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. It contains a large number of embedded URLs pointing to various domains, many of which appear to be disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic of using numerous links on potentially compromised or disposable sites, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the structure and URL distribution strongly suggest a malicious intent to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://catamma.ru/uplcv?utm_term=find+the+first+five+terms+of+the+sequence+of+partial+sums+calculator PDF link annotation
- http://cga82.com/admin/File/migijemadivudadoneninuve.pdfIn PDF document text
- http://duepassidalcentro.it/userfiles/files/kovoforameluwakixexote.pdfIn PDF document text
- http://sunway.me/uploads/file/211646472843.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/7a62f1c1d7b421f7d8931c37cc31aeee/gowujulupudaraloxaruw.pdfIn PDF document text
- http://hoteldanang.com/uploads/images/files/70909093128.pdfIn PDF document text
- https://fiscalonline.eu/app/webroot/files/userfiles/files/xazolibupumazuduvavobi.pdfIn PDF document text
- http://vttbyt-bvmnpbqn.com/ckfinder/userfiles/files/muwoguzutewo.pdfIn PDF document text
- https://www.jakketoes.be/ckfinder/userfiles/files/12324012859.pdfIn PDF document text
- http://ohdiabo.net/images/ckeditor/files/47481473955.pdfIn PDF document text
- https://linardi.ru/files/file/42823277273.pdfIn PDF document text
- http://malabarisproducoes.com/arquivos/files/novuf.pdfIn PDF document text
- https://cuatudongsaigon.net/uploads/files/45246849039.pdfIn PDF document text
- https://canoe.ro/Extras/ckfinder/userfiles/files/89591911339.pdfIn PDF document text
- http://miraesusan.com/ckupload/files/51781367261.pdfIn PDF document text
- https://pima-alarms.rs/slicice/file/gepekamaxoledupodem.pdfIn PDF document text
- http://yearbookplus.com/uploads/ckfinder/files/zipomusiwaligu.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac742862b0---92825080300.pdfIn PDF document text
- http://owop.challengersports.com/ckfinder/userfiles/files/98897449770.pdfIn PDF document text
- https://shastriratanchatterjee.com/ckfinder/userfiles/files/nuratujofupaw.pdfIn PDF document text
- http://fc-junajted.com/upload/datoteke/81201233390.pdfIn PDF document text
- http://gs-metals.com/filespath/files/20210912164836.pdfIn PDF document text
- http://www.huescalamagiaenfotos.com/userfiles/files/pujasaforixogetomote.pdfIn PDF document text
- https://altsovmun.ru/userfiles/file/35965870699.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_off0000df78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF78 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f78f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF78F | 11172 bytes |
SHA-256: 03187eec7174432e78bb05b430212cd02dcb2046e008ca5c15c35ebd85e72579 |
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font_02_sfnt_off0001113f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1113F | 18664 bytes |
SHA-256: b4608f91da05badf102636612a4f11173f3ceef9f5f6e05d9289234469942367 |
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