MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains embedded JavaScript and a large number of external URLs, many of which appear to be part of a link farm designed to obscure the final destination. The primary purpose is likely to lure users to malicious sites, potentially for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://huntic.ru/uplcv?utm_term=riverdale+season+5+episode+3+online+free PDF link annotation
- http://mtcnx.com/upload/fckimagesfile/28394471366.pdfIn PDF document text
- http://www.gdchgs.com/admin/img/files/vanukuzotadosu.pdfIn PDF document text
- http://yourhandmadeitems.com/userfiles/file/wojatexubekobaduduvab.pdfIn PDF document text
- https://baoholaodong24.baohohoanglong.com/userfiles/file/linitolufevij.pdfIn PDF document text
- https://xn--90ah6akb9e.xn--p1ai/f/file/poduwuloxitekifef.pdfIn PDF document text
- http://prime-standard.com/piceditor/file/zodumefurezulesonola.pdfIn PDF document text
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/wuruvobanamepag.pdfIn PDF document text
- https://jin-hung.com/userfiles/file/wugiza.pdfIn PDF document text
- http://polyacer-ecp.com/userfiles/files/20210922_170634.pdfIn PDF document text
- http://studiomilano.eu/userfiles/files/6410993054.pdfIn PDF document text
- http://aedelsur.com/contenido/files/dagapejenum.pdfIn PDF document text
- https://nergizleryapi.com/image/files/70606834417.pdfIn PDF document text
- http://korea-labels.com/ckfinder/userfiles/files/kivurot.pdfIn PDF document text
- http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/99689956919.pdfIn PDF document text
- https://stpatswatertown.org/ckfinder/userfiles/files/gasemovamadiwanuxaronazi.pdfIn PDF document text
- http://vietdubai.com/userfiles/file/jajogenukavirosikeruke.pdfIn PDF document text
- http://namhungholdings.com/uploads/ckfinder/files/55089230915.pdfIn PDF document text
- http://gk-eventus.ru/admin/ckfinder/userfiles/files/jezowudinibidi.pdfIn PDF document text
- https://vietnamairlinescorp.org/js/ckfinder/userfiles/files/20777916802.pdfIn PDF document text
- http://immodraft.de/images/architekten_agentur_images_/file/liximax.pdfIn PDF document text
- http://robbes.nl/media/files/konuzuponaxiwironemudak.pdfIn PDF document text
- http://zdravi-kromeriz.cz/files/file/didodo.pdfIn PDF document text
- http://landonintergroup.com/ckfinder/userfiles/files/9689130986.pdfIn PDF document text
- http://strahyi.ru/images/file/kewabedu.pdfIn PDF document text
- http://expertcomptablecourreges.fr/michel_courreges/userfiles/file/tatogofirimulukudelanu.pdfIn PDF document text
- http://teen.plovdivweek.com/js/ckfinder/userfiles/files/26247583050.pdfIn PDF document text
- http://huanghels.com/filespath/files/20210917081217.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_off0000c2f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2F6 | 18988 bytes |
SHA-256: 0228367ade8747a677b0867b4017adaaaeac8a8268d2c8318f7f6f39200d4655 |
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font_01_sfnt_off0000f450.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF450 | 10808 bytes |
SHA-256: 7ac5117568a93d896195efafc555afa461e6e14fa4129ca80e9d9c25273fcc2b |
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font_02_sfnt_off00010d5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D5A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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