MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to PDF files on various domains, suggesting a link farm or redirection mechanism. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating a non-clustered link farm on disposable hosting. While no scripts were explicitly extracted, the nature of the embedded URLs and the 'ML_NYX_PDF_MALICIOUS' firing suggest it may attempt to exploit PDF vulnerabilities or redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://euro-ex.com/images/blog/file/10933776716.pdf In PDF document text
- http://www.skk.com.hk/admin/ckfinder/userfiles/files/wizurijuxa.pdfIn PDF document text
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/nexudufegegerutu.pdfIn PDF document text
- https://mondoaudio.it/img/uploaded/file/42294189868.pdfIn PDF document text
- https://newfrio.com/userfiles/files/19777804783.pdfIn PDF document text
- http://cokhilegia.com/upload/files/9604062511.pdfIn PDF document text
- http://myblindz.com/fck_user_files/file/62861969505.pdfIn PDF document text
- http://daglichtfilters.nl/ckfinder/userfiles/files/nogalotulagig.pdfIn PDF document text
- https://dollarplus98.com/images/upload/files/tiposuruxetumito.pdfIn PDF document text
- http://beijingteye.com/upload/files/7764948107.pdfIn PDF document text
- http://chapelguild.com/images/usr/fizesepezopuwajaxufubus.pdfIn PDF document text
- http://csc0516.com/userfiles/file/20210905170838_7f3fw9.pdfIn PDF document text
- http://electronicaindex.nl/images/uploads/fajifos.pdfIn PDF document text
- http://ayrh.internet-match.com/upload/files/solosoru.pdfIn PDF document text
- https://goooinggroup.com/userfiles/files/20210910_040623.pdfIn PDF document text
- http://beijingteye.com/upload/files/38920436300.pdfIn PDF document text
- http://yonezawanet.jp/units/24250/zcycom/files/xakesaxeger.pdfIn PDF document text
- http://chemtron-vostok.ru/media/file/jinofesoguwokelarozero.pdfIn PDF document text
- https://egokituz.org/files/galeria/files/77688877566.pdfIn PDF document text
- http://swaptoys.org/ckeditor/uploads/files/20961418.pdfIn PDF document text
- https://orderpoet.com/ckfinder/userfiles/files/jimabu.pdfIn PDF document text
- http://maimungkorn.com/UserFiles/file/27581381993.pdfIn PDF document text
- http://montpellier-businessplan.com/mbp/upload/images/images/upload/ckfinder/bedelibufef.pdfIn PDF document text
- https://iword.de/userfiles/file/11743193806.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=zee+tamil+serial+timing+listPDF 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_off0000b30a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB30A | 19968 bytes |
SHA-256: 0da9e8f680db4093dc6fc37c9cfa2d00c2eb86f53d2d55e23653cc4ac6084739 |
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font_01_sfnt_off0000e6fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6FD | 10292 bytes |
SHA-256: f1e718e7d2711b3db2cd094c1233eea8d9db3c4d6210180dae12bac1e4fffee0 |
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font_02_sfnt_off0000fe1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE1E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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