MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to a variety of websites, many of which appear to be part of a link farm designed to obscure the ultimate destination. Several URLs lead to compromised CMS uploads or disposable hosting, indicating a likely phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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://krisoc.ru/uplcv?utm_term=porn+game+download+free+for+android PDF link annotation
- http://frigotechreina.com/userfiles/files/xevubuketanifiwuw.pdfIn PDF document text
- http://autoscuolemontagna.it/userfiles/files/vavazikap.pdfIn PDF document text
- https://rajatotogroup3.com/contents/files/vowejelijuruzurepas.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615114c371b49---37994415856.pdfIn PDF document text
- https://celebicatering.com/upload/ckfinder/files/74765179045.pdfIn PDF document text
- https://lose-weight.tw/upload/files/39614165644.pdfIn PDF document text
- https://turismopontevedra.com/ckfinder/userfiles/files/70387410493.pdfIn PDF document text
- http://pwharrison.com/userfiles/file/gigujup.pdfIn PDF document text
- http://spy-military-labs.com/userfiles/file/mupunawegamakanizonivip.pdfIn PDF document text
- http://thegioituigiay.net/uploads/files/xofupelamivorebipepi.pdfIn PDF document text
- https://denizlihorozu.com/resimler/files/4718152269.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/36607385492.pdfIn PDF document text
- http://rracc.com/file_media/file_image/file/fugusotekamawu.pdfIn PDF document text
- http://akademia-jedenastka.pl/zdjecia/fck/file/78879983556.pdfIn PDF document text
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/a10cdc78e5889371f0122cb89266d507/54673112245.pdfIn PDF document text
- http://packagingandfoodmachinary.com/userfiles/file/49365906147.pdfIn PDF document text
- http://www.aamuhsv-madisonalumni.org/files/files/keferaxuse.pdfIn PDF document text
- http://firstcuwire.com/file_media/file_image/file/xodomadow.pdfIn PDF document text
- http://aerotechgroup.ru/img/outer/files/kegixijezugof.pdfIn PDF document text
- http://ocean-ex.com/images/blog/file/porusati.pdfIn PDF document text
- http://emeraldcovepartners.com/_data/images/file/26955640379.pdfIn PDF document text
- http://solarexperten.ch/fckeditor/editor/images/file/20224254687.pdfIn PDF document text
- https://shoppingplanet.cityplanet.ro/ckfinder/userfiles/files/bobizufidewo.pdfIn PDF document text
- https://fotobolfestmeny.hu/mvc/userfiles/file/64818153898.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_off0000aebf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEBF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c6d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6D1 | 15648 bytes |
SHA-256: d7d0845cd35d615c362668114fa4995fcf7b3e3d4b0726a9133754ad205b2f47 |
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font_02_sfnt_off0000ee27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE27 | 10516 bytes |
SHA-256: e0a0d6992394a54ad2a98eb3acb3ee78e6a32c38825c78279bb5fcdd41bdc375 |
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