MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple external URLs hosted on compromised websites, which is a common tactic for phishing or distributing further malware. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics confirms the use of compromised infrastructure for hosting these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://pistant.ru/uplcv?utm_term=what+is+an+oem+manual
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6d5e35846---ligopoluzoluw.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608b49c633a58---damuvevezenidi.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1607d12e567e03---xozukiragagofixovunoxugob.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/c96765b624631397e23d22cbf3365e50/58719997632.pdf
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/b9c5012hq1uj6its6au9v8lds5/xumilediju.pdf
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/9f9079fd9cb269b8047325acc3992eeb/95821785389.pdf
- http://cec-intl.ru/app/webroot/files/file/65529725381.pdf
- http://poltinka.ru/userfiles/file/zogazatem.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/e9838a6c9ba18e22788868b3bca3c4d9/nakogowitamipefimaxil.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/n0qml89uemaunqgbce6fhp8ia3/23567478183.pdf
- https://thegioidongphuc.net/ckfinder/userfiles/files/xekenesitakitadokajokum.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607125b733d16---18694031764.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/9g1fp9tua2ch2c4rng3v14omtu/dajuvirukuzize.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b49925359a7---perepilazopagewalonemu.pdf
- http://bertoniamministrazione.it/bertoni/public/file/kemetapebawusoki.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084c68219203---74950650923.pdf
- http://doktor-okonski.pl/uploadimg/file/zukifivopame.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c694a3cca8d---porululibopam.pdf
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/b29154fd2dd90cc62a471de156b753cc/33745932809.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c75e405293---33774035630.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/318e274aa464b3ef083d1aad67ca7829/mefixexegonenuvixekaletis.pdf
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/90cfd2ed9f4fc705f543d7a1e6914d52/dagorekivevabitubu.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16073615c1c082---15451499956.pdf
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16245667303149.pdf
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd385dd169b---10230512487.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_off0000cb29.bin72187e92499264d697707370b355e10d597ab02081bc21407885f205003210f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB29 | 15724 bytes |
font_01_sfnt_off0000f361.bin49d97bc5d7f8d02c2aa456df11d11d0923a1bbfdb9667a19559f7dd3c5d6c82c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF361 | 10368 bytes |
font_02_sfnt_off00010aa8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AA8 | 16792 bytes |
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