MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, many of which are hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of 'utm_term' parameters in some URLs further supports the idea of tracking user engagement with these lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://chcial.ru/uplcv?utm_term=what+are+cremini+mushrooms+in+australia
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c45c5b2e1e5---golirijosiperamixovukefi.pdf
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc71a2dcf1---87300630404.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/48cf44ba0880ca858a5639ac88191987/13032224312.pdf
- https://hanahana.vn/media/ftp/file/tazofovazepikazesobemami.pdf
- http://xtra360.net/campannas/file/resopojetixusesosefi.pdf
- http://primaria-ciocirlia.ro/media/file/towasu.pdf
- https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/160788bbfca060---tefotuwefukun.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f67f7f003---kovonidanema.pdf
- https://audreyheselmans.com/_files/file/rodivafazobolibas.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160991f5bbb60e---58198671946.pdf
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/1e29dcfe8ce7309c22d88f3dee9e40a9/83228288002.pdf
- http://change-sexy.com/files/files/18038753545.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/16075abc4e1c28---99560091848.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160a637bb43604---21609711168.pdf
- https://kovtec.pl/eurostyl/photos/file/21017148174.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/chhntluju30n6nrg5ph5nvbgm4/zujasoratipukika.pdf
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608a74b01a26f---baxikovidasolepiribiduwu.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607447267a264---zabegedelibawusuzizuv.pdf
- http://yameitecl.com/ckfinder/userfiles/files/20210710_030537.pdf
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/20f9ee09f097ae1dc29e9685ae5314b3/pomosumomasa.pdf
- https://safrano.pl/userfiles/file/33368268796.pdf
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad739c9c46---fabazijupeworur.pdf
- https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/6gcem9f7fe8938k2taibjh8htk/22592080188.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_off0000f72c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72C | 16792 bytes |
font_01_sfnt_off00010f3e.bin2c532b9a306a485e4aa19ddd46101eb51b21eee7f199fb4a51e5d994477eff77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F3E | 17256 bytes |
font_02_sfnt_off00013bbe.bin04236d0c7124745efd9e50a6f72c1655d896c65f31c2ef89f37bb5cba6cfe735 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BBE | 10588 bytes |
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