MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external URLs, many pointing to PDF files on potentially disposable domains, suggests a phishing or malware distribution scheme. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://profession-your-dr.com/uploads/files/202109121126333624.pdf In PDF document text
- http://exteractif.fr/pictures/2/79251307323.pdfIn PDF document text
- https://ikuseikyokai.jp/ckmedia/files/jiwibezofukufuv.pdfIn PDF document text
- https://www.leasing.net.in/ckfinder/userfiles/files/25359523562.pdfIn PDF document text
- https://jamuiboe.com/webroot/upload_media/sabigu.pdfIn PDF document text
- http://myphamnanyno.com/luutru/files/28191123656.pdfIn PDF document text
- http://mitsubishilongbien.vn/images/ckeditor/files/fadubovogibis.pdfIn PDF document text
- http://depcip.com/app/views/panel/ckfinder/userfiles/files/tevipaxivolefebutirijot.pdfIn PDF document text
- http://moscowfashion.net/content/xuploadimages/file/vudiledarebemaboz.pdfIn PDF document text
- http://www.wcd.com.tw/ezadmin/ckfinder/userfiles/files/zodufoposubavu.pdfIn PDF document text
- https://suncables.co/images/file/3672187102.pdfIn PDF document text
- http://35ct1.com/images/ckImageFiles/files/32069485157.pdfIn PDF document text
- http://otworz-biuro-podrozy.pl/userfiles/file/42135955981.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/4bj3c3ip8krkclq3vojsnb77oi/gixuwebudataxifugirus.pdfIn PDF document text
- http://goozzl.com/userfiles/files/kujosufugapunu.pdfIn PDF document text
- http://chistogood.ru/admin/ckfinder/userfiles/files/wodagavesefisegunaxanizev.pdfIn PDF document text
- http://xiangzhuan.tw/upload/files/12247035157.pdfIn PDF document text
- https://wonkingchina.com/d/files/lexirulivafevarufesoxomon.pdfIn PDF document text
- http://easyhypermarket.com/userfiles/file/17602903314.pdfIn PDF document text
- http://factory-01.com/js/upload/files/90381459006.pdfIn PDF document text
- https://globalathena.com/ckfinder/userfiles/files/54953467135.pdfIn PDF document text
- http://goldia.cz/data/file/xefezogipasotuvazo.pdfIn PDF document text
- http://eschool365.in/js/admin/uploadfiles/file/wuzof.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143d4e084c65---54779717302.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=big+city+life+simulator+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_off0000e6d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6D7 | 11172 bytes |
SHA-256: 4c0c66ec847bb8b4cf37a722790e52a5e4ab0b54a83dc5f7aba36fcabca7e9e5 |
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font_01_sfnt_off000100e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100E1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000118f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F3 | 17348 bytes |
SHA-256: 29d7efcf098010f5c62bdaef6c38250ebc5e1d14e213184107d24b1dcddc777a |
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