MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a malicious PDF detected by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to numerous websites, many of which are hosted on compromised CMS platforms, suggesting a phishing or scam campaign. The PDF's structure and embedded links are designed to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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://archism.ru/uplcv?utm_term=system+design+in+ooad PDF link annotation
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/itoouqkarg0is8bpahea5v5o6u/zudabekiwokav.pdfIn PDF document text
- https://eseninternational.com/uploads/files/98195443258.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/36dddeccd75c6e06e71f949f02218f5b/41302739727.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/bd437fd81d4fd8c092ceb9c6298be256/75524464167.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/46025469997.pdfIn PDF document text
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/e6mrsuuerdkcgejl0tmg6lj5ed/38873311444.pdfIn PDF document text
- http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160bc23a86b855---nuvef.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/ade66150ded81f003ee4d43a9097d195/gepunevutamadewabonat.pdfIn PDF document text
- http://nfc-lampang.com/user_img/files/tevobokejefapogekugufaba.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608c3b387acfc---vodijubigawededezekuxiwiv.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5569efd33---bobezufuzozowoguluxagik.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/id20kpmjgoo84rvsufsrdhm744/55029724271.pdfIn PDF document text
- https://shiphangnhanh.net/uploads/image/files/61932110170.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16077aadda0fe0---73297932289.pdfIn PDF document text
- http://grupopiscis.com/upload/files/23407282948.pdfIn PDF document text
- http://asbazainville.org/userfiles/file/52625531796.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098af049131a---23128725365.pdfIn PDF document text
- https://ferado.vn/userfiles/file/16821631655.pdfIn PDF document text
- https://circolodelpistone.ch/userfiles/file/37078248044.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca539f258d---93772275368.pdfIn PDF document text
- http://acecaalcoy.com/userfiles/file/69746307353.pdfIn PDF document text
- http://hobbstownis100.com/clients/6/66/66141d04a4341350d76ae3a38785cb5a/File/satomodixusivoz.pdfIn PDF document text
- https://cottonweb.net/userfiles/file/tedewosepul.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0f90cc96e---27134733171.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_off00011736.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11736 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012f4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F4D | 10636 bytes |
SHA-256: e88b24123512bd56e9aaf0f654dcc129c28fe411f68d224a7f01126bcb63b46b |
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font_02_sfnt_off0001476f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1476F | 17272 bytes |
SHA-256: 8f2d9c912efe9fa872d183a3cb1d9101a7cce23c02cf01933fa648a7919a3d52 |
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