MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains, suggesting a link farm or phishing lure. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a high likelihood of malicious intent, possibly to redirect users to exploit kits or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://chothuexeninhbinh.net/data/dulieu/files/kixoz.pdf In PDF document text
- http://zetrade.cz/userfiles/file/61143540335.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/9776472972.pdfIn PDF document text
- https://eingangrad.ch/userfiles/files/13474350315.pdfIn PDF document text
- http://shinhwajudan.com/userData/board/file/38757908453.pdfIn PDF document text
- https://contemporaryteas.in/admin/uploads/file/nutefepe.pdfIn PDF document text
- http://gattoneva.pl/pages/userfiles/file/mapesadukefijozumaraz.pdfIn PDF document text
- http://flex-link.cn/uploadfiles/files/80866919384.pdfIn PDF document text
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/limatarobemixu.pdfIn PDF document text
- http://scea.edu.mn/ckfinder/userfiles/files/sozuv.pdfIn PDF document text
- https://konferencii.ru/js/ckfinder/userfiles/files/81865770239.pdfIn PDF document text
- http://studiophotosfashion.it/userfiles/files/55386288713.pdfIn PDF document text
- http://hai-bi.com/uploads/files/202109170449126173.pdfIn PDF document text
- http://www.performhabitat.fr/bundles/astadmin/js/ckfinder/userfiles/files/60949433886.pdfIn PDF document text
- http://bagumul.com/file_upload/spaw_upload/file/20210913205042.pdfIn PDF document text
- http://aktifimmo.lu/userfiles/files/fumobokunex.pdfIn PDF document text
- http://jdjcnc.com/upfolder/e/files/20210907050407.pdfIn PDF document text
- http://kamkmori.cz/ckfinder/userfiles/files/sawosebatus.pdfIn PDF document text
- https://lesura.net/userfiles/file/81530133376.pdfIn PDF document text
- http://kythuatviet.vn/uploads/userfiles/file/laferafokig.pdfIn PDF document text
- http://sanraimundo.cl/dyn/uploads/file/51409455560.pdfIn PDF document text
- http://reguitti-engineering.it/userfiles/files/30699609924.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161349aee03d3d---jugedawiwajafus.pdfIn PDF document text
- http://cutskytools.com/d/files/71817860951.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=airscreen+pro+mod+apkPDF link annotation
- http://pro.ovh.net/~tribuene/images/banque/file/xaxepipopixuron.pdfIn PDF document text
- http://s292376414.onlinehome.fr/datas/imgmail/file/giwanadun.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_off0000dab8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAB8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2CA | 18612 bytes |
SHA-256: fd1419c1375e098347703f485323d9b7f737715821db342f4d9fcc40ba7aedb8 |
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font_02_sfnt_off000123bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123BB | 10604 bytes |
SHA-256: 918b9d092d984d0aa6438d1914fbec36c9e3d2f4042f93fd4d81ff4dc9aa6301 |
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