MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to disposable domains, indicative of a phishing or link-farming operation. The 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics, along with the 'PDF_MALFORMED_EXPLOIT_STREAM_LENGTH' finding, strongly suggest malicious intent. The presence of external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicate the document's primary purpose is to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
Heuristics 6
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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://synerhu.ru/uplcv?utm_term=best+smartphone+2021+bangladesh PDF link annotation
- http://arabstina.com/ckfinder/userfiles/files/rorovewemutapujazisavej.pdfIn PDF document text
- http://pololanna.com/user_img/files/18428971988.pdfIn PDF document text
- https://letstravelforacause.com/miet/assets/files/69039517777.pdfIn PDF document text
- http://secoinblock.com/upload/files/bupopowadelavi.pdfIn PDF document text
- http://coumert.com/images/file/40658384714.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614700140d3e4---42125758271.pdfIn PDF document text
- http://dc-a0dcf319a153.breakthroughsport.com/userfiles/files/30718035688.pdfIn PDF document text
- https://kawanmto.info/contents/files/rafegavemewagijerapajude.pdfIn PDF document text
- https://cosmopolitanhotel.eu/uploads/wysiwyg/files/baxejajujepuguregolo.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/7756f86d2ccacff82ac21094cbdb3d7b/47222632770.pdfIn PDF document text
- http://thaiurethane.com/userfiles/file/38636964744.pdfIn PDF document text
- https://eastoncn.housemember.com/uploads/files/gijijosemugugekumivileg.pdfIn PDF document text
- http://nghiencuuykhoa.com/uploads/userfiles/file/76925429625.pdfIn PDF document text
- http://xboxheerlen.nl/userfiles/file/72686969739.pdfIn PDF document text
- http://arebiatours.com/uploads/files/20199967234.pdfIn PDF document text
- http://vandervalk.reviews/app/webroot/files/userfiles/files/dumufuxoliwi.pdfIn PDF document text
- http://hrudolf.com/userfiles/febew.pdfIn PDF document text
- https://leifs-auto.dk/images/file/11111920101.pdfIn PDF document text
- http://www.peretprod.ro/content-images/file/dutaviferir.pdfIn PDF document text
- http://clinicaveterinariailmarzocco.it/userfiles/files/85566455428.pdfIn PDF document text
- http://changwontour.kr/FileData/ckfinder/files/20210914_B2D170C3CEC5EF31.pdfIn PDF document text
- http://contrast.no/ckfinder/userfiles/files/35432759606.pdfIn PDF document text
- https://www.elshandmadedesign.nl/ckfinder/userfiles/files/bokeni.pdfIn PDF document text
- http://nano-vip.com/ckfinder/userfiles/files/gamexegaxo.pdfIn PDF document text
- http://happyland-nsk.net/ckfinder/userfiles/files/69118798950.pdfIn PDF document text
- https://jancsoalapitvany.hu/ckfinder/userfiles/files/46855721751.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_off0000b4c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4C7 | 15088 bytes |
SHA-256: 54e67f49b942ec43988c8d7d647cefae4482c63858c1f95ccf6e015ada8eb32f |
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font_01_sfnt_off0000daa0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAA0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f2b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B7 | 11236 bytes |
SHA-256: e53c0b1990a72cf17ab426f875d7225bbd17dfc556ba2bcd21f56dedf9e03c46 |
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