MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://coretry.ru/uplcv?utm_term=how+long+can+i+keep+cooked+chicken+in+the+freezer PDF link annotation
- https://totalsewa.com/userfiles/file/xeveko.pdfIn PDF document text
- http://ivankrivanek.com/userfiles/file/vajifefipi.pdfIn PDF document text
- http://profesniprukaz.cz/ckfinder/userfiles/files/99063728485.pdfIn PDF document text
- http://cauthangdep24h.com/upload/files/40404209213.pdfIn PDF document text
- http://ned.ru/uploads/files/rekini.pdfIn PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/3814e9a613f579b9b34362af71b8f850/tojajugosegugulelurovoda.pdfIn PDF document text
- https://ooo-kenk.ru/userfiles/file/53872523714.pdfIn PDF document text
- http://xn--vb0b83rba554gca.kr/page_data/file/20210909051533.pdfIn PDF document text
- https://gemicilojistik.com/userfiles/upload/file/futanivusituk.pdfIn PDF document text
- http://jessie.vn/images/ckeditor/files/43469257298.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161383ada29e1b---zavepanujikavenomudulene.pdfIn PDF document text
- http://loadcell.vn/Images_upload/files/ranipug.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae77492403---33029115417.pdfIn PDF document text
- http://wwpokebar.com/uploads/files/xamawologomudaroniped.pdfIn PDF document text
- https://vietnamairlinescorp.org/js/ckfinder/userfiles/files/80716412867.pdfIn PDF document text
- http://costruzionibulagna.it/userfiles/files/20518891486.pdfIn PDF document text
- http://porpora.info/imagenes/imagenes_contenidos///61327124781.pdfIn PDF document text
- http://oio.cn/uploadfiles/files/76861828710.pdfIn PDF document text
- http://abogadosaguilar.com/ckfinder/userfiles/files/68648589190.pdfIn PDF document text
- http://medi-sen.com/files/files/62716527820.pdfIn PDF document text
- https://mediaget.ru/userfiles/files/lipukuwewejodikera.pdfIn PDF document text
- https://siahotel.com/userfiles/files/nepefevalakaxul.pdfIn PDF document text
- http://mimarkamilozkartal.com/userfiles/files/1656132280.pdfIn PDF document text
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/91583287846.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_off0000db0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB0D | 17332 bytes |
SHA-256: ce021159baa6a2f691cf82b91126d00d4a1c940e5afad62cdbff196c2d8fabd1 |
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font_01_sfnt_off000107e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107E5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ffc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FFC | 10960 bytes |
SHA-256: 0c73904986fbb2e2b75f573339dbfe1eb12c9b2e283c4f24cb41cfd770a726a2 |
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