MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which are structured to host PDF files, suggesting a link farm designed to obscure the ultimate destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicates a malicious intent to distribute content through a network of disposable hosts. While no scripts were explicitly extracted, the nature of PDF exploits often involves embedded JavaScript for malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 5
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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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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://honghow.com/ckfinder/userfiles/files/86242259744.pdf In PDF document text
- http://e-store-sys.com/userfiles/file/716607175.pdfIn PDF document text
- https://valeaflorilor.ro/img/uploads/file/23614386630.pdfIn PDF document text
- https://ukmalayalamnews.com/userfiles/file/23006550073.pdfIn PDF document text
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130dc81ea15a---ziletagokon.pdfIn PDF document text
- https://ww150002.linebot.net/upfile/files/20210908021025.pdfIn PDF document text
- https://nusamulticentralestari.com/Uploads/userfiles/files/61661985386.pdfIn PDF document text
- https://dycmc.com/DATA/upload/files/202109062010209335.pdfIn PDF document text
- http://stroisvias.ru/userfiles/file/mepokebotobojojiris.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/35359506106.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-9-7/20210907231754239308.pdfIn PDF document text
- http://ajivikafinance.com/userfiles/file/96237171231.pdfIn PDF document text
- http://ossokahve.com/upload/file/2184624690.pdfIn PDF document text
- https://principesgs.com/userfiles/file/vebusesigefexet.pdfIn PDF document text
- https://tennis-samara.ru/img/file/7031779994.pdfIn PDF document text
- http://techsystem.gr/data/uploads/ckeditor/files/15256292988.pdfIn PDF document text
- https://qigoodteam.com/uploads/files/202109050320274336.pdfIn PDF document text
- http://1hozain.ru/files/userfiles/files/983853777.pdfIn PDF document text
- http://technimexvn.com/images/ckeditor/files/popadoporazikojumavapom.pdfIn PDF document text
- http://decom.pro/admin/ckfinder/userfiles/files/wosuxudawolo.pdfIn PDF document text
- http://vikohasanfiber.com/upload/files/nepulurafamod.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/3202347692.pdfIn PDF document text
- http://www.kigimex.com.vn/ckfinder/userfiles/files/75335891282.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=free+sites+to+watch+tv+showsPDF 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_off0000d85f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD85F | 17484 bytes |
SHA-256: a380863f2e4dbe297e77a4b00d07b91b7a2f39d6e4a46c5eb05b554720f44f6a |
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font_01_sfnt_off00010579.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10579 | 10308 bytes |
SHA-256: 1cf19e1e0e250ad7cc61fa17b17994594cf614fb9fa76b684d98f193091dd24e |
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font_02_sfnt_off00011cf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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