MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which point to disposable hosting and are structured as link farms, a common tactic for phishing or distributing further malware. The presence of external URI heuristics and the 'PDF_SEO_DISPOSABLE_LINK_FARM' firing strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://pistant.ru/uplcv?utm_term=tabla+de+densidades+de+liquidos+pdf PDF link annotation
- http://khacvietlaser.vn/public/images_news/files/4760696560.pdfIn PDF document text
- http://highlevel.pl/userfiles/file/kufos.pdfIn PDF document text
- http://doubles301.jp/files/ckeditor/files/1996899520.pdfIn PDF document text
- https://heuresromantiques.com/upload/files/37372679659.pdfIn PDF document text
- https://stallion-international.com/userfiles/file/6780498311.pdfIn PDF document text
- https://mobilaide.com/upload/editor/file/jitapumiruj.pdfIn PDF document text
- https://foursservices.com/nbloom/fckuploads/file/wuxerepasajerukogegimuvir.pdfIn PDF document text
- http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/8902493072.pdfIn PDF document text
- http://www.almansori-ye.com/almansorifiles/files/nuxoguzarizemovixugiwax.pdfIn PDF document text
- http://mim2010.ru/userfiles/file/9074980681.pdfIn PDF document text
- https://discovercefalu.com/_data/images/file/lexebozosinuvasamuxaw.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/2ebjen7ngcdtlj71v1qpqobo83/bawazovomapex.pdfIn PDF document text
- https://sokolzgierz.pl/web/uploads/files/27280829511.pdfIn PDF document text
- http://laconchigliacasevacanze.it/userfiles/files/kijugegekob.pdfIn PDF document text
- http://altinay-law.com/images/file/wevozasekidu.pdfIn PDF document text
- https://tecnibat.net/uploads/archivos/fabokuzizupafimopiji.pdfIn PDF document text
- http://kleinschadenexpert.de/userfiles/file/sudezimotefedome.pdfIn PDF document text
- https://zenmobile.in/jaipriyart/uploads/files/48048811926.pdfIn PDF document text
- http://arucax.am/user_images/file/14788159701.pdfIn PDF document text
- https://denizlihorozu.com/resimler/files/57289426054.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/11c8f7ab53b74394bb6efcd843c21ce8/vuxinelenukelubiluz.pdfIn PDF document text
- http://s292376414.onlinehome.fr/datas/imgmail/file/4486134041.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_off0000d8ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8FF | 10644 bytes |
SHA-256: 59f19537a9d2808b98c009bcc0ba14048fb57c8c6f3e81b0db7131cb8247019e |
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font_01_sfnt_off0000f0fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0FA | 19840 bytes |
SHA-256: 480b6c70877d9125a94cae6d8445c0fe1e1051042f84a7ccdc0215c7fdc5ef88 |
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font_02_sfnt_off00012370.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12370 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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