MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the PDF's primary function is to act as a lure or redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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=walking+dead+premiere+season+11 PDF link annotation
- http://greenld.com/userfiles/65875574722.pdfIn PDF document text
- http://modero.vn/upload/files/67122584005.pdfIn PDF document text
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/d78e6d99369f4c6d015bd944c480b018/65062124326.pdfIn PDF document text
- https://mkart.it/uploads/file/jesugisovuxigif.pdfIn PDF document text
- https://icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/dezoxujesenivewudozizitu.pdfIn PDF document text
- https://agrocare.ro/ckfinder/userfiles/files/konilalefime.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b17b9348d5---88617992845.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad471b613a---63998099864.pdfIn PDF document text
- http://konstruktor33.ru/app/webroot/files/files/muvewedurepepusogesej.pdfIn PDF document text
- http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/59167642524.pdfIn PDF document text
- http://gerocuki.hu/user/file/timofijiwajep.pdfIn PDF document text
- https://tavio.ru/files/file/dopojaxuwel.pdfIn PDF document text
- http://skene.es/userfiles/file/32768598067.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/849dab9d3841e9e9cb8faafb863f742a/32493625698.pdfIn PDF document text
- https://ww150007.linebot.net/upfile/files/20210903113737.pdfIn PDF document text
- http://jun-travel.com/userfiles/file/wojoxujovomugegika.pdfIn PDF document text
- https://goez3.com/10005001208290177/ckfinder/userfiles/files/25335478780.pdfIn PDF document text
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4afe6f8d7---ganufivijajiso.pdfIn PDF document text
- http://gearonlaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/porikexuw.pdfIn PDF document text
- https://alves.bg/ckfinder/userfiles/files/rewalenofibubaso.pdfIn PDF document text
- https://tybistanbul.org/resimler/files/wifuboga.pdfIn PDF document text
- https://menokatea.com/ckfinder/userfiles/files/57449447503.pdfIn PDF document text
- https://mgs-on-track.com/uploads/misc/files/noboweko.pdfIn PDF document text
- http://nkmate.com/FileData/ckfinder/files/20210901_97C264244E4FFBFE.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_off0000b62d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB62D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ce3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE3F | 18688 bytes |
SHA-256: f1f89bdeae2d94df292639beef0394e569fa0bb3e4092fb792bb9b10653ac9d2 |
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font_02_sfnt_off0000fdb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB5 | 10772 bytes |
SHA-256: 48fae48f63e328e2f5b0e07fe15700c6d745d71797f61a7cee96bb7df33ae3ff |
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