MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, with heuristics indicating it is a link farm pointing to compromised WordPress uploads and disposable hosting. The embedded JavaScript stream, while not directly analyzed for malicious intent, is a common vector for further exploitation in PDF documents. The numerous URLs suggest a campaign to lure users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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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 https://philabc.ru/uplcv?utm_term=all+phrasal+verbs+in+english+pdf
- http://flagrant-desir.com/userfiles/file/340206587.pdf
- http://wmasgroup.com/userfiles/file/86287456362.pdf
- http://p-itos.net/admin/userfile/image/file/netodapewuxosupibuwel.pdf
- https://radiosmile.hu/upload/file/gadozuvekiwarefofi.pdf
- http://sevennews.com.br/ckfinder/userfiles/files/24715788732.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/161404a2659885---37008213485.pdf
- http://aedjtjdshbf.pretty-match.com/upload/files/mufotoganezulozemedet.pdf
- https://myparrotfood.com/user_files/files/wegojuxil.pdf
- https://aznamaste.com/ckfinder/userfiles/files/dujimuwefoduv.pdf
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/ff00e7b95fe880a6ff502a6182e4130e/91274877879.pdf
- http://canvangdientu.com/images/file/18909184275.pdf
- http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/devazaxujesofuwixeje.pdf
- http://micruts.org/userfiles/file/katol.pdf
- http://familiegravesen.dk/ckfinder/userfiles/files/jezonurefepemixodogaxexol.pdf
- http://educasters.co/ckfinder/userfiles/files/zovosafa.pdf
- http://swaving-stalinrichting.nl/ckfinder/userfiles/files/69558543654.pdf
- http://xn--lv0az70cxar.tw/uploads/files/202109050256173661.pdf
- http://onsijsselstein.nl/userfiles/files/7951252425.pdf
- http://chieusangducphat.com/uploads/userfiles/file/togebi.pdf
- http://louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/20135731274.pdf
- https://csam-villepinte.org/uploads/images/file/25216708536.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/1739fe7aece67f5aba7a0de28b6b005f/pekonoremuxotimaxim.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613946eb2a6e8---43541980496.pdf
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/tujavawoxumasusorovosikev.pdf
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6bd0a24ce---wefozewamo.pdf
- http://dataprint.ie/uploads/file/88668507775.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_off0000d7e1.bineab512225199abfea27321e6d94ac74127ab23f6865f99b874595ebe40a45997 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E1 | 10744 bytes |
font_01_sfnt_off0000f01d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF01D | 16792 bytes |
font_02_sfnt_off0001082f.bina6a8de6b9431cec6edf16f06e06a0d036bf11eea73b0f842c138d7afdf854d3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1082F | 18268 bytes |
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