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, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to numerous disposable domains, with one URL containing a search term suggesting a lure for health-related queries. The presence of embedded JavaScript, though not explicitly detailed in the provided evidence, is a common technique for exploiting PDF vulnerabilities and redirecting users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://oniceh.ru/uplcv?utm_term=pain+in+left+side+of+front+neck+artery PDF link annotation
- http://uniradioweb.info/userfiles/files/74456130169.pdfIn PDF document text
- http://fujavietnam.com/images/Download/nazolusomiredexolo.pdfIn PDF document text
- http://orem.mn/uploads/files/bebefuzivotokemamigogofo.pdfIn PDF document text
- https://jamuiboe.com/webroot/upload_media/pizeja.pdfIn PDF document text
- https://gestionarival.com/userfiles/file/sutozijuzavi.pdfIn PDF document text
- http://bebelino.ru/userfiles/file/tedoridapiboko.pdfIn PDF document text
- http://dorrstrechy.cz/UserFiles/File/jepelumiganujo.pdfIn PDF document text
- http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/39297917058.pdfIn PDF document text
- http://baracenter.be/userfiles/file/gefimuzefi.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-17/20210917122641478131.pdfIn PDF document text
- https://nepalfinepashmina.com/userfiles/file/71446495873.pdfIn PDF document text
- https://raguvosbaldai.manovonia.lt/images/files/sefekipol.pdfIn PDF document text
- http://siripanyalamphun.com/user_img/files/2819451633.pdfIn PDF document text
- http://mjengo.org/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/32546199204.pdfIn PDF document text
- https://vcvscr.cz/www/www/fckphotos/file/1397021166.pdfIn PDF document text
- http://sanfrancescovet.com/userfiles/files/89662148542.pdfIn PDF document text
- https://salvamontbihor.ro/app/webroot/files/userfiles/files/norowekav.pdfIn PDF document text
- http://timebank.ru/sites/default/files/photos/pagefile/sixixogifakotafufugif.pdfIn PDF document text
- https://psystat.net/candyticket/uploads/page_images/files/4465669951.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/8fe7d615eda73a76d010b76e5183a6a6/dujimiwulotezowujikizob.pdfIn PDF document text
- http://globalroomplus.com/bot/ckfinder/uf/files/gesizelaj.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_off0000aefb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEFB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c712.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC712 | 10676 bytes |
SHA-256: 2849c3d49a69df5ef409c56d72a56dd6fd1d924356d5767982be917533bf6801 |
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font_02_sfnt_off0000dfaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFAF | 17600 bytes |
SHA-256: b2839d138fabf46c57f34d5bdfdf557750e32a5509242868e21c6b94e5d481b5 |
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