MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains a large number of embedded URLs, many of which point to disposable hosting and utilize UTM parameters, indicating a link farm designed to redirect users to potentially malicious content. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically identifies this pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://catamma.ru/uplcv?utm_term=111+222+angel+numbers PDF link annotation
- https://studiecarriere.it/uploads/file/sagiwivexizozuguk.pdfIn PDF document text
- http://laiyi-art.com/userfiles/file/rivutawo.pdfIn PDF document text
- https://chingchia.com/uploads/files/202109171818445749.pdfIn PDF document text
- https://digireg.es/upload/gebawezijolepi.pdfIn PDF document text
- https://telorgabus.com/contents/files/542129010.pdfIn PDF document text
- https://rpdev.org/ckfinder/userfiles/files/8694787004.pdfIn PDF document text
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/nikujopag.pdfIn PDF document text
- https://exam11.menapoint.com/app/webroot/upload/files/narab.pdfIn PDF document text
- http://gidromall.ru/img/uploads/file/nimixefurepazuf.pdfIn PDF document text
- http://sparan-art.ru/ckfinder/userfiles/files/80557319730.pdfIn PDF document text
- http://duplisite.com/userfiles/file/tebafimadojerilolevusuxil.pdfIn PDF document text
- http://konberdbio.com/upload/files/50509572694.pdfIn PDF document text
- http://clinicaveterinariasangiacomo.it/userfiles/files/vedofipusosizimaxudavezij.pdfIn PDF document text
- http://ajisushionline.com/uploads/files/32263503523.pdfIn PDF document text
- https://ngonluathan.vn/images/ckeditor/files/3788012961.pdfIn PDF document text
- http://hai-bi.com/uploads/files/202109010601186592.pdfIn PDF document text
- http://ipost.mn/ckfinder/userfiles/files/28101180112.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b633ebcf46---43248547883.pdfIn PDF document text
- http://dar-tom.pl/userfiles/file/4401898782.pdfIn PDF document text
- http://poornasreehomeoclinic.com/ckfinder/userfiles/files/76831982296.pdfIn PDF document text
- http://marsalanoleggio.it/userfiles/files/moramugabu.pdfIn PDF document text
- http://sanitaerprofi.ch/fckeditor/editor/images/file/57592885424.pdfIn PDF document text
- http://srilakshmienterprises.net/uploads/24549933998.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_off0000e7ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7EA | 17208 bytes |
SHA-256: 507624ec7c0f36c8add65a6adcd2e8bb15d9cc72ce3ae4fd0db601bf7afa78bc |
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font_01_sfnt_off0001140f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1140F | 10456 bytes |
SHA-256: cf7f1334919801263b606d1cf980cbb85dca4e10e2c724d3d7611b9fb1f22986 |
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font_02_sfnt_off00012bda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BDA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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