MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, with high-severity heuristics indicating PDF links to algorithmically generated URLs on potentially disposable domains. The presence of numerous external URIs, many with unknown reputations, strongly suggests a phishing or link-farming campaign. No scripts were extracted, but the overall structure points to a malicious PDF designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://eluvial.com/sites/all/sites/eluvial.com/files/22097164072.pdf In PDF document text
- https://jooli.ru/ckfinder/userfiles/files/11583734347.pdfIn PDF document text
- http://ohadalegistrocbarter.com/ckeditor/uploads/files/pisajajupuri.pdfIn PDF document text
- http://intemhathanh.com/img_duhoc/files/kepumijesigovedozow.pdfIn PDF document text
- http://presssimayeshahr.ir/pic/file/4396518266.pdfIn PDF document text
- http://seoaudytor.pl/userfiles/file/lepavoxigulimipa.pdfIn PDF document text
- http://cabanagarden.hu/editor_up/40996901438.pdfIn PDF document text
- https://rm-parketi.si/uploads/lipoxagowonuvevem.pdfIn PDF document text
- https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/vowujijonalajuda.pdfIn PDF document text
- http://conelser.hu/fck_uploads/file/giwigoxowar.pdfIn PDF document text
- http://thietbimaugiao.vn/Images_upload/files/dogidewaxu.pdfIn PDF document text
- http://biurod9.pl/public/userfiles/file/norelurifibexukuxakuwon.pdfIn PDF document text
- http://podlahyadvere.sk/editor_uploads/system/files/walegedu.pdfIn PDF document text
- http://assotechne.eu/userfiles/files/88426195818.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a5b7776371---putosujeruziwegu.pdfIn PDF document text
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/pimewo.pdfIn PDF document text
- http://the-bom.kr/upfile/files/dozosazalusinoxi.pdfIn PDF document text
- http://weldingplaza.com/files/file/85012628098.pdfIn PDF document text
- https://mgc.to/sites/web/upload/files/81127160329.pdfIn PDF document text
- http://eichler-kammerer.de/doweweg.pdfIn PDF document text
- http://studioindelicato.com/userfiles/files/81950793849.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad74b7a573---lerolipejorik.pdfIn PDF document text
- https://tourpon.kr/FileData/ckfinder/files/20210911_EFE704FB9D8F3DDF.pdfIn PDF document text
- http://l-max.ru/userfiles/file/3945158919.pdfIn PDF document text
- https://horkolas-gatlas.hu/ufiles/file/satoxujofokibikazilisafax.pdfIn PDF document text
- https://dazhonghua1688.com/ckfinder/userfiles/files/bamakomovebupunabifi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=organic+chemistry+demystified+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_off0000b71e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB71E | 16104 bytes |
SHA-256: c2b83fc2f4e2fb8ef07937969c54f8887cc47c9e0fa3b3ce405c50be47d67ba8 |
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font_01_sfnt_off0000dff7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFF7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f80e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF80E | 11040 bytes |
SHA-256: c512951b608f675b77fa8e1a91f52aaff61c86c237d59ee872582cc54848cea0 |
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