MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs that point to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://catamma.ru/uplcv?utm_term=how+do+i+get+my+apps+to+stop+crashing PDF link annotation
- http://jenan.com/ckfinder/userfiles/files/29414530659.pdfIn PDF document text
- http://handbook.hu/upload/page/file/nawimelezalogosovobezefo.pdfIn PDF document text
- http://ecohort.com/userfiles/files/7246340948.pdfIn PDF document text
- http://ministerium.pt/files/tubusadasasedan.pdfIn PDF document text
- http://519pf.com/userfiles/files/68763718215.pdfIn PDF document text
- http://ingmarcofaedi.com/userfiles/files/13823164137.pdfIn PDF document text
- http://russia-ex.com/images/blog/file/9150237531.pdfIn PDF document text
- https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/18552750573.pdfIn PDF document text
- http://kroonzuivel.nl/ckfinder/userfiles/files/85278008466.pdfIn PDF document text
- http://designbyjoseph.com/uploads/File/fugudoketegogef.pdfIn PDF document text
- http://vivaibonomo.it/userfiles/files/52626127581.pdfIn PDF document text
- http://pescepiana.eu/userfiles/files/55963562920.pdfIn PDF document text
- http://hb-hospital.com/file_upload/fck_upfile/file/jusalibiwimalopamoros.pdfIn PDF document text
- http://nurugelexport.com/ckfinder/userfiles/files/51944670536.pdfIn PDF document text
- https://rajatotogroup2.com/contents/files/8150658924.pdfIn PDF document text
- https://yenicekentkaplicasi.com/userfiles/file/21242326796.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613413e15144e---3175597135.pdfIn PDF document text
- https://aparcaderoshaddaichile.cl/uploads/images/files/58660706114.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/59153477834.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/r5en7uul1fd646pa84s94eieg7/767264940.pdfIn PDF document text
- https://successalpha.team/upload/files/megipatagakewutugajido.pdfIn PDF document text
- https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/logewegikafese.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/79d48f42c79c7195fc30d2f835f7e2d9/lepidokis.pdfIn PDF document text
- https://novinfasteners.com/userfiles/file/20618333112.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_off0000de73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE73 | 11104 bytes |
SHA-256: 8a5abb61715d9f9a32f5a60777a2a9459f6232199c04583794e670f36b566e1e |
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font_01_sfnt_off0000f802.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF802 | 18160 bytes |
SHA-256: a0c8890112d95941dc074020f1f218b27848ac6e46caf036bdec77d6def64df9 |
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font_02_sfnt_off0001279a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1279A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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