MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs that function as a link farm, directing users to potentially malicious websites. Heuristics indicate these links are often hosted on disposable or compromised domains, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://synerhu.ru/uplcv?utm_term=free+app+for+watching+web+series PDF link annotation
- http://www.pzkexie.com/up_files/file/pivesukirizusojenakufuxa.pdfIn PDF document text
- http://goref.ru/files/file/74340615603.pdfIn PDF document text
- http://beverly.kopanramen.com/uploads/files/ririnob.pdfIn PDF document text
- https://www.puskinas.lt/ckfinder/userfiles/files/36370634185.pdfIn PDF document text
- https://stoneappeal.in/FCKeditor/file/duduwewewim.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/16139182bd04ef---21184065546.pdfIn PDF document text
- http://group-anons.ru/userfiles/files/80899595134.pdfIn PDF document text
- http://tl-maskinfabrik.dk/userfiles/file/gosemavakelufi.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/39373351967.pdfIn PDF document text
- http://aeon-dev.com/uploads/files/202109021556272709.pdfIn PDF document text
- http://orenprom.com/img/account/file/lepuxuzegexiwotiko.pdfIn PDF document text
- http://naszymsladem.pl/upload/file/57914094912.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613544a3450f0---xoxedekigisote.pdfIn PDF document text
- https://bientannamhuy.com/wp-content/uploads/files/64777884400.pdfIn PDF document text
- http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/59428969472.pdfIn PDF document text
- http://ukrkarta.ua/fckeditor/userfiles/file/laroje.pdfIn PDF document text
- https://detskeihriska.eu/ckfinder/userfiles/files/fapatavaputapikabipe.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/noxigarivuri.pdfIn PDF document text
- http://spec-so.ru/sites/default/files/file/ratopunorozatezojubi.pdfIn PDF document text
- https://southwestlooms.com/admin/userfiles/files/nejuleviz.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/dawewiwovikino.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/pogusazowo.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16131202134e62---91209607862.pdfIn PDF document text
- https://pgp-puh.hr/fck_media/file/44876649233.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_off0000cf2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF2D | 17160 bytes |
SHA-256: f5c7f5b088d81bebad3ef6db4f75f4875a4256f4146ed68e1a92b789498a05b3 |
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font_01_sfnt_off0000fbbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBBF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000113d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113D6 | 10916 bytes |
SHA-256: 8f4282940c5e7d1a5636e164875b5d0f614711874ec5359b0c3d55fe63924eeb |
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