MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to other PDF files hosted on disposable domains, indicating a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the links, suggesting a tactic to evade detection by distributing malicious content across many low-reputation domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://drafthe.ru/uplcv?utm_term=baya+marathi+magazine+pdf PDF link annotation
- https://boumqueur-edition.com/upload/fckeditor/file/furisovixeri.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-9-20/20210920010705629252.pdfIn PDF document text
- https://losaltos.com/wysiwygfiles/file/vojovefo.pdfIn PDF document text
- http://dotacjedlaoze.pl/userfiles/file/balidapudolitalikawage.pdfIn PDF document text
- http://www.kymkarajok.net/tiedostot/files/vegipadinesasiz.pdfIn PDF document text
- https://internationallanguagenavigators.com/media/27753231508.pdfIn PDF document text
- http://24cvety.ru/upload/files/61880484006.pdfIn PDF document text
- http://matonaklawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/renar.pdfIn PDF document text
- http://bjqyms.com/filespath/files/20210907195113.pdfIn PDF document text
- http://oshcongregation.com/userfiles/file/57560287871.pdfIn PDF document text
- http://optimumnieruchomosci.pl/uploads/userfiles/files/vewero.pdfIn PDF document text
- https://bnovum.hu/downloads/divepevovidu.pdfIn PDF document text
- https://dascalita.ro/app/webroot/files/userfiles/files/lukukat.pdfIn PDF document text
- http://seatraveltx.com/uploads/files/xekovamijut.pdfIn PDF document text
- https://ipssecurityconsultants.com/ckfinder/userfiles/files/ximofujivejeledug.pdfIn PDF document text
- http://hyeminshop.com/DATA/files/pinuruvukofinijodusadaxi.pdfIn PDF document text
- https://avphunter.ro/ckfinder/userfiles/files/baxakaziboxubijefofevo.pdfIn PDF document text
- http://el-master.ru/userfiles/file/votakaxafomototupup.pdfIn PDF document text
- http://natpuedu.in/userfiles/file/89641794460.pdfIn PDF document text
- http://tinhotsaigon.com/uploads/files/75657253669.pdfIn PDF document text
- https://bloomland.com/sites/bloomland.com/files/zulekojumekikafavavetuse.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16148279c4ab27---54084999688.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_off0000ac7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC7C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c48e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC48E | 14660 bytes |
SHA-256: 8e386695060264e704afe901502ccbb948879bca8722e1f6e9df03af93a3777b |
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font_02_sfnt_off0000e993.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE993 | 10836 bytes |
SHA-256: b02ef007049107615013e1d90a61ccf98d4d04108c55b5e79d8bfbf7edcf50b4 |
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