MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple links pointing to compromised WordPress sites, which in turn host other PDF files. This pattern suggests a link farm designed to obscure the ultimate destination, likely a phishing page or malware download. The ClamAV detection and ML classifier strongly indicate malicious intent, and the embedded URLs are consistent with a phishing or credential harvesting campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/3d19970bdeb32e3e6ac96f5ead493117/39756281946.pdf In PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/477c64957a2c5b10b89ef98952be16a5/pimoxedit.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/8bec98e9722dadd6ba0c5217fb510118/sopupavimumojotovilet.pdfIn PDF document text
- http://anhuizhkj.com/upload_fck/file/2021-5-3/20210503075432229008.pdfIn PDF document text
- https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/44d04c6609d3e314e6fc4f4838da531a/siposikaduba.pdfIn PDF document text
- http://guides2alpes.fr/uploads/file/gofafokopexit.pdfIn PDF document text
- http://kaupa.cz/userfiles/file/68792040419.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/4bf504822c5955227d49221fd85910e0/pobovifadutulusepukov.pdfIn PDF document text
- http://fine-cottage.ru/userfiles/file/mesolimusasiriruzezopimu.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16098a5e72ffbe---bagosaralufebafipo.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16099ee25345a6---85546885369.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/4f9ffd8a722a5164860b3326b43490ec/46519353646.pdfIn PDF document text
- https://ancoraeducacion.com/images/tuziregizibidesexobiz.pdfIn PDF document text
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/af2949f27d87f9e74b542df66109e13e/vasalop.pdfIn PDF document text
- https://amd-export.com/site/upload/file/86130360017.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0dd877153---vofojumurexuxizesejixifej.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=divorcio+por+adulterio+pruebasPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d784.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD784 | 5040 bytes |
SHA-256: dff572878f3ce164e79d76a606eec4af5d04f59b0c2359e377f4a6a13b357a7a |
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font_01_sfnt_off0000e8b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B7 | 11464 bytes |
SHA-256: 22d56261dc18dbf8a19f6ba2f62457e749f2de1aedf6a72fe9eb6018b21bb00c |
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font_02_sfnt_off00010e1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E1C | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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