MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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://queure.ru/uplcv?utm_term=dua+for+parents+that+passed+away PDF link annotation
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/313b005d5f4afa6b91b4609bf8c1ad23/52247130358.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614103a262d3b---49689040751.pdfIn PDF document text
- http://22vek-omsk.ru/fck_editor_files/files/23204406875.pdfIn PDF document text
- https://cosmopolitanhotelbg.lastrada.bg/uploads/wysiwyg/files/47536925946.pdfIn PDF document text
- https://olterus.org/contents/files/sogegojazojiv.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/sadumibikojeju.pdfIn PDF document text
- https://carparts-fixture.com/file/file/bagag.pdfIn PDF document text
- http://bobiniauto.com/userfiles/file/kudupepexijiki.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/9a883d5ea95f1d8bf31e8923746a2296/79836213410.pdfIn PDF document text
- https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/mozeninat.pdfIn PDF document text
- https://numen-wow.com/userfiles/cloud/files/nidoxugubipemipukow.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132221892e53---23457284609.pdfIn PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/1665a9fe3635fc862542907612fa5c98/8619965395.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/vonuzun.pdfIn PDF document text
- http://salwex.hu/file/valurojiginorewaboj.pdfIn PDF document text
- https://rintrans.com/files/tevizoserevojumokobe.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc1339b0bb---sigimekanedaluxava.pdfIn PDF document text
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/161342698409ba---83517844916.pdfIn PDF document text
- http://abwmercury.com/uploads/files/50576803821.pdfIn PDF document text
- https://mysilo.com/upload/ckfinder/files/70319210574.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_off0000f75a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF75A | 10756 bytes |
SHA-256: 689c0188d3dfcc97f0ce40649c5b9cb7d07c841736bb7b444edaa0992730795c |
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font_01_sfnt_off00011021.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11021 | 17532 bytes |
SHA-256: ac7792849219f30af06c8e6f0b2fbe4df81779c4dc4cfa46cfb7d5c8f3221b99 |
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font_02_sfnt_off00013d2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D2E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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