MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is classified as malicious by ML models and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to various compromised WordPress sites, likely to host malicious content or facilitate further exploitation. The document body, though heavily obfuscated, suggests a lure related to 'violin sheet music', aiming to trick users into clicking the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://chcial.ru/uplcv?utm_term=a+million+dreams+violin+sheet+music+free+pdf PDF link annotation
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/2b730482c2ab27642f5777e8e83d10dc/danukikarelexefilamewijal.pdfIn PDF document text
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/9506d68c8d0d0f567815e32639c98a80/98894183483.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0e90fd91ce---xaremus.pdfIn PDF document text
- http://przychodnia-felinskiego.pl/uploads/editor/file/34949836233.pdfIn PDF document text
- http://panziofabian.hu/fck_kepek/51868591635.pdfIn PDF document text
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/57490ec18e1b71eb6d5e69a6a1a3fd5e/65524219348.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b29d0023cd2---2515033035.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bd0f867c337---6409347939.pdfIn PDF document text
- http://banghaija.com/userfiles/file/20473249804.pdfIn PDF document text
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f59b68fff---6595064731.pdfIn PDF document text
- https://drvishweshwari.in/userfiles/file/maxaxe.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bacd9af3e75---94818618865.pdfIn PDF document text
- http://meyergarden.com/ckfinder/userfiles/files/77078779976.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/b8f749b840b90a48abc6007559aa12a8/9655685481.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b81e22c6cb2---70034153675.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607056843c101---19394854810.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2AE | 5444 bytes |
SHA-256: f15963cba9743296045d6e57e89a55f0a371bc3db3d39d9091f9e043953161a7 |
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font_01_sfnt_off0000f50e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF50E | 11152 bytes |
SHA-256: 92b1b19f4b699449cbc1f89cc5291f2d429a490d32287ef2d0bfa5db252bcf93 |
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