MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to a link farm hosted on disposable domains. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to manipulate search engine results or distribute content through a large number of small, distinct links. The embedded JavaScript likely facilitates the redirection to these external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://cn-junsheng.com/upload/file///202191715818716.pdf In PDF document text
- http://ekorepetycje.eu/Upload/file/23524864236.pdfIn PDF document text
- http://1544-7419.net/upload/fckeditor/file/movejelisojak.pdfIn PDF document text
- http://kapelski.pl/userfiles/file/bakorumivapa.pdfIn PDF document text
- http://naviway.su/upload/files/mapodanafetujozowazut.pdfIn PDF document text
- http://architettosbaffo.com/userfiles/files/11318485154.pdfIn PDF document text
- http://www.jacenter.org/js/ckfinder/userfiles/files/kuvirifunow.pdfIn PDF document text
- http://tajesink.com/Uploadfiles/files/14555011245.pdfIn PDF document text
- https://basundharamart.com/userfiles/file/nejevojurixikiwapuk.pdfIn PDF document text
- http://metalltechnik-kutschi.at/12175480318.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/aa751676924a93ea88dbb477d28c5852/piviji.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/34456724659.pdfIn PDF document text
- http://adgroup.co/userfiles/file/10715786381.pdfIn PDF document text
- http://sanarina-coaching.de/ckfinder/userfiles/files/womirevepivudevejufasi.pdfIn PDF document text
- https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/3274444345.pdfIn PDF document text
- http://tprcindia.com/ckeditor/ckfinder/userfiles/files/71257748779.pdfIn PDF document text
- https://ev-owners.jp/userfiles/files/wudigosevevu.pdfIn PDF document text
- https://huaku3c.tw/uploads/files/202109082045403374.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/724251225.pdfIn PDF document text
- https://ontogepszerviz.hu/editor_up/3449580709.pdfIn PDF document text
- http://szamosiszerviz.hu/feltoltott/files/63158056423.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136cbe52cd31---serimewunu.pdfIn PDF document text
- http://pactolous.hu/upload/file/53141954092.pdfIn PDF document text
- http://vandervalk.reviews/app/webroot/files/userfiles/files/kunufibatilepozezopumipu.pdfIn PDF document text
- https://galerie-louise.be/userfiles/files/fojotujalitiseboz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=wonder+woman+1984+online+free+123moviesPDF 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_off0000b339.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB339 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB4B | 16144 bytes |
SHA-256: 07488b41ab219ae2c349e64df7497a0f8753315ffb5e9e4397b2eb5ed7de70ef |
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font_02_sfnt_off0000f3fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FA | 11360 bytes |
SHA-256: 93d80b662740d5e7e4802bdf301a4a6a58b8649e8dd5623868a435234d499a2a |
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