MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to a mix of compromised CMS uploads and disposable hosting domains, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. The presence of 'utm_term' parameters in some URLs suggests tracking or redirection mechanisms common in such campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://nomylo.ru/uplcv?utm_term=sat+math+questions+pdf PDF link annotation
- http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210909015956.pdfIn PDF document text
- http://stnicholasway.com/userfiles/file/89313020226.pdfIn PDF document text
- http://greenglobepms.com/uploads/27935222398.pdfIn PDF document text
- http://www.catedralirodahaz.hu/data/editorfile/nufuzosarusozuxarukajowad.pdfIn PDF document text
- https://dbmotorbrokers.com/userfiles/file/58621713579.pdfIn PDF document text
- https://2winit.com/Files/files/2747702398.pdfIn PDF document text
- http://autofox.lt/ckfinder/userfiles/files/pezudeninitimifodaje.pdfIn PDF document text
- http://yuanhebiotech.com/upload/files/kivezebibevumerezop.pdfIn PDF document text
- http://airfa.it/userfiles/file/81990441367.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/zikuvetomijarexape.pdfIn PDF document text
- http://inteko-tula.ru/f/file/nebunelowo.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161388a79f4030---widis.pdfIn PDF document text
- http://gangwonbnb.com/FileData/ckfinder/files/20210907_695887820BE14C73.pdfIn PDF document text
- https://agermag.ro/mm/file/divafemi.pdfIn PDF document text
- http://rubivina.com/Images_upload/files/46328138215.pdfIn PDF document text
- http://ocvitlucky.com/vietkiendo/upload/file/67502392503.pdfIn PDF document text
- https://tvmreza.tv/ckfinder/userfiles/files/61731555499.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1612f19b4501bf---83598642333.pdfIn PDF document text
- https://jmbarrenetxea.soinuenea.eus/files/galeria/files/nodegin.pdfIn PDF document text
- http://www.naturhalles.fr/fckeditor/userfiles/file/96341186001.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/161358181e0b69.pdfIn PDF document text
- http://agriturismolionsfarm.it/userfiles/files/54462894009.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_off0000ce88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE88 | 10936 bytes |
SHA-256: c64be91f7cc2a2e20041ad6dfd327495ef03a057864eea9097d98f194c23d4ce |
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font_01_sfnt_off0000e774.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE774 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ff86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF86 | 18856 bytes |
SHA-256: 9e0090210ebf6a252544f64db567dce4f78f814f80977564750735d153968610 |
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