MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. It contains numerous embedded URLs pointing to external sites, many of which are structured as link farms or disposable hosting, suggesting a phishing or malware distribution campaign. The PDF's structure and the presence of external URIs indicate an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://krisoc.ru/uplcv?utm_term=wear+os+vs+watch+os PDF link annotation
- http://www.cafeinca.com/img/public/contenido/file/61527998272.pdfIn PDF document text
- http://vongtaygiay.net/media/ftp/file/kitofapaxagemizona.pdfIn PDF document text
- https://paidionresearch.com/userfiles/files/25857147576.pdfIn PDF document text
- http://isdoor.ru/uploads/files/fidoliwijirisevitarujus.pdfIn PDF document text
- https://thibiditrading.com/public/userupload/files/bepifobikuzapisep.pdfIn PDF document text
- http://thepokeluau.com/uploads/files/jodobibujetimiwu.pdfIn PDF document text
- https://trinityautorepairs.com/uploads/files/ziwexuvakilegabafel.pdfIn PDF document text
- http://4els.ru/uploads/images/files/69460064428.pdfIn PDF document text
- http://tikatalog.sk/_files/file/10408803853.pdfIn PDF document text
- http://nguyenthaotech.com/upload/files/dufamisazebebopijadojalib.pdfIn PDF document text
- http://boletos.luzservicos.com/ckfinder/userfiles/files/vopelidewubesuza.pdfIn PDF document text
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/90909761951.pdfIn PDF document text
- https://raljob.com/userfiles/file/45871525105.pdfIn PDF document text
- https://kaplaitalia.it/userfiles/files/bonodozibibe.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613b71ab2dca9---rizisobo.pdfIn PDF document text
- http://mexvp.com/ckfinder/userfiles/files/bodabizilazupag.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613576fc46980---20873028156.pdfIn PDF document text
- http://cw-cut.com/uploads/file/82670649687.pdfIn PDF document text
- http://aa-nusd.jp/10753925132.pdfIn PDF document text
- http://gearcon-eng.com/file_media/file_image/file/nosetesavivinanolip.pdfIn PDF document text
- https://kar360.com/resimler/files/xododifiju.pdfIn PDF document text
- http://avandcie-energy.fr/ckfinder/userfiles/files/zizuxa.pdfIn PDF document text
- http://naturenhuman.com/app/webroot/userfiles/file/bubabadaruxaguropen.pdfIn PDF document text
- http://chipgene.com/image/files/20210910_181734.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_off0000b073.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB073 | 16616 bytes |
SHA-256: 7d0cdcd5507207b0fa828f8a4b43a8379b230e045d8824a14533552cf874047a |
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font_01_sfnt_off0000db5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB5C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f373.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF373 | 10228 bytes |
SHA-256: a9a8a74f1664c7c30963604674d774fe06bc7d54d8858f5cb5e64a16a5da888a |
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