MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. The PDF also hosts numerous external URIs, many of which are part of link farms on disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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://laborke.ru/uplcv?utm_term=the+secret+novel+pdf PDF link annotation
- https://redfortfireworks.com/ckfinder/userfiles/files/zimojositobowifamatok.pdfIn PDF document text
- https://kenhquangcao.vn/uploads/files/ninoserokixavifudober.pdfIn PDF document text
- https://hw-power.com/uploads/ckfiles/files/614eb3020746c.pdfIn PDF document text
- https://propertiproperty.com/Uploads/userfiles/files/sozabokapasoru.pdfIn PDF document text
- https://rpaxis.net/userfiles/file/2347078577.pdfIn PDF document text
- https://pacie.vn/web/uploads/files/60141855612.pdfIn PDF document text
- http://technoauto.jp/js/upload/files/visinavo.pdfIn PDF document text
- http://chrisdepanneservices.fr/Sites/cds/files/77433968339.pdfIn PDF document text
- http://tmkb.org.tr/ckfinder/userfiles/files/69931352344.pdfIn PDF document text
- http://maybomnuocdanang.com/uploads/image/files/13552838030.pdfIn PDF document text
- http://kaies.net/upfiles/file/29912848966.pdfIn PDF document text
- https://digireg.com/upload/dopivabibizuketutofimebir.pdfIn PDF document text
- http://em-mould.com/ckfinder/userfiles/files/63552803260.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/161496c02569b4---deronuguti.pdfIn PDF document text
- https://marmetal.cevhertemizlik.com/userfiles/files/vofamaxipoxibilu.pdfIn PDF document text
- https://tahubunting1.com/contents/files/zamebodizakok.pdfIn PDF document text
- http://budka39.ru/files/84246350230.pdfIn PDF document text
- http://beauty214.com/uploads/files/202109132307204167.pdfIn PDF document text
- https://laatjehuisweerstralen.nl/upload/file/94858678976.pdfIn PDF document text
- http://nenkin-t.com/upload_img/ck/files/fafedimuzaniza.pdfIn PDF document text
- http://eternaseguros.net/files/files/37817910498.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/161431910a3e96---71393422458.pdfIn PDF document text
- http://yesilderecine.com/admin/editor_resim/file/97944278470.pdfIn PDF document text
- https://xn--dokumaanahtarlk-llc.net/userfiles/file/pagifasi.pdfIn PDF document text
- https://www.dogandemir.av.tr/paketler/ckfinder/dosyalar/files/ninipujoxiziwesarow.pdfIn PDF document text
- http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/zafezotefibixuxaxopatax.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_off0000b187.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB187 | 15900 bytes |
SHA-256: 594ecf118a4da97c0cdcb18e863ccfbd0f5775224c30b44d6465cab4c2470299 |
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font_01_sfnt_off0000da19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA19 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f230.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF230 | 10492 bytes |
SHA-256: 20131359512ceeed76fb5215c83e1bd9036f2db2025ee2cef47e50fd7662c544 |
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