MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, with several heuristics indicating it functions as a link farm. Notably, one URL points to a compromised WordPress upload, suggesting a potential distribution point for malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 http://3e-machinery.ru/app/webroot/filesfiles/nawibisevafur.pdf In PDF document text
- http://viettelhaiphong.me/data/dulieu/files/78860946629.pdfIn PDF document text
- http://studiobaldizzone.com/userfiles/files/zibivuduj.pdfIn PDF document text
- http://sage-chem.com/image/files/20210906_084612.pdfIn PDF document text
- https://texigo.tw/upfile/files/2021/09/27/vijimikarera.pdfIn PDF document text
- http://daiwavn.com/uploads/image/files/zatozaxifimogis.pdfIn PDF document text
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152cadfba1d0---kosulujuxejofol.pdfIn PDF document text
- http://studiosiciliani.eu/userfiles/files/95705309389.pdfIn PDF document text
- http://pomelieagency.com/userfiles/files/13627945212.pdfIn PDF document text
- http://solmoda.it/userfiles/files/48772496228.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/wenen.pdfIn PDF document text
- https://lamaisonducoeur.ca/upload/editor/file/34040774367.pdfIn PDF document text
- https://www.elshandmadedesign.nl/ckfinder/userfiles/files/juluw.pdfIn PDF document text
- http://com123.vn/uploads/file/koliba.pdfIn PDF document text
- http://geteffective.biz/uploadfiles/file/58817415032.pdfIn PDF document text
- https://rm-parketi.si/uploads/44722024160.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613405ecde964---67899312407.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/d1b5e2a648ff555dca4be9af8f426c69/vezunudarilefetajuluja.pdfIn PDF document text
- http://skkouty.cz/ckfinder/userfiles/files/vamofopepul.pdfIn PDF document text
- https://petala.gr/userfiles/file/31164491676.pdfIn PDF document text
- http://slkuang.com/v15/Upload/file/202192070574687.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408e3cdef78---73972219305.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=download+subway+princess+runner+mod+apk+android+1PDF link annotation
- 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_off0000ba3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA3E | 11160 bytes |
SHA-256: 7379192d03290cc7b5e6278b0011c91d9c39c84ed7e11011fc208b674237c4dd |
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font_01_sfnt_off0000d42b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD42B | 20084 bytes |
SHA-256: 9c9a3da911d81461199067172b6ec24cc7fc3688e1a5c21bc41e3e1da5f913b0 |
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font_02_sfnt_off000108a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108A5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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