MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic suggests the document is designed to trick users into installing malicious browser extensions or updates. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing or social engineering attack, likely aiming to compromise user credentials or deliver further malware. The presence of numerous unknown URLs suggests a broad phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://joeun-it.com/userData/board/file/19133993042.pdf In PDF document text
- http://marcelponjee.nl/ponjeefiles/file/67171819630.pdfIn PDF document text
- http://studiotecnicodavico.eu/userfiles/files/roferaxapurabotetipofed.pdfIn PDF document text
- https://safarekhoob.ir/basefile/safarekhoobir/files/27131153523.pdfIn PDF document text
- https://drhuanghair.com/uploads/files/202109140452502970.pdfIn PDF document text
- http://centreforeffectivecoaching.com/media/file/tafejavikomilipet.pdfIn PDF document text
- https://khambenhxahoi115.com/images/files/lutemanepoz.pdfIn PDF document text
- http://oppedisanorobertosrl.com/userfiles/files/44364109176.pdfIn PDF document text
- https://hmanagement.net/userfiles/file/93121351567.pdfIn PDF document text
- http://trlgpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/52108013449.pdfIn PDF document text
- https://www.colline-eternelle.com/ckfinder/userfiles/files/xevalagiretefozide.pdfIn PDF document text
- http://haohanlegend.com/Uploadfiles/files/novabipo.pdfIn PDF document text
- https://pisangmanis.com/contents/files/50948556582.pdfIn PDF document text
- http://aktifithalat.com/resimlerfiles/zukufuxixur.pdfIn PDF document text
- https://jurad.eu/files/file/bovup.pdfIn PDF document text
- http://studiopignotti.it/userfiles/files/85070366737.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613485443dfe6---40302544490.pdfIn PDF document text
- http://hitplus.eu/userfiles/file/madefuzetuxigu.pdfIn PDF document text
- http://kovacsoltvaskerites.hu/images/file/dawijesuris.pdfIn PDF document text
- http://www.centrosanmarco.eu/img/news/files/javufalikewuwolezu.pdfIn PDF document text
- http://tid.vn/upload/files/jegabi.pdfIn PDF document text
- http://lapmaymn.samdigroup.vn/app/webroot/upload/files/miwodojudu.pdfIn PDF document text
- http://horizonpestservices.com/userfile/15787590343.pdfIn PDF document text
- https://casaalu.com/luutru/files/fakapoweluziwisatobi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=sms+backup+and+restore+pcPDF 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_off0000d5af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5AF | 10944 bytes |
SHA-256: d7cbb4dc50586fd155fa99e7d3b0a6fe5a21d41276ac0ae757c8f1ffa46ae6ae |
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font_01_sfnt_off0000eede.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEDE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000106f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106F0 | 18892 bytes |
SHA-256: eaa4784bd0ae8978a394c87a43e98c89e2929d176ebecad45c49eb363d6c4bc5 |
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