MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and ML classifiers indicated a high probability of maliciousness. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://oniceh.ru/uplcv?utm_term=walkie+talkie+talk+now+push+to+talk PDF link annotation
- https://drproperty.in/userfiles/file/63976751076.pdfIn PDF document text
- https://swapnauraan.com/ckfinder/userfiles/files/tekopozoguserogav.pdfIn PDF document text
- http://chanhbon.vn/media/ftp/file/18471442437.pdfIn PDF document text
- https://mehfermobilsaglik.com/userfiles/file/8775572077.pdfIn PDF document text
- https://0900107678.com/upload/file/vanone.pdfIn PDF document text
- http://gospel-pour-100-voix.com/fichiers/newsletter/file/7969587886.pdfIn PDF document text
- http://fatfailogistics.com/fckeditor/files/file/sowip.pdfIn PDF document text
- http://grossbuch.com/upload/file/gamixinefuniti.pdfIn PDF document text
- http://gtlfuelmarine.com/userfiles/file/18779497453.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/1544201bf9292e7865dae40153e72263/wejikajotazo.pdfIn PDF document text
- http://gyuco.com/uploadfile/files/20210921_052709.pdfIn PDF document text
- http://acupunctuuryao.nl/ckfinder/userfiles/files/nuwipiwozewolirakilugitoj.pdfIn PDF document text
- https://ichapps.com/ichapps/ckeditor-ckfinder-integration/uploads/files/gemuwizu.pdfIn PDF document text
- http://skkouty.cz/ckfinder/userfiles/files/63222782949.pdfIn PDF document text
- https://myclubowners.com/userfiles/files/61322734274.pdfIn PDF document text
- http://telektrans.hu/editor_up/25875288238.pdfIn PDF document text
- http://conblocmanado.com/pics/file/41893642451.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16130d003719c8---38121349810.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab8e2790b5---24066386708.pdfIn PDF document text
- https://estatecambodia.com/htdocs/cljr/data/files/vedivekekazusexakir.pdfIn PDF document text
- http://cerritos.songhakbbq.com/uploads/files/vizozonunukimamenib.pdfIn PDF document text
- http://gianenricofabro.com/userfiles/files/narigagakugafafa.pdfIn PDF document text
- http://irk-yoga.ru/upload/files/lelosebijasilurevela.pdfIn PDF document text
- https://hanakspotrebice.cz/eshop/ckfinder/userfiles/files/gugufafisi.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_off00015587.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15587 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00016d9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D9E | 10520 bytes |
SHA-256: 0464d9fe35aa3c34b32a6f33c1a6144f9b6734bd3bbd8779b0676792a7ecc062 |
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font_02_sfnt_off0001858f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1858F | 18308 bytes |
SHA-256: 4d7fba708aeffc75e6a9a30828ae3cc0e98bcbd283bcd4d8a44b9cf628683634 |
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