MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content or phishing pages. The presence of embedded URLs and the nature of the heuristics indicate an attempt to deliver a second-stage payload or lead the user to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://chcial.ru/uplcv?utm_term=top+porn+game+for+android PDF link annotation
- https://quangcaowebsite.vn/uploads/files/54603811508.pdfIn PDF document text
- https://www.edm-medical.net/ckfinder/userfiles/files/suvirumamikimopijafurew.pdfIn PDF document text
- http://detikakdeti.ru/img/file/90262572141.pdfIn PDF document text
- http://naplesredeals.com/userfiles/files/22539745420.pdfIn PDF document text
- http://ehoron21.mn/uploads/files/62946568372.pdfIn PDF document text
- http://greenvisioninternational.gm/userfiles/file/64247789819.pdfIn PDF document text
- http://commsoft.nu/demo/ktb/wsmbilder/files/4737476049.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16144de771eddf---15676798108.pdfIn PDF document text
- http://mintaialuminum.com/d/files/29424338667.pdfIn PDF document text
- https://sarvodayasamaj.uk/upload/files/wusadaruxizonupuw.pdfIn PDF document text
- http://barbusci.it/maisUserFile/file/39306189776.pdfIn PDF document text
- https://sindonis.com/userfiles/file/43195502989.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1613da87ede2b3---rasopebenik.pdfIn PDF document text
- http://giaexploring.it/userfiles/files/85286457879.pdfIn PDF document text
- https://ssvacancy.com/ckfinder/userfiles/files/jepafepegasivovesiwosuped.pdfIn PDF document text
- http://vrieshorst.nl/images/uploads/file/pumodu.pdfIn PDF document text
- http://cokhixnktientien.com/Images_upload/files/gevaper.pdfIn PDF document text
- http://nieruchomosci-swidnica.pl/userfiles/file/ridukomazofuxewezewido.pdfIn PDF document text
- https://www.ijdsir.com/ckfinder/userfiles/files/sokaluturoj.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/kuxuwelikunikugitib.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137ada1ea7be---zinef.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/199d9b86d4e529be55a6d913e3e2c234/xavowiwagul.pdfIn PDF document text
- http://okna-dvere-online.cz/media/upload/upload/file/waxumop.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_off0000b09d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB09D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c8b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8B4 | 10492 bytes |
SHA-256: 23fd2026f09574d7ead4f6d93b9e050d8e68e87551e7eb6c2024f3a34ce6b5be |
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font_02_sfnt_off0000e047.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE047 | 14892 bytes |
SHA-256: 28ea18dee2ecfd8053c084556402d84f113a27823cc6aaa72354b48e8492be7c |
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