MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users. The presence of numerous external URIs, many pointing to link farms on disposable hosting, strongly suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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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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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://vietnamairlinescorp.org/js/ckfinder/userfiles/files/leguwijejozodulorefe.pdf In PDF document text
- http://coreaad.com/DreamDataUpload/file/38903033982.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614054cfac2f3---kanoraxobimidoxa.pdfIn PDF document text
- http://geodavidepini.it/userfiles/files/pidonebufiz.pdfIn PDF document text
- https://soccerauquebec.com/userfiles/file/nutivomexunaniluguz.pdfIn PDF document text
- http://fiorenzuolatrack.it/userfiles/files/xiduzowigabajek.pdfIn PDF document text
- http://ahlhy.com/uploads/file/131132297437.pdfIn PDF document text
- http://werkkledingverkoop.nl/images/docman/files/powut.pdfIn PDF document text
- http://pension-erlkoenig.de/img/editor/file/43423343390.pdfIn PDF document text
- http://corising.info/sa_upload/userfiles/file/20210908234748.pdfIn PDF document text
- http://pogologistics.com/ckfinder/userfiles/files/37091059689.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/a25f580d2f4c47c5b66d198115e4e1bc/73794384570.pdfIn PDF document text
- http://ros-grad.ru/fck_editor_files/files/99230745589.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/96821625375.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/gigulomumiwafajas.pdfIn PDF document text
- http://sintjorisparochie.nl/userfiles/file/49033903382.pdfIn PDF document text
- http://globalsocialwlefaresummit.com/app/webroot/uploads/ckuploads/files/ritage.pdfIn PDF document text
- https://yunglin.com/uploadpic/files/mozonalese.pdfIn PDF document text
- http://www.yemany.com/yemfiles/files/97320412800.pdfIn PDF document text
- https://tdemo.order-pro.com/ckfinder/userfiles/files/gefajiwamojigiriralupapo.pdfIn PDF document text
- https://mapithanhcong.com/upload/ck/files/kanalafu.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/5663489753.pdfIn PDF document text
- http://madmojo.com/fckupload/file/zitosonurelugijudaxiri.pdfIn PDF document text
- http://pospatrans.cz/UserFiles/File/91555310609.pdfIn PDF document text
- https://jotelek.hu/files/file/kipuzizolulabevunufip.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=driver+detector+freePDF 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_off0000d14f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD14F | 17160 bytes |
SHA-256: c50641695534120fb5bb0f54579524617f43cf7fe82552855d7a23f2b4bac1c0 |
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font_01_sfnt_off0000fdcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDCC | 10056 bytes |
SHA-256: 3d05fb2093424f697d3259255ec588f4a9ea8d9f72cdcbcae09e5cc8683867f7 |
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font_02_sfnt_off0001144a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1144A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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