MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous external URIs, many of which are structured as file downloads, suggests a phishing or malware distribution scheme. The document body is heavily obfuscated, but the overall structure and URL patterns point towards a malicious PDF designed to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 https://inwebjor.ru/uplcv?utm_term=architecture+of+the+well+tempered+environment+pdf PDF link annotation
- https://eetravel.net/file/jikazaxelapajiwif.pdfIn PDF document text
- https://techielingo.com/fck_uploads/files/dimudatutadijeso.pdfIn PDF document text
- http://maslatalaia.com/userfiles/file/rujisabadewuwanumi.pdfIn PDF document text
- https://maftplayer.net/calisma2/files/uploads/kowogetimoxexepikexis.pdfIn PDF document text
- https://asken.as/bilder/file/nifuvejaxefe.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-9-13/20210913090436606942.pdfIn PDF document text
- https://stealthwindow.tw/uploads/files/202109270555533693.pdfIn PDF document text
- http://registermycompany.in/admin/userfiles/file/63459139014.pdfIn PDF document text
- https://selispin.net/calisma2/files/uploads/nurexuruparovovevas.pdfIn PDF document text
- http://wijnhuis-vaessen.nl/site/data/ws/files/72263025773.pdfIn PDF document text
- http://miyisz.com/mingyi/images/userfiles/file/kivomatanarulava.pdfIn PDF document text
- http://auburn-companies.com/userfiles/files/ludirupubam.pdfIn PDF document text
- http://mn-print.ru/ckfinder/userfiles/files/69193959022.pdfIn PDF document text
- http://ozhelalikram.de/resimler/files/78166019524.pdfIn PDF document text
- http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/netafepis.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c0f229aaa3---jezepibasutopukibu.pdfIn PDF document text
- http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dexadaxodifuf.pdfIn PDF document text
- https://togeltop.net/contents/files/gemat.pdfIn PDF document text
- http://matrixpaint.com/ckfinder/userfiles/files/4829139962.pdfIn PDF document text
- http://tiga.co.th/ckfinder/userfiles/files/31968704325.pdfIn PDF document text
- https://defi128.phpascal.com/userfiles/files/37473810268.pdfIn PDF document text
- http://i-tos.com/userData/board/file/topedupapenipiliro.pdfIn PDF document text
- http://everestlodgelukla.com/userfiles/file/11387543373.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_off0000dd29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD29 | 10788 bytes |
SHA-256: bcbb6c7e98fbfe3641af33b2393939ae3a0bb693e3ac0e73a1400df0eb4f28d0 |
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font_01_sfnt_off0000f5dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5DC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010dee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DEE | 20908 bytes |
SHA-256: 344cee29ccf9a05975d84a4f571c32eaebfcdc15bc9abf37c67fa471998c7199 |
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