MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick the user into installing a fake browser update or extension. While no scripts were directly extracted, the presence of numerous links to potentially compromised or disposable hosting sites, coupled with the lure, points towards a phishing or malware distribution scheme. The document's structure and embedded links are consistent with a phishing attack aiming to compromise user credentials or deliver a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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 http://dulichtantai.com/files/uploaded/files/gujelekitetulobupatifosa.pdf
- http://tensoinox.com/userfiles/files/kidomesowodidinokus.pdf
- http://gocreate.termall.pl/upload/fck/file/5901874772.pdf
- http://konyanincigkoftecisi.com/userfiles/file/47433589021.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/74f07b337a8f7d707dd9f5c7aefee725/36688771489.pdf
- http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/xawikus.pdf
- http://rungruangsteel.com/public/upload/userfiles/files/87760604084.pdf
- https://fotobolfestmeny.hu/mvc/userfiles/file/66356279331.pdf
- https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/99227460247.pdf
- https://budgetparking.ca/admin/uploads/file/kulosi.pdf
- https://munis-roquesalbes.cat/demo/vilalba/imatges/file/62928233602.pdf
- http://lixupeng.com/uploads/files/wujemodijabamimagodanofo.pdf
- http://musicincw.com/fckeditor/userfiles/image/pinunupew.pdf
- https://xn--b8qxb801j.tw/upload/files/59058034796.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/64714dc9f249ba7d269197e3c3e4393d/81586165706.pdf
- https://protraderin.com/userfiles/file/rodonubogokujonalejenobum.pdf
- http://milwaukee.center/userfiles/file/modenamadobineravazaw.pdf
- https://pikhospital.com/ck_uploads/uploads/files/37275445782.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfaca0cc16---2738120661.pdf
- https://medarbindia.org/ckfinder/userfiles/files/30379805311.pdf
- https://skl.deindrukdemo.nl/upload/files/zafaf.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613081ba74739---22478848949.pdf
- http://tygodnikzuzlowy.pl/ckfinder/userfiles/files/81275339781.pdf
- http://lepetitjaunais.com/userfiles/file/musawo.pdf
- http://zensushidanapoint.com/uploads/files/72942776379.pdf
- http://turhantur.com/turhantur/files/28241891705.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=mr+wrong+episode+6+english+subtitles+full+episode
- 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_off0000f691.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF691 | 16792 bytes |
font_01_sfnt_off00010ea8.bin924e7386157d102256491f5e984b9f67434b5c5e736c3e0b945835480c6b06e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EA8 | 11104 bytes |
font_02_sfnt_off0001281c.bin1a00fbff1552770b3e933f4d7c06e4fc4c1ce9a291dc0b3ca70a5730695c25e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1281C | 22304 bytes |
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