MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF that contains a link farm, directing users to multiple external URLs. Several of these URLs point to compromised WordPress sites or disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to lure users into downloading further malicious content or visiting phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 http://www.drivingschool-brno.cz/files/files/tosekuxati.pdf In PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16139f546533e0---xomelu.pdfIn PDF document text
- http://aibrpjoaae2.specialty-match.com/upload/files/muvomoditamoxa.pdfIn PDF document text
- https://locoffice.ru/userfiles/file/kisinagulumexowomenaxaret.pdfIn PDF document text
- http://erodiertechnik-wenzel.de/userfiles/file/kiniz.pdfIn PDF document text
- https://giaynangchieucao.com/userfiles/file/30893930702.pdfIn PDF document text
- https://mb-classic-service.de/userfiles/file/99907041290.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137288ed5ec6---85251855963.pdfIn PDF document text
- http://rnralpha.cz/res/file/71769023565.pdfIn PDF document text
- http://xn--9w3b11kh5l.com/ckupload/files/tuxipirevoxojofipilul.pdfIn PDF document text
- https://nls.vn/upload/files/10360588314.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614265cbd78dd---gasexanajebodemixekik.pdfIn PDF document text
- http://formel1vermietung.de/userfiles/file/99622728938.pdfIn PDF document text
- http://wlpp.net/images/blog/file/musenupelanasusa.pdfIn PDF document text
- http://hydrogears.com/survey/userfiles/files/jaromewaxadiduribopapuf.pdfIn PDF document text
- https://suadienlanhhanoi.net/upload/files/31601139989.pdfIn PDF document text
- https://edubox.mn/uploads/users/0/files/durobuwalerabaweta.pdfIn PDF document text
- https://888nv.ru/userfiles/file/tisoxibepifemedemotuwake.pdfIn PDF document text
- https://viettincapital.vn/upload/files/poferexajiwumirazudabe.pdfIn PDF document text
- http://craftland.de/res/wysiwyg/file/ketisivevuwobolusukut.pdfIn PDF document text
- http://villacappuccina.com/userfiles/files/mukemapupa.pdfIn PDF document text
- http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/lolenur.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=download+game+gundam+androidPDF link annotation
- 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_off0000b2d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2D6 | 15112 bytes |
SHA-256: 9a7e403851e95c60214964fa220a8c973740188f289ee1995a5d9b45d62099ca |
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font_01_sfnt_off0000d92c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD92C | 10512 bytes |
SHA-256: 2ed57a92aeae6338031a7c906341693a7db414f2f758b8c5f32a7f227e16ca8c |
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font_02_sfnt_off0000f0d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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