MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. The presence of numerous external URIs, many hosted on disposable domains and configured as a link farm, strongly suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create malicious PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://smidgel.ru/uplcv?utm_term=get+free+instagram+views PDF link annotation
- http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/17705888586.pdfIn PDF document text
- http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/monupajalelinaris.pdfIn PDF document text
- http://slmj8.com/data/userfiles/files/bisin.pdfIn PDF document text
- http://madinagirls.com/easydo%20v2.00/files/uploads/83353066670.pdfIn PDF document text
- http://www.pethouse.es/ckfinder/userfiles/files/5670614986.pdfIn PDF document text
- http://istanbulballoons.com/ckfinder/userfiles/files/71584061472.pdfIn PDF document text
- https://yodishit.com/uploads/userfiles/file/xarubifaj.pdfIn PDF document text
- http://avvocato-callegaro.it/public/file/juzejukop.pdfIn PDF document text
- http://medica-eg.com/userfiles/file/deroridonugafowatumufoz.pdfIn PDF document text
- http://newbiesites.com/userfiles/file/xewerupako.pdfIn PDF document text
- http://www.de.ruben.pl/ckfinder/userfiles/files/nasajaweziwebirofixan.pdfIn PDF document text
- https://youxsoft.com/uploads/files/jexipelo.pdfIn PDF document text
- http://les-dvorik.ru/userfiles/file/19234301369.pdfIn PDF document text
- http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lumil.pdfIn PDF document text
- https://sagarexpress.com/userfiles/file/dududanewawoxovijefuvunax.pdfIn PDF document text
- https://agriplan-rs.com/dados/ckfinder/files/77737556331.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/161346a5a632fc---54051667928.pdfIn PDF document text
- https://0924055971.com/uploads/files/202108312235232567.pdfIn PDF document text
- http://harchovyk.com/userfiles/file/vidabelovik.pdfIn PDF document text
- http://vuoncotichdep.com/upload/files/72192125369.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/78253751669.pdfIn PDF document text
- http://dsacare.com/admin/uploads/file/81567817155.pdfIn PDF document text
- https://myreply.mobi/snappshott/editor//file/33657441347.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_off0000d90f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD90F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF121 | 18248 bytes |
SHA-256: c8b07f2ca5f8a59f30d08072ed1ef5217e264ba6a34ecabc6cbb18c7afff1983 |
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font_02_sfnt_off00012006.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12006 | 10580 bytes |
SHA-256: e07ecb60892629ab6158ba3b3f7b5c954a4b67d792fabc29d2e157c986092c32 |
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