MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the document uses social engineering tactics, specifically a 'Browser Install Lure' and a 'Download Button', to trick users into installing unwanted software or extensions. Several unknown URLs were extracted, suggesting potential download or redirection points for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://355353.ru/userfiles/file/getufonuzemilakisa.pdf In PDF document text
- http://ksnjl.com/userfiles/files/78680127099.pdfIn PDF document text
- https://grupo-kayros.com/userfiles/file/wirujurerinesotovagok.pdfIn PDF document text
- http://nomayaku.com/userfiles/file/jetafexabekibodigaku.pdfIn PDF document text
- http://aczelzalog.hu/tmp/94766596946.pdfIn PDF document text
- http://china-engine.net/ckfinder/userfiles/files/tebuta.pdfIn PDF document text
- https://nstyapi.com/resimler/files/6812760013.pdfIn PDF document text
- https://kanat.com/upload/ckfinder/files/binavexuzavivawerereli.pdfIn PDF document text
- http://uspeh-kursk.ru/ckfinder/userfiles/files/vawinalakivofokifusejirug.pdfIn PDF document text
- https://melz-feu.ru/upload/65711976615.pdfIn PDF document text
- https://xn--p3t29jo1ed4o4xw.tw/upload/files/29507254525.pdfIn PDF document text
- https://hantverksakuten.se/ckfinder/userfiles/files/28995388679.pdfIn PDF document text
- http://chono.mn/uploads/userfiles/files/mesawisogudemavilakok.pdfIn PDF document text
- https://gangnampools.com/contents/files/96782823492.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/75166699230.pdfIn PDF document text
- http://kfnmdg.com/upfolder/e/files/20210907112419.pdfIn PDF document text
- http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/linavijeraxobu.pdfIn PDF document text
- http://adec-interiors.net/Uploads/file/37000511139.pdfIn PDF document text
- http://we2meeting.com/ckfinder/userfiles/publics/files/kulixuzubomusive.pdfIn PDF document text
- https://vinamex.info/uploads/news_file/86156597800.pdfIn PDF document text
- http://homeopathyhongkong.cn/files/24421100556.pdfIn PDF document text
- http://realestatespoznan.com/uploads/janafanafokaro.pdfIn PDF document text
- https://ktmcollege.org/public_html/userfiles/file/bixudugepepifej.pdfIn PDF document text
- http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/98278011379.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=rk+jain+and+srk+iyengar+advanced+engineering+mathematics+pdf+downloadPDF 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_off0000f180.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF180 | 11600 bytes |
SHA-256: 3b451c78a08f1725996230d1c0a3acea64dba3f4c93c27df1125b1cd36e63b01 |
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font_01_sfnt_off00010cad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAD | 18428 bytes |
SHA-256: 31754f64313b0292ca8217704433499af4460e37f35cc85a94a418b10bf96d20 |
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font_02_sfnt_off00013cee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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