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 0.9949
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://archism.ru/uplcv?utm_term=applied+optimization+with+matlab+programming+2nd+edition+pdf+download PDF link annotation
- http://rayhovietnam.vn/upload/files/nonifuxewutotulaxadewij.pdfIn PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/2b698d18d8a75d695607d9a137d16778/patubetowemefifije.pdfIn PDF document text
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb6b0fc0668---dafiwe.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4c96e0c1b---vuxunumepa.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/4ee1622202880b44b85044483b65f428/99667882578.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b4077fb3cdb---81925325721.pdfIn PDF document text
- http://mamtomchabahai.com/uploads/files/files/5837279317.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/okbilds7ckf11moj4c45q245dh/rakifuzoxevulolozetukid.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610e8a9b5a406---pugapivuwegowuduxofenu.pdfIn PDF document text
- https://jocafoto.com/fotos/file/tulapiwapufenimibebizilir.pdfIn PDF document text
- http://originalcheck.it/public/img_admin/file///4780045876.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/47f4e52b7542262e0821925e85afe9d8/variruvap.pdfIn PDF document text
- http://af.ssla.ru/images/fornews/files/56249075855.pdfIn PDF document text
- http://eminenceinc.com/userfiles/file/14994786409.pdfIn PDF document text
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/j1cuscoucij281b53praqo7ov5/woluzaxozider.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/c7f11c77f7c4d6698126454dba7443ac/81909855165.pdfIn PDF document text
- http://3bbb.fr/ckeditor/upload/files/43691120495.pdfIn PDF document text
- https://mytekas.com/UserFiles/file/goperisudoworoti.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/e2ade0a66c8ba99bc96158a38c7945e1/tedowojibojoviwel.pdfIn PDF document text
- https://mysmartedu.com/uploadimages/files/11136278428.pdfIn PDF document text
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1da827d654---maxaxid.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a129ed232---dufurexe.pdfIn PDF document text
- https://clubslotalmatriche.com/calcas/file/27041319120.pdfIn PDF document text
- https://karlschool.org/uploads/files/202108280845513311.pdfIn PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/6afcc1f92899b94c4a28c69410f40544/96254861736.pdfIn PDF document text
- 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_off0000ce24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE24 | 17512 bytes |
SHA-256: 9ae2930338da266298c31358e2edd2b892aec516788806847cc63ed164ade51c |
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font_01_sfnt_off0000fa7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA7F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011296.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11296 | 11164 bytes |
SHA-256: 329d0123ae3cd3a30c0761da945dbb5d0a2a66e38dfa938f06041831dd940593 |
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