MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to download and execute a secondary payload. The presence of a visual download button lure further supports a malicious intent, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://xedulichhaiphong.vn/images/news/files/numerizewuladatom.pdf In PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151feb70b726---26539322575.pdfIn PDF document text
- http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/vabugadifagug.pdfIn PDF document text
- http://cngwalk.com/fckeditor/userfiles/image/vomezujalipupuxoso.pdfIn PDF document text
- http://fijiembajak.com/uploads/ck_uploads/files/nebowo.pdfIn PDF document text
- https://fishboat.hr/files/94869021849.pdfIn PDF document text
- http://designklasse.de/ckfinder/userfiles/files/12363312051.pdfIn PDF document text
- http://hoangminhsaigon.vn/@dmin/js/ckfinder/userfiles/files/rofodozad.pdfIn PDF document text
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1615c0c2b36d97---37571414854.pdfIn PDF document text
- http://vagtteam.com/userfiles/Files/16196790917.pdfIn PDF document text
- http://cafesezony.ru/fck_editor_files/files/42732830084.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/jikixovet.pdfIn PDF document text
- http://hondatayho.top/img-ngocbao/files/wopukijopudupuxuniloro.pdfIn PDF document text
- http://tuecpa.com/file_media/file_image/file/44958910525.pdfIn PDF document text
- https://hotelmitrutarija.com/uploaded/files/31105166746.pdfIn PDF document text
- http://capri.lt/userfiles/files/69318945131.pdfIn PDF document text
- http://aibrpjoaae2.specialty-match.com/upload/files/2206472043.pdfIn PDF document text
- http://www.sctiec.com/up_files/FCK/file/ripejikevofo.pdfIn PDF document text
- http://schokoladenbrunnen.de/idata/59994924199.pdfIn PDF document text
- http://audidalys.lt/ckfinder/userfiles/files/pozesovaworoxev.pdfIn PDF document text
- https://goodnest.info/tctt/sites/aaa/file/11020111628.pdfIn PDF document text
- http://papinchess.ru/userfiles/file/61938701073.pdfIn PDF document text
- http://bhk-aindling.de/userfiles/files/befipan.pdfIn PDF document text
- http://studioambienteterritorio.it/userfiles/files/35023768117.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=anandam+malayalam+movie+tamil+dubbed+downloadPDF 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_off0000c540.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC540 | 17656 bytes |
SHA-256: 63912ce22baf786f5885b48641df2c62e6d8fc63b35af1845ced5ed55aa1fc9e |
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font_01_sfnt_off0000f26a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF26A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A81 | 10628 bytes |
SHA-256: 639dc9928c815452401d4d4c6fd8e07d769c46812367132dfaab0c18f4052713 |
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