MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and a large number of external URLs, including one pointing to a potential phishing lure related to Instagram, suggests the document is designed to trick users into downloading further malicious content or visiting phishing sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the idea that the document is part of a campaign to distribute malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://medvor.ru/uplcv?utm_term=how+to+see+private+instagram+tool PDF link annotation
- https://paperland.bg/uploads/file/62351224085.pdfIn PDF document text
- http://envisystem.com/upload/userfile/files/20017543994.pdfIn PDF document text
- https://inverpalmas.com/aym_image/files/jotepegigudemezasiniwof.pdfIn PDF document text
- https://honghow.com/ckfinder/userfiles/files/bamekelox.pdfIn PDF document text
- http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/sazagobogu.pdfIn PDF document text
- http://digivideos.net/ckfinder/userfiles/files/pizavofeborur.pdfIn PDF document text
- http://rkmaster.ru/uploads/files/98739544391.pdfIn PDF document text
- http://zdravi-kromeriz.cz/files/file/jekajuwoxuz.pdfIn PDF document text
- http://bastola.org/userfiles/file/22927607183.pdfIn PDF document text
- http://robwalker.net/fckupload/file/55907753.pdfIn PDF document text
- https://www.rapn.ru/ckfinder/userfiles/files/87462510810.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16142179bc3b68---nufunagobivulolufitobapop.pdfIn PDF document text
- https://kimcert.org/E/file/fakasikowoguta.pdfIn PDF document text
- https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/64273986551.pdfIn PDF document text
- https://ezsprinting.com/userfiles/file/xutavafa.pdfIn PDF document text
- http://ckattorneys.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kerumolijivusesif.pdfIn PDF document text
- https://tdemo.order-pro.com/ckfinder/userfiles/files/41094748941.pdfIn PDF document text
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16135515943ee4---74543284843.pdfIn PDF document text
- https://weeb.nu/userfiles/file/xebokugituranitinozojik.pdfIn PDF document text
- http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/98393681968.pdfIn PDF document text
- http://fcraregistration.com/UploadedData/file/50809717957.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_off0000dd8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD8C | 17368 bytes |
SHA-256: 03f9700fe1a25bc567cd2556ef05ac485fcf9ce8dd644a8ba2364bb4d2af9371 |
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font_01_sfnt_off00010a2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A2F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012246.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12246 | 10736 bytes |
SHA-256: d2731cbcef96af78f5e7d9d784cafbfaee9b2384bac78c322a70841a467f5ad2 |
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