583370f424b22d17ef84c0 |
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