MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, with a high-severity heuristic indicating a browser extension installation lure. The document's structure and embedded URLs suggest it is designed to trick users into downloading and installing malicious software disguised as a necessary update or plugin. No scripts were extracted, but the overall pattern points to a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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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 http://braciszewska-klimek.pl/fck_files/file/potoz.pdf In PDF document text
- http://rqconsultores.com/userfiles/file/kuwimojedinupuzepotufen.pdfIn PDF document text
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/vapusikajelape.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/belurinexanagum.pdfIn PDF document text
- https://adminico.nl/userfiles/file/tanunoj.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/relavumo.pdfIn PDF document text
- http://remproekt-m.ru/admin/ckfinder/userfiles/files/jizufene.pdfIn PDF document text
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/1959f7979150be7f1ef80bd9ad71db7d/49202842373.pdfIn PDF document text
- http://apisicul.com/userfiles/files/bodepotawoluboraf.pdfIn PDF document text
- http://cansuyu.org/resimler/files/35925254937.pdfIn PDF document text
- http://getvisa.ru/images/File/17593476156.pdfIn PDF document text
- https://hinodecoder.com/userfiles/file/vubolapivuwef.pdfIn PDF document text
- http://signauction.net/userfiles/file/botuwujepupetoz.pdfIn PDF document text
- http://www.logomarcanet.com/userfiles/file/lolanananiwakebebaperopu.pdfIn PDF document text
- https://beautyyaurient.com/editor_upload/file/luwavafasojevovuzowov.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7500d2019---lowigivodewitukuxojize.pdfIn PDF document text
- http://e-baze.lv/images/site/file/lofajanekanivona.pdfIn PDF document text
- http://uleshuzatshop.hu/files/file/1163367659.pdfIn PDF document text
- http://mrhobbscoffee.com/images/uploads/file/93185998022.pdfIn PDF document text
- https://linkevicius.com/upload/galery/file/32408161355.pdfIn PDF document text
- http://innova-perila.ru/upload/files/xulevixokatebofojexifaj.pdfIn PDF document text
- http://franceplus.fr/userfiles/file/dewiritufoduraxorebaged.pdfIn PDF document text
- http://nenorm.com/files/files/xowisewisuru.pdfIn PDF document text
- http://ankurgroups.com/userfiles/file/79970937405.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=block+websites+in+chrome+mobilePDF 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_off0000d488.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD488 | 10704 bytes |
SHA-256: e815470e867260e497ec9921da914234449c0a968edd6b46d92be05313f3ffa9 |
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font_01_sfnt_off0000ecf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001050b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1050B | 17756 bytes |
SHA-256: 36bf4982e7bfe3766fb355261cb374066d8a927327fab1d53e4d2ea6c09d2035 |
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