MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting, forming a link farm. The presence of embedded JavaScript suggests an attempt to execute malicious code within the PDF viewer, likely to facilitate further compromise or redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://hoanggiaphatland.com/uploads/image/files/57361941274.pdf
- https://grnca.org/img/files/files/posirapugarimajeje.pdf
- https://www.igescanada.com/ckfinder/userfiles/files/1076928414.pdf
- https://anmoul.com/userfiles/file/41490567599.pdf
- http://dailymaydemtien.com/userfiles/files/70839786633.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/06fa7150edf2f76f840fb6769a69b34b/49818198622.pdf
- http://all-pass.com/folder/editor/file/97578814871.pdf
- https://noihoithanhtuan.com/media/ftp/file/korukirefaxuzoluwijegar.pdf
- http://ambvetbrashersclavoghisu.eu/userfiles/files/surer.pdf
- http://airetechservices.com/userfiles/files/xuzafuxozaposesopoxonod.pdf
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/wetoxajoxujuviwavekuvud.pdf
- https://encoregallery.us/wp-content/plugins/super-forms/uploads/php/files/0fa184b533d8c78a5b35b30d86c4db5a/pubinalorav.pdf
- http://metisentry.net/ckfinder/userfiles/files/wejalomarubukigikub.pdf
- http://backyardreleaf.ca/clients/6/6a/6a4eaaf8452764cb6fc14c9064ed0c71/File/42633338593.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cda68a63a8---38511853689.pdf
- http://xingyeknitting.com/userfiles/files/gofuxevigametoxokomikakol.pdf
- http://klubalfa.org/img/userfiles/file/vozufubifugizogakanaduge.pdf
- https://hmanagement.net/userfiles/file/81782194739.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/34c7f3380504f48334f061c6e2e6dff8/96655251845.pdf
- http://xn--krmer-dnnebacke-1kb72b.de/files/file/bananugup.pdf
- http://oroblupiscine.it/userfiles/files/15651019764.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f8f7115afa5---72422197936.pdf
- http://hoinhikhoavn.com/img/files/xexefovorovuwisiv.pdf
- http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/tejumozunurovadimuxijor.pdf
- http://koreaseowon.com/ckupload/files/jewabagobutoloxokabedax.pdf
- http://sgd42.ru/userfiles/file/gojugaxakatoposukivaj.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=forever+and+a+day+james+bond+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c3a0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3A0 | 16792 bytes |
font_01_sfnt_off0000dbb7.bin9489b7f45e6c9952e7f9ad1e6ecf5421056483d7e59bea8e87228f72ed00f573 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBB7 | 10848 bytes |
font_02_sfnt_off0000f484.bin0cde62fd54890041590e4ec95582db329d9efbde2edaf365c37894fa1a60a499 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF484 | 16356 bytes |
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