MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and multiple URLs pointing to compromised WordPress sites, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or delivering a secondary payload via the link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9925
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b69d6c695---sefezinubididiju.pdf
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/j6pmr053q013k4i14d5u8o2u22/36520024669.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b5d5b84d941---43131462644.pdf
- http://www.cddfct.com/up_files/file/8058619666.pdf
- http://motoren-adachi.com/js/upload/files/17507713416.pdf
- http://aktifimmo.lu/userfiles/files/rawugoj.pdf
- https://kaptenhoki.net/contents//files/94640880222.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607826a555638---lugeke.pdf
- http://wisdomtours.net/upload/file/13185084476.pdf
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/cidci1kcqjeflnvsmkg5unu347/fopominidedunomuto.pdf
- http://mdsalon.ru/img/lib/file/nomogujufizomazuga.pdf
- http://hockeydh.com/files/ups/files/ruvuseluz.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/83d6290f4723e1fe564233722f4e3d81/pefexafure.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c6ebd8fe6---50199656182.pdf
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/mnf1v54f6k09g78edvruurorm5/61128647187.pdf
- https://interference.ajoda.eu/userfiles/files/22984309049.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608b188ed8477---72241791730.pdf
- http://topstec.com/d/files/61391986990.pdf
- http://csc0851.com/userfiles/file/20210806121939_sjlzab.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d1f75e1a3---41201730814.pdf
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb281e4879---wolarabagij.pdf
- http://zgkimsteszew.pl/img/upload/files/mawagaliseludajakuj.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/b4dbf412e267dce569ec169d5993d4a6/87613633112.pdf
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe282c0631---kavegakixadikexu.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161059b38b6912---90728817170.pdf
- http://bainihu.com/upfiles/editor/files/tozedoxapalasowonafe.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=nutrients+in+a+ham+and+cheese+sandwich
- 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_off0000dc68.bindfd572c0ed9b420e9fa4a5c88916ab6c6026bca1a8e2bafbc57199c91bab18e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC68 | 10632 bytes |
font_01_sfnt_off0000f495.bin73f0ab288bc55098dc817895a29bab795e2bc32d6db3ce365f7180d03456c6dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF495 | 18996 bytes |
font_02_sfnt_off00012634.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12634 | 16792 bytes |
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