MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1539 Steal Application Access Token
The sample is a PDF document flagged by multiple heuristics, including ML classification and ClamAV, as malicious. The 'SE_MFA_LURE' heuristic indicates the document's content is designed to trick users into providing sensitive authentication information, such as one-time codes or MFA approvals. This strongly suggests a credential harvesting or session hijacking attack. No scripts were extracted, and the document body was unreadable, but the presence of numerous external links, many pointing to PDF files on potentially disposable domains, supports the phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://k3projekt.pl/uploads/userfiles/files/67560656159.pdf In PDF document text
- http://escritacontabilidade.net/fotos/news/file/pogorusumokujodezinebiv.pdfIn PDF document text
- http://gaytonfa.com/upload/files/vuvufujidejukute.pdfIn PDF document text
- https://kingcarmotorista.net/uploads/files/perurexevip.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/8423983290.pdfIn PDF document text
- https://clic-essc.ch/ck/ckfinder/userfiles/files/1985224183.pdfIn PDF document text
- https://hotellemaritime.com/hotel/upload/files/fokifenipatad.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1613c96d0a5b95---39069433807.pdfIn PDF document text
- http://reclameindex.nl/images/uploads/rewap.pdfIn PDF document text
- https://bio86.net/userfiles/fichiers/jevexemebal.pdfIn PDF document text
- https://muzeumkonstancina.pl/attachments/file/diwusapupasul.pdfIn PDF document text
- http://be-now.pl/userfiles/file/73086297820.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/nizavututamilozinotetis.pdfIn PDF document text
- http://salocchi.it/userfiles/files/nenobaraxanowakotew.pdfIn PDF document text
- http://abwplazaview.com/uploads/files/95344853700.pdfIn PDF document text
- http://liyangah.com/Upload/file/79635044818.pdfIn PDF document text
- http://www.satunatc.ac.th/ckfinder/userfiles/files/vosire.pdfIn PDF document text
- https://keralatemples.info/ckfinder/userfiles/files/pulane.pdfIn PDF document text
- http://szwygs.com/upload/25932319848.pdfIn PDF document text
- http://koreaticketland.com/userfile/file/rudozige.pdfIn PDF document text
- http://resheto.ru/users_images/fck/file/difolonajuj.pdfIn PDF document text
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/161460becc0d0a---vodavolojakutetanafodufux.pdfIn PDF document text
- https://299-45.com/CKEdit/upload/files/76921327700.pdfIn PDF document text
- http://93564497.com/userfiles/jugedovinemidebazanif.pdfIn PDF document text
- https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/jixabi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=is+apple+or+android+more+popularPDF 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_off0000e315.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE315 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB2C | 10504 bytes |
SHA-256: 7b4a94eb00a7c10ab7295e0fe0b9025c1577682d4b6c71e5c8eace2589f40242 |
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font_02_sfnt_off000112f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112F8 | 17200 bytes |
SHA-256: 4704602ce86c0ac3d9c2a3332eccc8a96047d079f181afc31bd0455ad1f27d01 |
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