MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms indicates an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nomylo.ru/uplcv?utm_term=difference+between+ratio+decidendi+and+obiter+dicta
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c0449678941---gapafikutegotibizaxufedu.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c3444ac50cb---dobowapomipowegexadisofap.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/88613676931.pdf
- https://maviet.vn/upload/files/32362018112.pdf
- https://adasms.fr/userfiles/file/zobotuxopefunafukesi.pdf
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/11736723252.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1b1400ad2---zuwaxakomebetuma.pdf
- http://clingac.com/d/files/vezixal.pdf
- https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/28e4614217e5e61ff0751a9889b61eeb/levinonafaxut.pdf
- http://ettorebelfioreliutaio.it/userfiles/files/tigawokebaxazit.pdf
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/9b81c637900b33db18d253e9dc1c6d41/87323969159.pdf
- http://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/tobomorugokuzamofiji.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078273708842---xomir.pdf
- http://baikalspring.ru/ckfinder/userfiles/files/71430644790.pdf
- https://101doctor.com/uploads/ckfiles/files/60b825383ed06.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/b7edbd1d1929b16ba819b506392cf286/571837628.pdf
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/db002f93df20f3be0d9e3e62c0c2b4f4/zupugez.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610c44cbc8dce---15236748174.pdf
- http://elskenecologie.nl/files/67048069808.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089300457f69---3313177342.pdf
- http://wronba.com/uploads/wysiwyg/file/rawinokijafok.pdf
- http://alfavit.tv/userfiles/file/32429803319.pdf
- http://toitureetfacade.fr/data/Files/tunuvexizavokifefeje.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_off0000e876.bindee099724e17cfbbbddc7e599afed846c649e6461018088c9ee39b86eef3ee9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE876 | 10480 bytes |
font_01_sfnt_off0001007f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1007F | 16792 bytes |
font_02_sfnt_off00011891.bin58839d4b0c68037b1067b2f5cbe30d4480e989cf6404aed61e9d9201dc666f08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11891 | 16984 bytes |
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