MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick users into installing malicious software by posing as a necessary browser update or extension. The embedded URLs, such as ketchas.ru and mimpi1pusat.com, likely serve as download sources for the malicious payload or further stages of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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 https://ketchas.ru/uplcv?utm_term=out+of+your+mind
- https://mimpi1pusat.com/contents//files/94517453413.pdf
- https://promobryansk.ru/userfiles/files/lizasevafozeluxazug.pdf
- http://kezmosas.hu/files/file/16596909474.pdf
- http://faw-asia.com/image/upload/files/12177214028.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/b4a883cdd1a0ad2a679ff989eb171ff7/jawatolijefalososofugola.pdf
- https://anpheatingandac.com/nbloom/fckuploads/file/85682652784.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcce79272b---11667501163.pdf
- https://apinero.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075511e86321---peminumanokebebudorom.pdf
- https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6fde7935a---10160441682.pdf
- https://daleel.global/wp-content/plugins/super-forms/uploads/php/files/a67rt4d5m4e6ee4j03fd2sv6jj/veponotajukex.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/16c074c9b2f3f3cbe2cf6060b3edc929/wamorosixago.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160cddb79aaa54---bugebefolisutorotowef.pdf
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/juvolotozalisojes.pdf
- http://thetachikappasigmaalumni.org/clients/5/56/56ac51e2ee760b54d3ff8b7d53c877b7/File/36711270667.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a52084090da---bugekugaxifuzazuwoviva.pdf
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098300450213---fajenaxikexedarivepelo.pdf
- http://budohurtsa.pl/userfiles/file/47032284681.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/9c4e22d2e8d5ddc808e7386f5f345e7f/54015041569.pdf
- http://zbraneklapka.cz/ckfinder/userfiles/files/34515493259.pdf
- http://okna-stv.ru/userfiles/files/naluwukotibimeduxomikik.pdf
- http://renovator.cz/files/file/jijiberugitaro.pdf
- http://alnadaoil.com/userfiles/file/ximojekituja.pdf
- https://alianzatours.com/imagenes/file/jopageligozipe.pdf
- https://aquafilling.com/userfiles/file/wapemew.pdf
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc3ccce5d3---70474630555.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_off00011d92.binfe66e1d0a4426964b4227650e6bb32457dbab3bef6f7af95ae37a7cebbd77a2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D92 | 17320 bytes |
font_01_sfnt_off00014ae1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AE1 | 16792 bytes |
font_02_sfnt_off000162f8.bin1453d17d59dfa1c9996400e46541b9133fc0a240edd9425c3d8c0cdf23c0b4e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x162F8 | 10244 bytes |
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