MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external links, many pointing to other PDF files, suggests a phishing or scam campaign designed to trick users into downloading further malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating a large number of links on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://archism.ru/uplcv?utm_term=share+vpn+hotspot+android PDF link annotation
- https://ngoctraithaibinhduong.com/uploads/news_file/tosexapagivivetemokati.pdfIn PDF document text
- http://staractivecollection.com/resimler/site/files/71154080854.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/lufabazixipigosesojok.pdfIn PDF document text
- https://trouver-une-ssii.com/img/pics/files/46990500661.pdfIn PDF document text
- http://bafiti.com/sklep/userfiles/file/79833923884.pdfIn PDF document text
- http://djk-winkel.de/images/uploads/file/76707303779.pdfIn PDF document text
- http://hilimall.ae/uploads/files/1995592395.pdfIn PDF document text
- https://classconnbio.com/img-jacson/files/60926403938.pdfIn PDF document text
- https://irish-setter-zucht.info/ckfinder/userfiles/files/xafadi.pdfIn PDF document text
- https://srinivasagroup.com/ci/userfiles/files/ganal.pdfIn PDF document text
- http://greenhere.cn/upload/ckimg/files/202109050019005443.pdfIn PDF document text
- http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/lolomelenowa.pdfIn PDF document text
- http://infinity-pro.ru/userfiles/file/75191086428.pdfIn PDF document text
- http://patronusalapitvany.hu/public_html/upload/39255476416.pdfIn PDF document text
- https://lolakarimova.uz/ckfinder/userfiles/files/kowetipojunefinolu.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/zeragakupudowizi.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134106097317---72283972142.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614352f507b79---435718793.pdfIn PDF document text
- https://iringmalaysia.com/ckfinder/userfiles/files/74003391287.pdfIn PDF document text
- https://xn--49st2et51duvk.com/upload/files/28057883037.pdfIn PDF document text
- https://bamfieldrental.com/userfiles/file/tokiteremewupavajuragiz.pdfIn PDF document text
- https://huanghecables.com/d/files/timifevubejajojo.pdfIn PDF document text
- https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/88197337620.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_off0000e3a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A9 | 17976 bytes |
SHA-256: 7a4437baa1223a8993ee277e0f8605ef1bcf1a571bcb03517ab3eced7c1b01df |
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font_01_sfnt_off00011223.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11223 | 10584 bytes |
SHA-256: e873d45832e7d88409ede6378fa67c74573db031fb1f76ec77f92f7e9a021427 |
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font_02_sfnt_off00012a3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A3E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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