MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress sites, suggesting it's designed to lead users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a network of links for SEO manipulation or to host malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://laborke.ru/uplcv?utm_term=kdcc+bank+exam+previous+papers
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160806a7e68245---mudigavokoguloxugeda.pdf
- http://novussiteyonetimi.com/uploads/file/nikoredufodazaxufaxi.pdf
- http://asiancfea.org/userfiles/file/zusixelogigiselulu.pdf
- http://technocom.pl/editor/file/botoka.pdf
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16086fde6c17be---254365631.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ada0bd51093---vemujelo.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/td1fp55vgerisq39mop9ip9511/80704657570.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/c84ac6ddabd8585c15a3e9b75bbf0676/fovapufumi.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160cc9fe73cfe3---86006368596.pdf
- http://duepassidalcentro.it/userfiles/files/nebokawusedodujegipubutab.pdf
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/f0450344c490604c7d51796d6f5d5270/javufega.pdf
- http://www.findvoters.com/userfiles/file/tumetusigikidumozagiv.pdf
- http://renovator.cz/files/file/ninopofube.pdf
- https://agrilaui.com/userfiles/file/jidijoxewasarasitixosaxan.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e1bec53d24b---jorikawibitizugilere.pdf
- https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/6bf1ce61bed63d60da242de4cfe65d65/gabekunarawudixaliji.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160adc62c887db---34426493488.pdf
- http://bandenplaats.nl/cmsimages/file/68447297718.pdf
- http://mikailang.net/userfiles/file/20210501110253_2124149476.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160a529493f7d5---81826505271.pdf
- https://mt-creativestudio.com/ckfinder/userfiles/files/zijedejewuxowalupegaf.pdf
- http://vstarmp.cn/upload/files/20210707_060518.pdf
- http://studiomarazzi.eu/userfiles/files/fabudiralaru.pdf
- http://studiogiamberardino.it/userfiles/files/dukeremunajujo.pdf
- http://pressvaluation.net/userfiles/file/pumedowojuvebumuwuxarevog.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_off0000e673.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE673 | 16792 bytes |
font_01_sfnt_off0000fe85.bin4f49af12b9567e183a65b314028bf9f9d0000b1576c3f3c1c0b04ce0e3ca4343 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE85 | 17492 bytes |
font_02_sfnt_off00012c7b.bin549edf976e1ec011640c3147a00d14b1c44a150fe85df5820c4b756a2b50eccb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C7B | 11020 bytes |
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