MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to obscure malicious links. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing or malware-hosting sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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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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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://nomylo.ru/uplcv?utm_term=cool+math+games+60+second+santa+run PDF link annotation
- http://a-xian-coat.com/uploads/files/202109112311254857.pdfIn PDF document text
- https://fotojursa.cz/userfiles/file/75690119298.pdfIn PDF document text
- http://vektor-bezpeki.com/userfiles/files/99949550686.pdfIn PDF document text
- http://com123.vn/uploads/file/93390990046.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/jobesalogekizo.pdfIn PDF document text
- https://sergeca.com.ve/ckfinder/userfiles/files/wapuzidibefajejedeziguf.pdfIn PDF document text
- http://nexxosrealty.com/userfiles/files/zexugopupadawosofuw.pdfIn PDF document text
- http://uni-farm.pl/ckfinder/userfiles/files/86040374904.pdfIn PDF document text
- https://cauthinh.com/luutru/files/fupabufemilovurijetixuwa.pdfIn PDF document text
- http://nepalbestcargo.com/userfiles/file/vebepajiwegamosezag.pdfIn PDF document text
- http://sahrugs.com/userfiles/file/33089922143.pdfIn PDF document text
- https://samsungklimalar.com/upload/ckfinder/files/wiselano.pdfIn PDF document text
- https://jackinthegym.com/uploads/files/202109060220263222.pdfIn PDF document text
- http://ladispensadicampagna.it/uploads/assets/file/86141687147.pdfIn PDF document text
- http://studiomuraca.eu/userfiles/files/xalejojir.pdfIn PDF document text
- https://sibois.eu/userfiles/file/wanoteroruremejifepuxunev.pdfIn PDF document text
- http://uspeh-kursk.ru/ckfinder/userfiles/files/sopuju.pdfIn PDF document text
- http://guanzhuli.com/userfiles/file/zujug.pdfIn PDF document text
- http://geriatriccarenewjersey.com/userfiles/files/mopazewiv.pdfIn PDF document text
- https://angem.fr/userfiles/file/xugivebojonaperarovi.pdfIn PDF document text
- http://polaryachts.com/res/wysiwyg/file/73193813866.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/jgoseoas1aa8k0lp4apbmead00/jazonewop.pdfIn PDF document text
- http://formpart.com/upload/ckfinder/files/38499705425.pdfIn PDF document text
- https://llibreriaha.com/img/events/file/mimedukesufupuxufawired.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_off0000be47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE47 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d65e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD65E | 11144 bytes |
SHA-256: b11495d4eeabb115de10d935fe012976d5df6b4a2c4621dace190e8edc9e2d83 |
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font_02_sfnt_off0000f018.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF018 | 15732 bytes |
SHA-256: 0f3b39a03f0d3270d6cefe365b68e38d1aa5b5ee0e12aaf282024cfff035071d |
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