MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to PDFs hosted on disposable domains, indicating a link farm designed to obscure the ultimate destination. The presence of external URIs and the link farm heuristic suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
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://asirius.su/wp-content/plugins/super-forms/uploads/php/files/6eb22c8ea94e01137d3aa3efd02e7db8/zofixisemi.pdf In PDF document text
- http://innotack.com/userfiles/file/siluzexejegivoterewodesi.pdfIn PDF document text
- http://linker-apps.com/files/ruxojojiluxowabukidan.pdfIn PDF document text
- https://digiconelectronics.com/media/13185989323.pdfIn PDF document text
- http://zhihepvb.com/upload/ckimg/files/202109100005571309.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16139cb6c9ac1a---55670069694.pdfIn PDF document text
- https://ottopianos.nl/files/90658591155.pdfIn PDF document text
- https://schachverein-marchhoefe.ch/fcsr/news/upload/file/wanekufovokavutod.pdfIn PDF document text
- http://sasnowosielski.com/ckfinder/userfiles/files/94748144544.pdfIn PDF document text
- https://vresponse.net/userfiles/file/dogeburuzufiji.pdfIn PDF document text
- https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/82219055607.pdfIn PDF document text
- https://g4m3s-4p1-12s1.com/contents/files/duzizozedewugejoda.pdfIn PDF document text
- https://akvanova.ru/sites/default/files/kogigak.pdfIn PDF document text
- http://riviera.az/userfiles/file/befupatedenikalisujetabi.pdfIn PDF document text
- https://bawwabatrizq.com/userfiles/file/99455516204.pdfIn PDF document text
- http://trovas.com/userimages/49309255481.pdfIn PDF document text
- https://tidurmalam2.com/contents/files/noxasujuxozopudosuzebib.pdfIn PDF document text
- http://sarkar.ie/userfiles/file/bobawaxum.pdfIn PDF document text
- http://tc-muehlacker.de/data/tcmuehlacker/userfiles/file/52415656047.pdfIn PDF document text
- http://violetstudio.in/userfiles/file/5255732420.pdfIn PDF document text
- https://signatureshreyas.in/userfiles/file/97988676256.pdfIn PDF document text
- https://taiwan-tiaya.com/upload/tiaya_official/files/zinuvinorerirovalofe.pdfIn PDF document text
- https://superpackeg.com/userfiles/file/temovarujifuvidebafusuba.pdfIn PDF document text
- http://ride.hu/images/uploads/files/17182574133.pdfIn PDF document text
- http://edu-family72.ru/content/images/uploads/file/rolalozusew.pdfIn PDF document text
- http://mobil-tech.com/files/gabatiwifobawazelo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=nice+words+that+start+with+the+letter+yPDF 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_off0000fa2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA2D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011244.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11244 | 10540 bytes |
SHA-256: 15d6e901ec92215cfe407a5db1f9d68ce73c5d064844f49599ee9e98b876fe18 |
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font_02_sfnt_off00012a85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A85 | 18712 bytes |
SHA-256: fbfcc6c8b06a664aed2f3b71d0e96530e26f6737823f12294cb592d29d1474dc |
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