MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external URLs, many hosted on disposable domains, suggesting a link farm or phishing infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to download and execute a second-stage payload or redirect users to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://philabc.ru/uplcv?utm_term=train+sim+android PDF link annotation
- http://gld-lining.com/user_img/files/51731489683.pdfIn PDF document text
- http://location-venise.com/italie_documents/files/52668457032.pdfIn PDF document text
- https://doanandieuduong295doson.vn/namthuan/images/news/files/73120983473.pdfIn PDF document text
- http://aesg2edcv.handylover.com/upload/files/nusus.pdfIn PDF document text
- http://obraz-tlt.ru/userfiles/file/53249899666.pdfIn PDF document text
- http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/44422571311.pdfIn PDF document text
- http://titusauto.hu/kepek/file/36114914467.pdfIn PDF document text
- https://primer-spb.ru/files/files/61953273517.pdfIn PDF document text
- https://nirkongrp.com/ckfinder/userfiles/files/47364180871.pdfIn PDF document text
- http://dfwarbitrator.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lekixalizix.pdfIn PDF document text
- http://studiophotosfashion.it/userfiles/files/mamejanefomum.pdfIn PDF document text
- http://stepasidemedical.com/images/uploads/file/72346098368.pdfIn PDF document text
- https://tndvn.com/js/ckfinder/userfiles/files/23283050909.pdfIn PDF document text
- http://tuderprogettazione.it/userfiles/files/72869358488.pdfIn PDF document text
- http://dsraxys.com/uploads/sokaregolevirazizo.pdfIn PDF document text
- http://biosystech.com/pdsFck/file/8834678611.pdfIn PDF document text
- http://pascalparrot.com/uploads/assets/file/83600089328.pdfIn PDF document text
- http://kythuatviet.vn/uploads/userfiles/file/sazevedonajunobajivo.pdfIn PDF document text
- https://ldcpc.com/ckfinder/userfiles/files/kadudiwuvogusegisu.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1ebf95771---52710820024.pdfIn PDF document text
- https://tekstilkentrehber.com/upload/ckfinder/files/bejusovugi.pdfIn PDF document text
- http://kaus21.com/userData/board/file/jizijewolebarazevelamu.pdfIn PDF document text
- http://trustycctv.com/ckfinder/userfiles/files/rabogozo.pdfIn PDF document text
- http://www.rajpuc.pl/pics/file/segif.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_off0001aa92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AA92 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001c2a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C2A9 | 10096 bytes |
SHA-256: 45e97a1328a51c5c41ddd725d25a39205cf377dd361fb846fcf49b588b9d03d0 |
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font_02_sfnt_off0001d907.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D907 | 18976 bytes |
SHA-256: 0e11056e7fdd9ea4e25ae264d056114e557cc33d7ec7ce002e0a095a6e6c9757 |
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