MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting it's designed to trick users into downloading further malicious content. The presence of a 'download button' heuristic further supports this phishing-like lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 8
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://samngaimarble.com/html_upload/file/vexazowilidagere.pdf
- https://discovercefalu.com/_data/images/file/37399554694.pdf
- http://guchenes.com/d/files/25448551624.pdf
- https://alihuata.com/userfiles/file/33825936472.pdf
- http://garage-ys.info/js/upload/files/54544857116.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/1609474496729e---60054248290.pdf
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/b39d608519f0097b29089bf019e066c2/watufepilimifis.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/16088aa6ff14d5---37543772513.pdf
- http://domosplast.hu/files/file/vuzanazaworozumetumojiw.pdf
- http://apluskleaning.com/admin/images/file/3157822279.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f295850c58---lidevefezufowajapimebeno.pdf
- http://nhs1966reunion.com/clients/1/1c/1ca8f1639ee69cd7806809ed3bcda9bb/File/86997102341.pdf
- http://mictrogiang.com/userfiles/files/74166023068.pdf
- https://x-software.cz/data/file/wekevasexupatozoxerole.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/itsoqnau10cg4sk294fggg71sh/31453196174.pdf
- http://thepokeluau.com/uploads/files/zikoxenunu.pdf
- https://www.karelo.com/uploads/File/93304940491.pdf
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/gov27u9g60i4b6d7us3lb74gg2/30895975850.pdf
- http://tcurryproperties.com/konadnew/userfiles/file/12768251450.pdf
- https://nbcmedia.vn/ckfinder/userfiles/files/98642023640.pdf
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/rizezepenewojezeri.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ddb6f62535---25356627873.pdf
- http://xiaohecollege.com/d/files/26321860265.pdf
- http://hnkingdee.cn/Files/file/2021527395.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=the+complete+cyber+security+course+volume+2+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_off0000c2bf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2BF | 16792 bytes |
font_01_sfnt_off0000dad1.bin4575c9baaf8195351d65cb34cb63b66c493cad9af5a1f825bed38aeaf366cf4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAD1 | 16908 bytes |
font_02_sfnt_off00010685.binde19426405ef665bd4e8b93129afd9b0ce437d9a768cb4855e898025d691bb24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10685 | 11120 bytes |
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