MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains embedded JavaScript and numerous URLs, many of which are part of a link farm hosted on disposable or compromised domains. The primary function appears to be redirecting users to malicious websites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=what+does+pdf PDF link annotation
- http://heaig.org/editor/ckfinder/userfiles/files/95218923510.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/vaboralunesodilekatigup.pdfIn PDF document text
- http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/luvuxipu.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/9dde9d675d15903f5f7ec31f99e08e1f/25596056176.pdfIn PDF document text
- https://holocaustresearch.pl/nowy/photo/file/26545328316.pdfIn PDF document text
- http://chochosanencino.com/uploads/files/12838603441.pdfIn PDF document text
- http://carscaso.com/js/upload/files/52368827587.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161317c998b675---76734518306.pdfIn PDF document text
- http://kfbma.org/files/fck/file/90621917338.pdfIn PDF document text
- https://petpetmates.com/files/editor/file/tefifeluju.pdfIn PDF document text
- http://pacemakerpressintl.com/uploads/assets/file/4270890339.pdfIn PDF document text
- http://suaups.net/userfiles/file/84257567165.pdfIn PDF document text
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/161355e97c97c2---kaliwudewuroti.pdfIn PDF document text
- https://autoskola-scp.com/files/89966220705.pdfIn PDF document text
- http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/36907205944.pdfIn PDF document text
- https://cingenito.ca/upload/editor/file/85715795516.pdfIn PDF document text
- http://xn----8sbemnkjd7bfu.xn--p1ai/design/img/upload/file/78452400678.pdfIn PDF document text
- http://cpils.com/userfiles/file/zamorunufegar.pdfIn PDF document text
- http://hoangle.vn/uploads/userfiles/file/68480310564.pdfIn PDF document text
- https://ontech.vn/images/ckeditor/files/digonipitonufuterukiwose.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_off0000e24e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE24E | 18756 bytes |
SHA-256: 51714b2d8873ad6a87fc54aca7940fbd86cec6887f1eaf463b0ae3311abf8e8e |
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font_01_sfnt_off000112ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112BA | 10248 bytes |
SHA-256: c6e97709988a00fec5f8e4935061fe4d869e64686c8a5a24c10ceef2ba2ab836 |
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font_02_sfnt_off000129ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129EF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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