MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs that point to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to facilitate phishing or malware distribution, likely initiated via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9896
Heuristics 6
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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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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://pixomot.ru/uplcv?utm_term=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%83%D1%87%D0%B5%D0%B1%D0%BD%D0%B8%D0%BA+%D1%80%D0%BE%D0%B1%D1%83%D1%81%D1%82%D0%BE%D0%B2%D0%B0+%D1%85%D0%B8%D1%80%D1%83%D1%80%D0%B3%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F+%D1%81%D1%82%D0%BE%D0%BC%D0%B0%D1%82%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F+pdf
- https://cjsc.se/ckfinder/userfiles/files/15129581747.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160f9b780ca9fb---64433512429.pdf
- http://skpizzasubs.com/uploads/files/27327787363.pdf
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/e3c95b05ebc38e179eafcea3bfe82174/nasupulus.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/c73bc55da918ad95a113aec2580f4ebd/tuvazivifuxuguxexuke.pdf
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b9834299e96---zorubipo.pdf
- http://royalgoodviewresort.com/Uploads/file/61314461910.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/8cb8280d37baf860e60f90d4fff8a741/21511885410.pdf
- https://wietsevoermans.nl/ckfinder/userfiles/files/bikusamisujisafiselowener.pdf
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd325ea692---15407099673.pdf
- https://n-zvuk.ru/upload/file/92080259964.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6e7534c01---jafuzifesazobaj.pdf
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/cab829b34928737e5290ff7c3799d3c2/wividokapemepetizuka.pdf
- https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/8d36cfa5a709580a4c256c529c4212d0/96556764216.pdf
- https://taechoclub.com/FileData/ckfinder/files/20210620_CB1F33EC2183ABBC.pdf
- https://wotfiles.com/ckfinder/userfiles/files/1938341758.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160843ecd8c709---48908313188.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7ad1b01a0---27508837693.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16091554556029---jarobena.pdf
- https://lawina-radom.pl/files/file/39931946362.pdf
- https://sonntag-immobilien.lu/userfiles/files/boruvazumumodovoto.pdf
- http://onlineticketreview.com/images/file/41256248880.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160f87b6a166d8---dazutepazuderemajetof.pdf
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/midejowafojivurivolin.pdf
- http://burelomdo.com/ckfinder/userfiles/files/21163254207.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd93a4cc4f---8800094612.pdf
- http://libertyquad72.fr/userfiles/file/12620023933.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_off0000f190.bin6cce8e63d379a88f0e4bad0705ecb97d70b9d9d2febb88172643f6988ba84f7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF190 | 11624 bytes |
font_01_sfnt_off00010ca7.binb99f5e16aa528537c30607a16000a072396fa9065001e270314becaf187494d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA7 | 21444 bytes |
font_02_sfnt_off000142d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142D0 | 16792 bytes |
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