MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for malicious PDFs. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a large number of external links hosted on disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://ketchas.ru/uplcv?utm_term=miui+12+for+mi+8+pro PDF link annotation
- https://lorus.rs/files/javirijilozanogijir.pdfIn PDF document text
- https://emotionalgift.com/ckfinder/userfiles/files/80879132185.pdfIn PDF document text
- http://moveworldtogether.com/datas/files/82272880961.pdfIn PDF document text
- http://mobiliteit.nu/files/31776460194.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/f014c441228d7061f3fd718b9c3800ae/bukiviwusisawu.pdfIn PDF document text
- http://balaton.varosom.hu/userfiles/files/gobaladunujarijinidotak.pdfIn PDF document text
- http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sixaxadamirafatepiro.pdfIn PDF document text
- http://3dprofi.net/images/uploads/file/xoweburusuwelurenugedez.pdfIn PDF document text
- http://allineers.netlovestories.com/upload/files/wokizazo.pdfIn PDF document text
- https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/lawalugotakurunaderilade.pdfIn PDF document text
- http://xn--oy2b19v1mb1yi.com/userfiles/file/34183156048.pdfIn PDF document text
- http://tecniagua.es/uploads/ckfinder/files/25476871077.pdfIn PDF document text
- http://techcessgroups.com/userfiles/file/35253878562.pdfIn PDF document text
- http://firmen-bekleidung.at/userfiles/file/19026395682.pdfIn PDF document text
- http://streathamtaxi.com/survey/userfiles/files/daromitokikopaxezukajof.pdfIn PDF document text
- http://bakoca.hu/files/file/56489234686.pdfIn PDF document text
- http://serextion2006.com/js/upload/files/dobikufagel.pdfIn PDF document text
- https://srldirect.com/ckfinder/userfiles/files/51328971217.pdfIn PDF document text
- http://dlevitin.ru/fck_editor_files/files/54641491524.pdfIn PDF document text
- https://dalycity.com/wysiwygfiles/file/kafidibatolurise.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/2e8c493c61340133493d160422b1df7c/kereredidufafigezorixaze.pdfIn PDF document text
- http://thaicockstar.com/ckfinder/userfiles/files/rulekaripezokikixajir.pdfIn PDF document text
- https://tonerihned.cz/userfiles/file/60666559866.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_off0000d290.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD290 | 18364 bytes |
SHA-256: 26210a217087b6669f4dff68a830473555d04defab732f14922273759dea2ce8 |
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font_01_sfnt_off00010250.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10250 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011a67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A67 | 10280 bytes |
SHA-256: d286ebca9f98b33e0380279e131d1e7b69157095e73b6c2592a85df974ec6523 |
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