MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with 31 URLs, many pointing to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The file's purpose is to lure users to external sites via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://www.nvsrolko.org/ckfinder/userfiles/files/nedomewirenepiwefipupe.pdf
- https://michelbarbot.com/upload/files/53660559441.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/295ba7309404d3ad69f61370f460a952/5413591401.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077b241a4466---96206225781.pdf
- http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/6699953613.pdf
- http://gulfcoolcontracting.com/uploads/userfiles/file/file/xixefukovibugixenixavitid.pdf
- https://bulendengin.com/upload/ckfinder/files/32292748571.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd501d1cc93---56552050391.pdf
- http://debden.org/userfiles/file/difukodunawivanesokufogod.pdf
- https://publicbridge.pl/userfiles/file/75226969646.pdf
- http://cuacuonbinhduong.com/upload/files/87147281780.pdf
- https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/258139410d79c011ebefc489f2fc0814/jufutarumozojosuketati.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/2b87032c82c9155a249e8f42b2a5b832/40940591622.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094aac426c41---tunikigobenel.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/s2g2u5qbo58d4i44om1ikttc0g/10150631007.pdf
- https://cecprint.com/images/file/kasamajusaz.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/b2d67226043e7b423ba5b37a64acf79e/konujevodufugoxanalumujew.pdf
- https://cytairtool.com/test/userfiles/file/20210628_06b9c.pdf
- https://sasalidayanisma.org/uploads/file/74335595714.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608353bf6094e---69720375359.pdf
- https://nbretail.com.vn/ckfinder/userfiles/files/94435089609.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/80a905469a184880fb490b7d84a2a2f6/47239449720.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=computer+organisation+and+architecture+book+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c81a.bin4e4722df22d9063e43bd179ceb87d21e4f9d37b80d09d4ba26104030a8249027 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC81A | 18088 bytes |
font_01_sfnt_off0000f6a5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6A5 | 16792 bytes |
font_02_sfnt_off00010ebc.bin2473bcfaff577d3bc652a8a9728581761e000dc480a8e9b5652d7a0a5571fb07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EBC | 11384 bytes |
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