MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to distribute malware. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://ketchas.ru/uplcv?utm_term=the+old+man+and+the+sea+ernest+hemingway+ebook+free+download PDF link annotation
- http://winecellarkeeper.com/ckfinder/userfiles/files/55874034848.pdfIn PDF document text
- http://geodavidepini.it/userfiles/files/76900396902.pdfIn PDF document text
- https://073741256.com/uploads/files/202109030418283936.pdfIn PDF document text
- http://bapassamarinda.id/assets/ckfinder/core/connector/php/uploads/files/54252203869.pdfIn PDF document text
- https://goldengatetaichiqigong.com/userfiles/file/66910815089.pdfIn PDF document text
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/2c2631ab06695e57f707c67cbc2afc69/58270360687.pdfIn PDF document text
- http://moiarchitekci.pl/pliki/file/2821943063.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/3f82d9a2e15ebd492d6dce5b1cc62e72/55299990326.pdfIn PDF document text
- http://starfishdowney.com/uploads/files/gituzafuberuxaguwazetodi.pdfIn PDF document text
- http://maility.pl/_ADRESuserfiles/file/suxusuxokadagabofufupeked.pdfIn PDF document text
- http://paradisoseminatrici.it/userfiles/files/meruwuro.pdfIn PDF document text
- http://www.lasallelille.com/admin/ckfinder/userfiles/files/5983536695.pdfIn PDF document text
- http://yibetter.com/data/files/68744791930.pdfIn PDF document text
- http://posicert.com/upload_fck/file/2021-9-7/20210907180101259808.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/ba86788d820607e8e172ea7a4cd225dd/zomoredepekemejojekab.pdfIn PDF document text
- https://cingenito.ca/upload/editor/file/wejawurobuxusipa.pdfIn PDF document text
- http://abwbaltimore.com/uploads/files/sijibisifeserok.pdfIn PDF document text
- https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/35743118843.pdfIn PDF document text
- http://pedraferro.com/files/files/19096109598.pdfIn PDF document text
- http://www.scea.edu.mn/ckfinder/userfiles/files/9439361466.pdfIn PDF document text
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613230a3c5362---15632772772.pdfIn PDF document text
- https://stormester.no/files/file/45054108969.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_off0000dc56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC56 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF468 | 17848 bytes |
SHA-256: efd97a5c8b9981aabda1746a5bced361be8c09953450dde21ce3a5c4c2947ef4 |
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font_02_sfnt_off000122a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122A5 | 11196 bytes |
SHA-256: 3d1f7f5f569d4ee72c56b24c24a8c06bb4925d97ed6ff697ea38cffc029aa5cc |
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