MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many of which point to suspicious PDF files on various domains, suggesting a link farm or distribution network. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically indicates the document's purpose is to create a network of links on disposable hosting, likely for SEO manipulation or to serve as a landing page for malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://ksiclubbiz.ksiclub.org/svnprojects/DHD/Source/images/files/jisujuvetaduvuxefe.pdf In PDF document text
- http://liebherr-tr.com/userfiles/file/10564644471.pdfIn PDF document text
- https://www.sensiblemachines.com/ckfinder/core/connector/php/files/kewogavijo.pdfIn PDF document text
- http://citysoupsbellevue.com/uploads/files/fukanowono.pdfIn PDF document text
- http://andlupa.com/userfiles/file/90700005019.pdfIn PDF document text
- https://sesconbs.org.br/ckfinder/userfiles/files/zodavinanuwakageda.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca322b5f45---77576225343.pdfIn PDF document text
- https://avigailpekelman.com/sites/default/files/file/nakapiveg.pdfIn PDF document text
- http://westpakusa.com/phpsites/vertical_living/uploads/file/mezewidowuga.pdfIn PDF document text
- http://golden-candies.ru/webroot/files/files/41084220724.pdfIn PDF document text
- http://el-system.jp/uploads/2012/files/36118287824.pdfIn PDF document text
- https://doucetplasticsurgery.com/ckfinder/userfiles/files/95470484155.pdfIn PDF document text
- https://altinhediyeler.com/calisma2/files/uploads/6310441661.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/lfenq89cmomfc3lb9m9rlnvumg/99242895872.pdfIn PDF document text
- https://plasy.com/uploads/file/kesaloxo.pdfIn PDF document text
- http://marta-galan.com/files/varios/file/fawepoteniwexipuzax.pdfIn PDF document text
- http://zatuchlina.cz/upload/file/gusiwawuxigefazowav.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021091015210773499.pdfIn PDF document text
- http://bongoes62.dk/userfiles/file/80352229073.pdfIn PDF document text
- https://nikunjfoundation.org/ckfinder/userfiles/files/35332310328.pdfIn PDF document text
- http://www.centralperdana.com/file/jigafiwawoxifitomasolalom.pdfIn PDF document text
- https://petandpuppies.com/userfiles/file/bobemamofedipapidukewad.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/sizuzafulovojiziro.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=download+uc+browser+for+android+4PDF link annotation
- 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_off0000bb76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB76 | 17064 bytes |
SHA-256: b6116645f1d0b684f32f0c1d39c05b20fe51291a1b0d55e9ad33af1734c18562 |
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font_01_sfnt_off0000e750.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE750 | 10776 bytes |
SHA-256: e9909527040f2902b44928f805d6682f8a53851cda66a26085bb775f4057c67e |
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font_02_sfnt_off00010051.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10051 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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