MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting it's part of a phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a phishing lure or a secondary payload. The document body's title, 'Modelo de recibo de dinero en word', further supports the phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160897018b678a---rudetavobazifuravur.pdf In PDF document text
- http://ekolojikweb.net/upld/userfiles/file/72110646844.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c2a2e7bab---zibidewug.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/f95bf821757777d15554cc876d8a422a/30655560837.pdfIn PDF document text
- http://zae.me/datafiles/file/16814778005.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160945dac66202---67305683942.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/5edf14dd91ce303ae63cb08c6d081986/34371114052.pdfIn PDF document text
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/41d264564f204ebfb97348ca062f36cd/92346534288.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc13ba55f0---36790521435.pdfIn PDF document text
- http://ampletrekking.com/userfiles/file/divumafavuruwer.pdfIn PDF document text
- http://www.aqsclimited.com/EditorImages/file/15367636027.pdfIn PDF document text
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16077e343e7722---23127065676.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16073a20a3c8f7---85179675958.pdfIn PDF document text
- https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/o86e0874sa3sbmd6csieuu23tm/legugexoxevuxezidexox.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=modelo+de+recibo+de+dinero+en+wordPDF 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d77b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD77B | 4784 bytes |
SHA-256: 3e3fb13ebc527c397f57c87db83f8aed0b74df88d405b05b54fc20a37ea5d68e |
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font_01_sfnt_off0000e7e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7E6 | 11804 bytes |
SHA-256: b8a6d401a219e3150f3769a8d52a7f62209bf6fa5fc08f59376344a8e64fabb5 |
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