MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised WordPress sites, suggesting it functions as a link farm designed to redirect users to malicious or phishing content. The presence of these links and the overall structure align with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://huntic.ru/uplcv?utm_term=cellule+animale+et+v%C3%A9g%C3%A9tale+diff%C3%A9rence+pdf PDF link annotation
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e33a02afcb2---jiwujina.pdfIn PDF document text
- https://visionbrindes.com/admin/fckeditor/userfiles/file/33098936916.pdfIn PDF document text
- http://rfamilylucas.com/clients/73238/File/8663330479.pdfIn PDF document text
- https://pbchistoryonline.org/uploads/file/79006612963.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f6d95d466---28288200164.pdfIn PDF document text
- https://estudiowebcolombia.com/ckfinder/userfiles/files/wojexurijilasudumivut.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/e972d3679198b224e5b0dfe558fffb54/33331920489.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160afce6b7f465---zitezubisugod.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/76572974295.pdfIn PDF document text
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/e7a152119fe17ce431243ba3026b6c61/35241510823.pdfIn PDF document text
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/037a18163355fe6dfe01f9c83a50dbe3/62468714365.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16094a80eeed2c---45473057247.pdfIn PDF document text
- http://robbes.nl/media/files/89901413168.pdfIn PDF document text
- http://goodtraefarm.com/ckupload/files/53475184502.pdfIn PDF document text
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/hbdvjfakblu5imq9hvbpap3jq1/31430533978.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa5030e1286---fofosazo.pdfIn PDF document text
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/a42251b522469cb906bcaa837ed15e4b/33615677754.pdfIn PDF document text
- http://jamesirvinewedding.com/clients/f/f9/f947a18657f5d77a8fcd192ffd4ccf25/File/lofaj.pdfIn PDF document text
- https://optimuselearningschool.com/learning/site/images/uploadfiles/90028642975.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc3fe1bd8f---3740042098.pdfIn PDF document text
- http://kqcme.yiaiwang.com.cn/upload/files/45834375299.pdfIn PDF document text
- https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1fb48457b---nejelajazixezanekunitajek.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c86bf7a463b---38800855812.pdfIn PDF document text
- https://leise.ru/admin/ckfinder/userfiles/files/sutuwotuburetomo.pdfIn PDF document text
- http://pro-elec.ru/ckfinder/userfiles/files/maliwakim.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_off0000ee10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE10 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010622.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10622 | 17520 bytes |
SHA-256: fdaf73098bf83e86675e1d4c4097fecf33719ad0ea92ea3c98810a207a376897 |
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font_02_sfnt_off00013207.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13207 | 11024 bytes |
SHA-256: ae8ea80bb41cf8c2be35fbfe7c09433b64a01c8da3d5418af5b12e7007cea5a3 |
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