MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates the document is part of a link farm, suggesting it's designed to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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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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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 http://someteme.com/archivos/_20210916005848.pdf In PDF document text
- http://noithatmyhome.com/img/files/ribirekuxirumuvonemeribow.pdfIn PDF document text
- http://rund.cz/UserFiles/File/riwepuguwobunopazekekafiv.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/39011352692.pdfIn PDF document text
- http://bsa.by/ckfinder/userfiles/files/73787269708.pdfIn PDF document text
- http://ebbers-schilderwerken.nl/uploads/files/lopukafiwewod.pdfIn PDF document text
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/wamobolelefosafib.pdfIn PDF document text
- http://tensoinox.com/userfiles/files/debizefom.pdfIn PDF document text
- http://pushgroup.lv/userfiles/files/tamode.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161416a9d3837a---69958153783.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/45405156320.pdfIn PDF document text
- https://memorybg.net/app/templates/js/ckfinder/userfiles/files/komefadudalawirukobi.pdfIn PDF document text
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/30a9225f3590fbb902df38ffd38aa4f2/7032928546.pdfIn PDF document text
- http://chothuexeninhbinh.net/data/dulieu/files/25962282438.pdfIn PDF document text
- https://prtl.pl/userfiles/file/poxerawuvofapi.pdfIn PDF document text
- https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/77207970440.pdfIn PDF document text
- http://donkaew-furniture.com/ckfinder/userfiles/files/25941735220.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/lugobil.pdfIn PDF document text
- https://worldmedglobal.com/userfiles/files/lijebudu.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/70910224018.pdfIn PDF document text
- http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/71821141757.pdfIn PDF document text
- http://rmgoals.com/userfiles/files/67540681952.pdfIn PDF document text
- http://thietbikhachsanvinhhung1.com/upload/files/forapowasodisig.pdfIn PDF document text
- http://119pump.net/d/files/15261140936.pdfIn PDF document text
- https://kuzeyilac.com/resimler/files/31874399990.pdfIn PDF document text
- https://braveathlete.net/geektic/files/17014326996.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=especially+file+explorerPDF 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_off0000df0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF0D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f71f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF71F | 17732 bytes |
SHA-256: 4974762b6d834e3ae4809c81678810b56137c4538c7888dd49e3bf29be04a2af |
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font_02_sfnt_off0001246f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1246F | 10468 bytes |
SHA-256: 6c12e3f941d59f0c9f080802c58141c2951078641a2123cd123c41b3074987fd |
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