MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to PDF files on various domains, suggesting a link farm or redirection mechanism. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a strategy to obscure the final destination. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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 http://gazetavk.ru/img/file/tipazi.pdf In PDF document text
- https://shriayurvednagpur.org/public/ckfinder/userfiles/files/5718544477.pdfIn PDF document text
- http://kahsport.cz/userfiles/file/35349046321.pdfIn PDF document text
- http://tongchangkj.com/uploadfile/file///2021090807112839.pdfIn PDF document text
- http://aroma-es.red/yamituki-n/uploads/files/71441624725.pdfIn PDF document text
- http://cesurmakina.com/userfiles/file/64212269982.pdfIn PDF document text
- http://studioingegneriavaragnolo.com/userfiles/files/82820132356.pdfIn PDF document text
- https://nullemont.fr/nullemont/ckfinder/userfiles/files/tugureneb.pdfIn PDF document text
- http://baovekhucongnghiep.com/upload/files/66932888007.pdfIn PDF document text
- https://jyapa.com/jhuoyue/uploadfiles/vanitezewidalulogofe.pdfIn PDF document text
- http://kondicionery-fryazino.ru/upload_picture/file/62524722772.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133b39745aa9---84767035724.pdfIn PDF document text
- http://cuacuonbinhduong.com/upload/files/71635528144.pdfIn PDF document text
- http://hsound.ro/images/custom/file/71354371254.pdfIn PDF document text
- http://hyswimpool.com/userfiles/pufewuvoveratikawuzadevo.pdfIn PDF document text
- http://www.grifin.sk/files/2847232697.pdfIn PDF document text
- http://etre-belle.su/images/file/xukuxiv.pdfIn PDF document text
- http://itps-group.com/uploadfiles/file/zixabimapil.pdfIn PDF document text
- http://www.sictombbi.fr/ckfinder/userfiles/files/71503101991.pdfIn PDF document text
- http://wlpp.net/images/blog/file/mejajetupijidiwo.pdfIn PDF document text
- http://ebiocell.com/uploadfile/file///2021091416161793.pdfIn PDF document text
- http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/6bde95ff791b24e16f56d2ed30d94eba/posefuxiketisotemobevala.pdfIn PDF document text
- https://producedepot.us/userfiles/files/4541544689.pdfIn PDF document text
- http://jar-ted.pl/file/dufiwetafebimowewek.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=blade+%26+soul+revolution+apkPDF link annotation
- 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_off0000e52f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE52F | 9608 bytes |
SHA-256: 9c653d286716f8184f840d731c1e1a007ca90e393b4b1b7815a1531352361d1d |
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font_01_sfnt_off0000f9ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9FF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011211.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11211 | 18660 bytes |
SHA-256: d28d650c221f05c4fd0f3a2e1d682696f16fe350525df0aee300d2b7f42b6fc1 |
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