MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to suspicious domains and are likely part of a link farm. The presence of a 'download button' heuristic further suggests a malicious workflow aimed at tricking the user into downloading a payload. ClamAV detection and ML classification strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://tieulongcopro.com/luutru/files/gidililezuzisazitomemep.pdf In PDF document text
- http://utcsp.rustyramone.com/uploads/files/fepunozulewili.pdfIn PDF document text
- http://timnhanhonline.vn/upload/files/17464004322.pdfIn PDF document text
- http://modernplating.com/userfiles/file/23150200313.pdfIn PDF document text
- http://linhkienhunganh.vn/luutru/files/muriwomazapomoxixunaxo.pdfIn PDF document text
- http://studioguagnoni.it/userfiles/files/nufamubipat.pdfIn PDF document text
- http://volvo-cars.jp/js/upload/files/56776674299.pdfIn PDF document text
- http://intertribo.sk/files/77436752531.pdfIn PDF document text
- http://balcimimarlik.com/resimler/files/jomosolilas.pdfIn PDF document text
- http://vinhthuanvietnam.com/upload/files/rozefexekadibanabawe.pdfIn PDF document text
- https://tims.ro/ckfinder/userfiles/files/79820029944.pdfIn PDF document text
- http://bekescsaba.varosom.hu/userfiles/files/25879449012.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/getigadonuzimibewe.pdfIn PDF document text
- https://lazerom.pro/media/file/92439916484.pdfIn PDF document text
- http://alrabbancapital.com/file/files/kuwas.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309330ee18e---kamevasarexafiwotujajo.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139c69a3a431---73379683725.pdfIn PDF document text
- https://joebalogh.ro/imagini_ws/faliximigili.pdfIn PDF document text
- http://pushgroup.lv/userfiles/files/74391455583.pdfIn PDF document text
- http://numismatika-nbkpdy.cz/userfiles/file/83263303470.pdfIn PDF document text
- http://zdravi-kromeriz.cz/files/file/gajurapalipapasegigani.pdfIn PDF document text
- https://tenshinorchids.com/FCKeditor_upload/file/88906350752.pdfIn PDF document text
- http://grabnerestriche.at/guwaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=tubemate+video+mp3+converterPDF 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_off0000d688.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD688 | 10904 bytes |
SHA-256: 84edf020f984c3b6320c294accf599da4ee42d9f2f73c1bec0c336670e84896f |
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font_01_sfnt_off0000ef89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF89 | 16820 bytes |
SHA-256: 90f8e1d601268696faeed5cce662a911495615e218287bd54e72a2c8aaea7563 |
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font_02_sfnt_off00011af8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AF8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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