MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as malicious, including a machine learning classifier and ClamAV, indicating it is likely a phishing or malware distribution attempt. The PDF contains numerous embedded URLs pointing to disposable hosting, characteristic of a link farm designed to redirect users to malicious content. The presence of external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://irlanc.ru/uplcv?utm_term=the+basic+laws+of+human+stupidity+free+pdf+download PDF link annotation
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/fc3562cdffcf73c5f153dfc92cb2d91e/peger.pdfIn PDF document text
- http://greentreeprep.com/cote_dor_import/admin/ckfinder/userfiles/files/54346815291.pdfIn PDF document text
- https://tsydesign.com/userfiles/jws/files/pebajezo.pdfIn PDF document text
- http://aallergy.netlovestories.com/upload/files/36224284474.pdfIn PDF document text
- http://nomorecpapmachine.com/userfiles/files/24693519135.pdfIn PDF document text
- http://sanitaerprofi.ch/fckeditor/editor/images/file/14375598204.pdfIn PDF document text
- http://yung-shun.com/userfiles/file/pumirame.pdfIn PDF document text
- https://dazhonghua1688.com/ckfinder/userfiles/files/winozeg.pdfIn PDF document text
- https://cryptobasics.biz/uploads/files/44873804512.pdfIn PDF document text
- http://sqc.jp/user_data/editor/ckfinder/core/connector/php/upload/files/fiziguvofajezo.pdfIn PDF document text
- http://tuecpa.com/file_media/file_image/file/9040587726.pdfIn PDF document text
- https://mmagame.com/userfiles/file/19974793383.pdfIn PDF document text
- http://anneadamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/8372858217.pdfIn PDF document text
- http://frutapacargentina.com/ckfinder/userfiles/files/99873197203.pdfIn PDF document text
- http://unibeauty.com.br/ckfinder/userfiles/files/44325007026.pdfIn PDF document text
- http://desiaussies.com/ckeditor/uploads/files/51935519719.pdfIn PDF document text
- https://mikludava.lt/images/files/lileje.pdfIn PDF document text
- http://gewoongroen.eu/app/webroot/files/userfiles/files/35975202309.pdfIn PDF document text
- http://woodbridgeabw.com/uploads/files/lifozumategivusexepogagog.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/ce806d01c531bab6fbb50b53f196c034/78001214684.pdfIn PDF document text
- https://emons-verlag.com/testarea/cwsCMSlight/media/files/72507539115.pdfIn PDF document text
- https://masihpt2.com/contents/files/tupimajasibopiwibabud.pdfIn PDF document text
- https://rmp-traueranzeigen.de/cms/files/zegesavuzogo.pdfIn PDF document text
- http://reanda.com/jingkelun/userfiles/files/20210903170121.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_off0000cc4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC4A | 11288 bytes |
SHA-256: 3cf819c8cfcb7d042749f7c11af76983f0f84fd65b7c710e01cd4ba60a046d2b |
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font_01_sfnt_off0000e678.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE678 | 17864 bytes |
SHA-256: 8dc5a4c6bfaf5e19c234b286313e507a5e1793625274fb8d88ae492c35ec519a |
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font_02_sfnt_off0001146f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1146F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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