MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, identified by the PDF_JS heuristic, which is a common technique for delivering malicious payloads. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely downloads and executes a second-stage payload from one of the extracted URLs, aligning with the T1059.007 (JavaScript) and T1566.001 (Spearphishing Attachment) MITRE ATT&CK techniques.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://dunakanyarfesto.hu/ckfinder/userfiles/files/nevumekolujiruz.pdf In PDF document text
- http://quangphong.vn/uploads/image/files/ketokuvofapubuwumuneroxip.pdfIn PDF document text
- https://cafesca.info/ckfinder/userfiles/files/kenumivekatorefivewosekuv.pdfIn PDF document text
- http://thermcom.cz/userfiles/file/76619526493.pdfIn PDF document text
- http://drapikowski.pl/uploaded/fck_files/file/62096379018.pdfIn PDF document text
- http://avtrak.ru/ckfinder/userfiles/files/92865409383.pdfIn PDF document text
- https://starfoil-mail.nl/uploads/wysiwyg/xeliriporofusosoxe.pdfIn PDF document text
- https://nbretail.com.vn/ckfinder/userfiles/files/gaxuvalafenibomenowux.pdfIn PDF document text
- http://kramor.bg/userfiles/file/34876984418.pdfIn PDF document text
- http://discus-rus.ru/upl/file/ramerekig.pdfIn PDF document text
- http://kesherisrael.com/uploadEditor/files/22265903486.pdfIn PDF document text
- http://0225674989.kad.tw/kads/ckfinder/userfiles/files/35342184463.pdfIn PDF document text
- http://kingtonkatsu.com/uploads/files/68012988125.pdfIn PDF document text
- http://abw10thstreetne.com/uploads/files/ripifebenufaferasavorev.pdfIn PDF document text
- http://atomicattack.com/atomic/fckimages/file/mofixajikutenidisovisabi.pdfIn PDF document text
- http://kpotplace.com/uploads/files/wonutuverikur.pdfIn PDF document text
- http://speed-r.com/js/upload/files/68164878408.pdfIn PDF document text
- http://onfireinteriors.com/userfiles/53172673836.pdfIn PDF document text
- https://vinamex.info/uploads/news_file/31708023023.pdfIn PDF document text
- http://vinhthuan.vn/upload/files/dovamojimikot.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/34903143091.pdfIn PDF document text
- https://carcable-bg.com/uploads/pictures/files/pinulokodexuk.pdfIn PDF document text
- http://lica.plovdivweek.com/js/ckfinder/userfiles/files/95208750848.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613326a0eb712---ginedazekam.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=vba+macro+excel+pdfPDF 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_off0000bc8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC8A | 18160 bytes |
SHA-256: fc60c9acbac1a50f5e3348e6c8e4156f01888a45a4d7c863e11ae4c78ba4d832 |
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font_01_sfnt_off0000eb5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010371.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10371 | 10528 bytes |
SHA-256: c9ebfa3bc8c637ff98d05cb7300d43723fb0c3cfded67da93128418838d40def |
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