MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://queure.ru/uplcv?utm_term=parts+of+chromosome+structure PDF link annotation
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/aecaf8b4af78bfe3c76e338705a366b1/53206110864.pdfIn PDF document text
- https://directorvincentchow.com/fck_filemanager_upload/file/86726816314.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/virikegukafupumimofe.pdfIn PDF document text
- http://media-production.net/admin/ckfinder/userfiles/files/98353998861.pdfIn PDF document text
- http://geo-equipe.it/userfiles/files/jabokafomovul.pdfIn PDF document text
- http://markjfox.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/55689036765.pdfIn PDF document text
- http://lube-stc.com/ckfinder/userfiles/files/zirarorobubena.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161422e5c2f9de---10186370256.pdfIn PDF document text
- http://e-restauracion.com/app/webroot/files/uploads/files/pufuvajunoluwidoza.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/e0cd013cd6877e84050d55aee00639e8/36009281384.pdfIn PDF document text
- http://arabstina.com/ckfinder/userfiles/files/nigarari.pdfIn PDF document text
- https://millvalley.com/wysiwygfiles/file/nutif.pdfIn PDF document text
- https://beysukonaklari.com/ckfinder/userfiles/files/18423513231.pdfIn PDF document text
- http://ngocphuocjsc.com/public/default/ckeditor/files/89488207868.pdfIn PDF document text
- https://blugarden.eu/file/savowebexomogu.pdfIn PDF document text
- http://etasystem.net/userfiles/files/dogofogu.pdfIn PDF document text
- https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/witolidubalamogagenevisid.pdfIn PDF document text
- https://crc.creativechange.net/ckfinder/userfiles/files/2936575357.pdfIn PDF document text
- http://gnox.vn/upload/files/6631485991.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/91658845179.pdfIn PDF document text
- https://marbeyoyun.com/calisma2/files/uploads/26565232269.pdfIn PDF document text
- https://ooo-kenk.ru/userfiles/file/8263936438.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_off0000da37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA37 | 17916 bytes |
SHA-256: adfc7084c51eecf4c4cf38a271df640e7b9bfba33d2b1884670c03576ad088f7 |
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font_01_sfnt_off000108d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108D9 | 10460 bytes |
SHA-256: e7289e868be0357fc2288f4c9f4e8b40a6142f8552956a1fc9b67cf42f7b9123 |
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font_02_sfnt_off000120b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120B1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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