MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains a large number of embedded URLs pointing to various domains, suggesting a link farm designed to distribute malicious content or phish users. The presence of external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 5
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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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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=yum+install+android+sdk PDF link annotation
- https://renhedc.com/uploads/files/202109011027059007.pdfIn PDF document text
- http://bhartiyambeohari.in/userfiles/file/venivubatazenixekiruv.pdfIn PDF document text
- http://vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/fuwafel.pdfIn PDF document text
- http://security-m.jp/tool/images/file/pexetal.pdfIn PDF document text
- http://eqletstalk.com/uploads/files/202109102253273434.pdfIn PDF document text
- http://inhome360.ru/admin/ckfinder/userfiles/files/35697745189.pdfIn PDF document text
- https://ski-valloire.com/ckfinder/userfiles/files/tagozigaso.pdfIn PDF document text
- http://aranysolyomfeszke.hu/editor_up/tixisudizufine.pdfIn PDF document text
- http://ergo-logo-bamberg.de/userfiles/file/83383457324.pdfIn PDF document text
- http://wronba.com/uploads/wysiwyg/file/48006311284.pdfIn PDF document text
- http://hometextiles-consultant.com/ckfinder/userfiles/files/85251408738.pdfIn PDF document text
- https://editionsitaliques.com/userfiles/file/49280286173.pdfIn PDF document text
- http://ms-beauty.com/ckfinder/userfiles/files/bemofaf.pdfIn PDF document text
- http://noithatmfc.com/media/ftp/file/netulasezeje.pdfIn PDF document text
- http://ottuk-e.org/userData/board/file/kosezirimaruf.pdfIn PDF document text
- http://drcleancenter.com/uploads/files/202109101248311482.pdfIn PDF document text
- http://elcolono.net/userfiles/files/71092336052.pdfIn PDF document text
- https://bazab.ru/ckfinder/userfiles/files/nuvabitunebasakixopofoza.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-9-5/20210905173847740764.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/5ae41a245fb1616ade9adfcf25bbdb03/22071630251.pdfIn PDF document text
- https://cakenflowersonline.com/userfiles/file/jozibamo.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/1k3v6j8jpj1vppgq8gt37pbjgq/27107374816.pdfIn PDF document text
- https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/2304357626.pdfIn PDF document text
- http://peoplefoster.com/pliki/44036897393.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_off0000e7cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7CB | 23780 bytes |
SHA-256: dce66d2fa60e72dfd821f4db750e2ea7cc6e076fb8fc22b0b86287eb7b79ab61 |
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font_01_sfnt_off000125ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125AB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013dc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DC2 | 10452 bytes |
SHA-256: 325257c68051602883fb7e96ccfc791231cdff9ebe68e077e34ee87cab07f027 |
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