MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links to external websites, many of which appear to be compromised WordPress installations or disposable hosting, suggesting a link farm or redirection mechanism. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security and deliver malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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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://huntic.ru/uplcv?utm_term=sumas+de+3+digitos+para+ni%C3%B1os
- https://marcuspietrek.de/MARCUS/files/file/fololisitibul.pdf
- http://xn--80akazwaeiw.xn--p1ai/editorfiles/file/78335043433.pdf
- http://www.tramag.pl/upload/file/49167006721.pdf
- http://phrabat.net/UserFiles/File/bemaxitituke.pdf
- http://aarogyamedico.com/userfiles/file/4559204912.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/0d18f0a5d1453149a2ad3bd287678768/vevotabat.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/95eadb2f6fda8866a8623115ae509f8f/vofuropofojirafezufit.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16097c48f1ee8b---48904536267.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bc1c0923f14---68637048496.pdf
- http://prosquash.by/data/morabuladuv.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1db29fb98---pomadikokeb.pdf
- http://modamoda.nl/uploads/pic_lib/file/11141455708.pdf
- http://www.amanuttarakhand.org/ckfinder/userfiles/files/73590911581.pdf
- https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/67072992662.pdf
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/d8bb687305f1458c14cf5f9d8b28c150/62545917986.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c8db61f25f9---89305605828.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e188680a914---lenamuworizifixatabulokag.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/95fd1bb5e9b4f8a86f172467f2e6c0d5/vamidulig.pdf
- http://poltinik.ru/userfiles/file/89229129539.pdf
- http://tdvvietnam.vn/webroot/img/files/jululafifikorida.pdf
- https://visionbrindes.com/admin/fckeditor/userfiles/file/47191347763.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c339d5a191c---rojolodakubeboginoza.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a7b369a6e8910ae5413fb5541a589868/kimaxabogusugejomizowofav.pdf
- http://terminsk.by/pics/files/66547956263.pdf
- https://hosvagyok.hu/userfiles/file/vonejajijejiw.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_off0000fcfa.binbd350656cebbd4bcb11ae13c322b867ba319250077570e0ad5331e165ee1ee44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCFA | 11244 bytes |
font_01_sfnt_off000116d9.binefc68419619d3fe7874a44584dfc16afe49a39cfae20c9f1a22280b3bc745d53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116D9 | 18844 bytes |
font_02_sfnt_off000147f2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147F2 | 16792 bytes |
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