MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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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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://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/isn5ld6fap93g639ffhdvv8rcu/92387363933.pdf In PDF document text
- http://gustosandvic.com/ckfinder/userfiles/files/dubudadezoromegamabodub.pdfIn PDF document text
- http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/jadik.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/ligexavu.pdfIn PDF document text
- http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/6074159240.pdfIn PDF document text
- https://mytalk7.com/_UploadFile/Images/file/lesitubisiwikikow.pdfIn PDF document text
- https://jjcfurnituremaker.com/userfiles/files/dorasugamanus.pdfIn PDF document text
- http://permanentnimakeup-brno.cz/userfiles/files/tejojuderafakilixivebebum.pdfIn PDF document text
- http://alhouti.com/userfiles/file/bemuzarepopoj.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a817825fa90---97799865159.pdfIn PDF document text
- http://alvitraders.com/files/zukujufibikimuwuvubi.pdfIn PDF document text
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607868d7c5903---47410681433.pdfIn PDF document text
- http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a0598ab9c---kezokug.pdfIn PDF document text
- http://youandisagenix.com/ckfinder/userfiles/files/fekirodisosago.pdfIn PDF document text
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16106d6c999703---wusad.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/694883e263a49d4794a19e719ee986a5/52905832669.pdfIn PDF document text
- http://fairmonteast1975.com/clients/0/01/014dde3c838f86fef2ac1d31a86c415b/File/kokikanubenesukavijorabiz.pdfIn PDF document text
- http://studiomarazzi.eu/userfiles/files/46901346927.pdfIn PDF document text
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/0ib5lcvfkef24kjgpdjfr7ubjg/bawumitibawuxoxof.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b069a7704cf---lelagegin.pdfIn PDF document text
- http://www.asslar.de/downloads/45594007104.pdfIn PDF document text
- https://taechoclub.com/FileData/ckfinder/files/20210610_ADCD70B2DF405E0A.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d992be836fb---nosigotivarolezogi.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609a81240f739---42140189349.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab625ccd775---88663487539.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b38fef365---6459639719.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=canon+pixma+mg2520+installation+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_off0000f27d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF27D | 11096 bytes |
SHA-256: a77d9bbdb77cdc32e4a700d28cbd4ce91883ef5617e4ad69cc97a2168b428f70 |
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font_01_sfnt_off00010c4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C4B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001245d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1245D | 17584 bytes |
SHA-256: 37b8dad691d31c9ded70cf1bfd5f8d7d3d2678d1e48a4d61ddf05d05215d8938 |
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