MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised CMS upload directories. These links likely serve as lures to phishing sites or malware downloaders.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083ab5ac055f---73468913811.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/opdr9j7vdpefc3uecvkrvaroi1/28817871005.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2c9ee5b361---xawaxinamaxite.pdf
- http://rudolphi.nu/userfiles/file/niwivezilukapijunapezat.pdf
- http://xn--80aamdqpfpr.xn--p1ai/upload_picture/jaramaregabetonemolor.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a62ad8e21---dijaruvumuwofitare.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/f39bp5aja2ogsjfdmbj893ugc9/50542509803.pdf
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8564a7cda---37244605550.pdf
- http://drwatsonsr.com/clients/2/2b/2b9a0cf27321ceab3a47fbd10bf94d34/File/30018990997.pdf
- http://backupcenters.com/userfiles/file/43976424129.pdf
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/dd140cbca35240ee02354883142a4d5d/59575091538.pdf
- http://banlinhkienlaptop.com/userfiles/file/30521890909.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3cb0af854---52856605069.pdf
- http://10glazsikeyrosa.ru/file/85027156582.pdf
- http://haileylusk.com/clients/e/e6/e6412a3df854040bfb282c4f37eddf02/File/28246680036.pdf
- http://ithaca1962.com/clients/41687/File/gikilovusirafele.pdf
- https://angkortaxiservice.com/userfiles/file/vitorasa.pdf
- http://rund.cz/UserFiles/File/bufujudefiw.pdf
- https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160823f3093317---51628760856.pdf
- http://sacmacbook.net/userfiles/file/71564224652.pdf
- http://amandatravel.com/userfiles/file/87780435491.pdf
- http://wojno-stal.pl/pliki/file/43737296084.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/nbho8hklenjhdgqnu7gjk2cafd/67808021586.pdf
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/m6imebdh9gmc761scnnc2clq96/264475063.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/batinaxazogeboximotas.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=coc+th6+best+defense
- 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_off0000f3c5.bin63931e0f1ceb41912623af09bb9be84b201ec06133a54cc1b27d696882c0ca0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3C5 | 10512 bytes |
font_01_sfnt_off00010bab.bineea2b97984795f4ed0037d33e2145abb79be981fb0299192d2f5d1be3533f694 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BAB | 18924 bytes |
font_02_sfnt_off00013cbe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CBE | 16792 bytes |
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