MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains an embedded JavaScript stream, indicating potential for malicious scripting. The document also functions as a link farm, embedding numerous URLs, many of which are hosted on potentially disposable domains, suggesting a phishing or malware distribution attempt. The presence of embedded JavaScript points to an attempt to execute code, likely to redirect the user or download further payloads.
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 http://tc-muehlacker.de/data/tcmuehlacker/userfiles/file/35506218991.pdf In PDF document text
- https://euronuts2009.ge/files/files/bonuzagejegika.pdfIn PDF document text
- https://callmarkinvestments.fortunekenya.com/callmark/files/xesotabirezulopiladu.pdfIn PDF document text
- http://dynamicyunnan.com/ckfinder/userfiles/files/ragatewabudebalev.pdfIn PDF document text
- http://chiari-web.com/ckfinder/optimist/files/86002562491.pdfIn PDF document text
- http://achwvs.love-mrt.com/upload/files/20382665254.pdfIn PDF document text
- https://www.rougeindigo.com/ckfinder/userfiles/files/81108174385.pdfIn PDF document text
- http://allivecoat.com/userData/board/file/66826445184.pdfIn PDF document text
- https://rosenstein.lu/userfiles/files/29235777739.pdfIn PDF document text
- http://wooshin.kr/uploaded/file/52870441461329ae5c0db5.pdfIn PDF document text
- http://ortopediaszombathely.hu/editor_up/jowusudi.pdfIn PDF document text
- http://www.sec-ollivier-associes.fr/www/upload/file/mukerakase.pdfIn PDF document text
- http://cleanking.net/userData/board/file/70986084961.pdfIn PDF document text
- http://wang023spa.com/userfiles/202109file/2021090904054770554.pdfIn PDF document text
- http://zuche0551.com/upload/file/75858510471.pdfIn PDF document text
- http://miyagi.chi-kara.net/Upload/files/tubakanoziralufogivem.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///99826560762.pdfIn PDF document text
- http://cualuoiskydoor.com/webroot/img/files/xavalurig.pdfIn PDF document text
- http://kaiyudachem.com/filespath/files/20210910181141.pdfIn PDF document text
- http://citescolairedeledit.com/include/file/wavakadifovowigopekoz.pdfIn PDF document text
- http://dcbestwings.com/uploads/files/widodosuru.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16138e32bc01a3---62672552968.pdfIn PDF document text
- http://aolisenjiancai.com/data/files/59675327413.pdfIn PDF document text
- http://interfacetravels.com/app/webroot/js/ckfinder/userfiles/files/vometinukatubo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+hack+into+a+private+instagram+accountPDF 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_off0000b237.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB237 | 14896 bytes |
SHA-256: cb1d258d029aa6a47d6f01f1c95f1bcd3349c886af0f6d8b6802b1395d6ace68 |
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font_01_sfnt_off0000d7e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f000.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF000 | 11112 bytes |
SHA-256: 14f8917954a4621c39f803bdae6776769ff2081660b9e38fe7df87960e18ac5e |
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