MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external websites, indicating it functions as a link farm. Several heuristics suggest these links are hosted on compromised CMS uploads or disposable domains, pointing towards a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://synerhu.ru/uplcv?utm_term=social+media+marketing+for+dummies+pdf+free+download PDF link annotation
- http://zhatuogz.com/uploadfile/file/40216773070.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16087a15f2746f---femagukezibik.pdfIn PDF document text
- https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/97c4d866423587ac216c59c6d5e99dda/5291400748.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870bf1d90f2---64224241879.pdfIn PDF document text
- http://the-bom.kr/upfile/files/27663889234.pdfIn PDF document text
- http://vp-dmsh.ru/admin/ckfinder/userfiles/files/23227494387.pdfIn PDF document text
- http://ergo-logo-bamberg.de/userfiles/file/muvobikobolobu.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/33f1d4f96a3e93f5af46b6f777c0ce01/61634589716.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/konunuxerogapibelekap.pdfIn PDF document text
- https://hojoairport.com/images/file/79777685512.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16098a8c4ce110---1807744897.pdfIn PDF document text
- http://budka39.ru/files/jinivevunakilulub.pdfIn PDF document text
- http://aryajob.com/user_upload/file/14616889471.pdfIn PDF document text
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079e69be684e---rujadi.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1cc154a672---38844777232.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/rlnrcmkk4m6figc5agbm7h2vi1/7820886833.pdfIn PDF document text
- http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/39040262562.pdfIn PDF document text
- https://apoiotelecom.com/imagens/img_fckeditor/file/34847035927.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/pelomixakelezifovuv.pdfIn PDF document text
- http://atol-res.pl/uploads/file/balaperexowinamoviduv.pdfIn PDF document text
- https://fidelishospice.com/ckfinder/userfiles/files/difijubudedire.pdfIn PDF document text
- https://nabsangram.com/userfiles/file/90239946149.pdfIn PDF document text
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160784a72130c6---naborix.pdfIn PDF document text
- http://pensacolahigh1964.com/clients/1/1d/1d652d7f5bd5fd2f3712913460b20393/File/83603802632.pdfIn PDF document text
- http://uforoi.com/app/webroot/uploads/files/mepesarazut.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_off0001021f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1021F | 11316 bytes |
SHA-256: 1c316017dbbe53487fb2e215a76f3b108a2f06d1ce8a32596c407588b2be6c94 |
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font_01_sfnt_off00011c8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C8C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001349e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1349E | 19064 bytes |
SHA-256: 27dbe1df553e582cc4515b9aaeb7e5f40af97764e3de415634ec0bf4d0586384 |
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