MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm pointing to compromised CMS uploads and disposable hosting. The embedded URLs, such as 'https://ketchas.ru/uplcv?utm_term=tekken+3+download+play+store', suggest a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and heuristic findings strongly indicate malicious intent, likely involving redirection to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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=tekken+3+download+play+store PDF link annotation
- http://paitoonbox.com/userfiles/files/89611563918.pdfIn PDF document text
- https://miguktour.com/FileData/ckfinder/files/20210913_26BDD876BBBA5C3A.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16143acbd43ba7---bolototabatunalavaf.pdfIn PDF document text
- https://ayurmitra.com/files/file/99181964484.pdfIn PDF document text
- http://artechq8.com/beta/uploads/files/kutesikawexexoduxiv.pdfIn PDF document text
- http://tidomusica.com/uploads/files/202109051819282862.pdfIn PDF document text
- https://hankilfood.com/upfile/files/1857009064.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161453831d33eb---5767392538.pdfIn PDF document text
- http://cuanhuaabshanquoc.vn/files/10386646449.pdfIn PDF document text
- http://baraanduliaptti.org/userfiles/file/pumivilobewakadukunugod.pdfIn PDF document text
- https://pergamine.com/ckfinder/userfiles/files/73669862783.pdfIn PDF document text
- http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/wizinamugupazegi.pdfIn PDF document text
- http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/zoserojuwe.pdfIn PDF document text
- http://ministryofrum.com/memlogos/file/88038163270.pdfIn PDF document text
- http://yuanda-boiler.com/d/files/sopovezepowojezowasebej.pdfIn PDF document text
- https://euforbiabulgaria.com/uploads/pages/files/3104202957.pdfIn PDF document text
- http://veterina-hrib.cz/user-uploads/files/33296692148.pdfIn PDF document text
- http://rosesrealtyhomes.com/userfiles/files/98275405092.pdfIn PDF document text
- http://brukikostka.pl/uploads/page/file/tipepexoj.pdfIn PDF document text
- https://karlschool.org/uploads/files/202109080032381650.pdfIn PDF document text
- http://fantasymusic.it/userfiles/files/beluxowanifapotumabufej.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3841a97af---zalexebigibeve.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613f447561f2e---nowuwudivev.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/16141291987d82---73130168420.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_off0000caf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAF7 | 10720 bytes |
SHA-256: 44ffd88ac1c0c2e9b004cb9c6ac0fbe5676ae372f14365d4784522031922df12 |
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font_01_sfnt_off0000e3ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fbfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBFE | 16412 bytes |
SHA-256: 411adc0a4e309691b9d9e65748516361a95140c24047f48ef24f8a46749f1e6f |
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