MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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://drlanda.hu/user/file/34943644624.pdf In PDF document text
- https://shunnasato.com/24531388687.pdfIn PDF document text
- http://lovesenergy.nl/file/relexewobejibevigugofigu.pdfIn PDF document text
- https://braindevelopmentmaps.org/userfiles/files/68544140630.pdfIn PDF document text
- http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/lojixetokemupasapuzever.pdfIn PDF document text
- https://nangluongvada.com/uploads/files/52796142397.pdfIn PDF document text
- https://wct.goldcrownresort.com/magazine_files/files/96208172083.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee525da826---degubu.pdfIn PDF document text
- https://homestayhoian.thamtuddt.com/uploads/image/files/7000112775.pdfIn PDF document text
- http://gpp300.fr/userfiles/file/viwufawosib.pdfIn PDF document text
- http://www.icareonline.net.au/ckfinder/icare/files/raduvuxiwovukaxowozo.pdfIn PDF document text
- http://tjjjsh.com/uploads/files/21912037416.pdfIn PDF document text
- https://profm.hu/files/file/subibizofiko.pdfIn PDF document text
- http://langmoon.jp/js/upload/files/wajivujalado.pdfIn PDF document text
- http://geoplan.su/userfiles/file/4299611128.pdfIn PDF document text
- https://acrgruppe.de/userfiles/file/74551776557.pdfIn PDF document text
- https://metnar.pl/web/uploads/files/ridalifarerizasu.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353d035edaf---fakuwaj.pdfIn PDF document text
- http://luijkzonwering.nl/image/file/51152880379.pdfIn PDF document text
- https://daynexweb.com/upload/ckfinder/files/81576582442.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/16308610982405.pdfIn PDF document text
- http://torremaggiore.sitmap.it/files/files/99221717065.pdfIn PDF document text
- https://augsburger-dartliga.de/uploads/file/bimimuvupemubesiwesitis.pdfIn PDF document text
- http://didopack.com/files/17223650773.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=difference+of+prime+and+composite+numbersPDF 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_off0000bbd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBD8 | 10976 bytes |
SHA-256: b6e86b5130fc2b20ac35e28dcb53b9402ecd492f6756618a0610b1d0b9978d24 |
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font_01_sfnt_off0000d51d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD51D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ed2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED2F | 16604 bytes |
SHA-256: dd751b12f2c356dfcccb0571d18f0988f57a18928e7dbd965ad864c072c00aea |
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