MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous embedded URLs that point to various PDF files hosted on potentially disposable domains, indicating a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests this is a phishing or malware distribution tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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 https://ketchas.ru/uplcv?utm_term=physics+for+scientists+and+engineers+serway+jewett+pdf PDF link annotation
- https://rubin2000-distribuitorshop.ro/userfiles/file/43999762919.pdfIn PDF document text
- http://showpelec.com/data/file/20210923_080409_631.pdfIn PDF document text
- http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/21280012349.pdfIn PDF document text
- http://nawooelcs.com/upload/userfiles/2021/09/files/210921020420.pdfIn PDF document text
- http://aptwash.com/userData/ebizro_board/file/rurabaven.pdfIn PDF document text
- http://drdj.friend-match.com/upload/files/mejanuzufegiragu.pdfIn PDF document text
- http://cabinet-blin.fr/ressource/site-image/files/wutogetafowanazafokexu.pdfIn PDF document text
- https://planningpvedh.nl/ckfinder/userfiles/files/tejofixegomizabukesufejaj.pdfIn PDF document text
- https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/47163936171.pdfIn PDF document text
- http://plantessentialoil.com/upload/files/sofososuwiji.pdfIn PDF document text
- https://vietucmould.com/img-vietuc/files/wevavavaxorawafovavisix.pdfIn PDF document text
- http://fertilityupdates.com/userfiles/files/bavogolixu.pdfIn PDF document text
- http://technoprofile.ru/userfiles/file/xesonuwupido.pdfIn PDF document text
- https://asiantms.com/ckfinder/userfiles/files/22515466337.pdfIn PDF document text
- https://verredistri.fr/xmedia/file/kevexubolexi.pdfIn PDF document text
- http://sfssolution.com/userfiles/file/texukig.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/83356168402.pdfIn PDF document text
- http://fulns.com/uploadfile/fckedit/file/1630474569cS59.pdfIn PDF document text
- https://repare-ton-smartphone.com/userfiles/file/sedege.pdfIn PDF document text
- https://psiakocky-potisk.cz/webpagebuilder/ckfinder/userfiles/files/53118503866.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/16149b128af847---vemadadunep.pdfIn PDF document text
- http://maychaybocaocap.com/app/webroot/uploads/files/patewari.pdfIn PDF document text
- http://ozdermusavirlik.net/userfiles/file/girevoworebiwiw.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/59153477834.pdfIn PDF document text
- http://jfhcoaching.nl/userfiles/files/55200249807.pdfIn PDF document text
- http://krukaiart.com/userfiles/files/tebotulitemi.pdfIn PDF document text
- http://cantinachitarra.it/userfiles/file/nobadunabubezugono.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1614b87b2cd2d5---nolemotezu.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_off0000b649.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB649 | 16816 bytes |
SHA-256: 47b48f139366c83e87dea61a8f7d8a69f47a5c1d7805478889e31d84da7eb179 |
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font_01_sfnt_off0000e19a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE19A | 11184 bytes |
SHA-256: cca05bb01456548871bcddcaed5d06d2d3872e21f9da56acbfb5d66441e882f4 |
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font_02_sfnt_off0000fb95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB95 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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