MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high probability of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable domains, suggesting a phishing or malware distribution campaign. The presence of 'utm_term' parameters in some URLs further supports the idea of tracking user interactions for malicious purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://laborke.ru/uplcv?utm_term=interpersonal+communication+and+human+relationships+pdf
- https://al-wesam.com/userfiles/files/tolitafokijus.pdf
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb4f64c472---3779164540.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bfba320dd9d---tilomebadaliwilusukifir.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9598900d5f---50055468736.pdf
- http://dangkykinhdoanhkiengiang.com/upload/ck/files/21454239377.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/f19e27010726efd000fdcb1107f2332f/89592400250.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7c46467bcf---matapevujegapa.pdf
- http://ylgems.com/file_media/file_image/file/99845916505.pdf
- http://businessvaluationapp.com//fck_files/file/ziwubafewinilogofow.pdf
- http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076a1633c020---91243615989.pdf
- http://sam-global.info/files/file/wunogi.pdf
- http://argol-editions.fr/userfiles/file/xixaxiwexogugulutuvixo.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c161dbba22e---jewiwufeb.pdf
- http://go-pxl.com/uploads/files/90325627125.pdf
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/5tluftpumd5fn3htiubf7dan0o/wevafozotobenizizapapize.pdf
- http://sage-chem.com/image/files/20210618_065152.pdf
- http://langeline.com/ckeditor/upload/files/viwanerubutu.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce0b9291c2---80925552573.pdf
- https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/u97bvjeukv10q9ivql25ajoc24/jadozagofegot.pdf
- https://infrastone.com/userfiles/files/7447885120.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1d323bc6d---toxukapekuzutexiz.pdf
- http://simonide.org/userfiles/file/89043050285.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_off000105b5.bin8445b086fdf66675032c82bc57607d908e2ace1af9e04d0f359c74403c435ae9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B5 | 10936 bytes |
font_01_sfnt_off00011ed6.bin148896ab06d034db35d9424623b54f18200006751665f9000e16ea28bfa45cfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ED6 | 16872 bytes |
font_02_sfnt_off00014ae0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AE0 | 16792 bytes |
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