MALICIOUS
106
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document employs a social engineering tactic, specifically a browser extension installation lure, to trick users into compromising their systems. The ML classifier strongly indicates maliciousness, and the presence of numerous external URLs suggests a potential download or redirection mechanism. While no scripts were directly extracted, the nature of the lure implies an attempt to execute further malicious code or redirect to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://ketchas.ru/uplcv?utm_term=switching+back+to+iphone+from+android PDF link annotation
- http://datacomsystems.cz/userfiles/file/giposi.pdfIn PDF document text
- https://daquin-ferriere.fr/userfiles/file/19107206374.pdfIn PDF document text
- http://ondamarinarest.com/upload/files/kilagaxoseg.pdfIn PDF document text
- https://advantagelic.com/singhania/downloads/file/kazusuweganagu.pdfIn PDF document text
- http://innova-perila.ru/upload/files/65272775997.pdfIn PDF document text
- http://arcstema.com/userfiles/files/zefomoxazasemekogalop.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16137a5a44acfd---faxorirogajifojukus.pdfIn PDF document text
- http://rideco.hu/upload/file/23186844011.pdfIn PDF document text
- http://synfarm.com/upload/files/58462801473.pdfIn PDF document text
- https://karatenarrewarren.com.au/ckfinder/userfiles/files/53199375309.pdfIn PDF document text
- http://zespolbahamas.pl/zdjecia/file/46586307644.pdfIn PDF document text
- http://headlinesdinerla.com/uploads/files/1921837015.pdfIn PDF document text
- http://parbatsamajjapan.com/img/files/files/gazegiparoridovifipepug.pdfIn PDF document text
- http://erulingua.hu/uploads/content_files/files/62979362904.pdfIn PDF document text
- http://vrajacreation.com/uploaded_files/userfiles/files/69051536847.pdfIn PDF document text
- http://yachtales.net/admin/userfiles/files/mozowukami.pdfIn PDF document text
- https://pakianco.ir/data/image/uploads/news/files/mepivajav.pdfIn PDF document text
- http://avtokit116.ru/!upload/files/kolodugojinegunivam.pdfIn PDF document text
- http://hibertek.com/image/files/20210910_123813.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/22861993943.pdfIn PDF document text
- http://ebus.cn/up_file/file/padosefoded.pdfIn PDF document text
- http://dianacb.cz/userfiles/file/sotelotob.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/b641003fc5bced5b8c0ca97f91b5514a/90435900416.pdfIn PDF document text
- http://clinicaveterinariacene.com/userfiles/files/79716320007.pdfIn PDF document text
- http://futimisdev.com/userfiles/file/worirife.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_off0000d8f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8F7 | 16724 bytes |
SHA-256: 44728bac8229d7827fbaa1a97898c1e73127ea8d33c8ad0f04b6ed1b9abb0c3a |
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font_01_sfnt_off000103c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103C4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011bdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BDB | 11248 bytes |
SHA-256: 66ad7dddcad63b1491f7ba2f0b6d5bb6fe36300927474f1b41f7d89e57ac94cb |
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