MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links pointing to compromised WordPress upload directories, suggesting an attempt to host malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, reinforcing the malicious intent. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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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://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b3e12c855---bafirolefagigubobebute.pdf
- http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/16180960583.pdf
- https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/rqddcdb5j6edovfthf23p3on65/lagovebeko.pdf
- http://turar-mussin.com/userfiles/File/24525139641.pdf
- https://aawyx.com/sites/default/imageuser/file/pomanubufadowupesowak.pdf
- https://udruga-invalida.hr/files/safabamagaregi.pdf
- http://quiltingacademy.com/fckeditor/userfiles/file/bikigelotenededodepa.pdf
- http://fine-cottage.ru/userfiles/files/92073023932.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/16070461a11926---vavefo.pdf
- http://zhengfutz.com/v15/Upload/file/20216272258206123.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8e443fca2---11276450136.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2b755df27---55820378419.pdf
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/8dd56b875c7efc17a60f5dbd4c32ac8c/fipune.pdf
- http://pamat.ro/UserFiles/file/44825049927.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160cbd0e3f1379---vokomeli.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/36a07448fdb3715800d5b89f5130ef72/38474417427.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608472ff275e7---rijufajogidaxivenadixu.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c0d4f05de60---majawuvozotudajidelesalal.pdf
- http://yer-krasnodar.ru/ckfinder/userfiles/files/bapapukezele.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609619cd13b66---petavenopezo.pdf
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079a8a61dda9---77569990049.pdf
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/1a1e7b194fba6b76b89f3b2d29580b06/6575756842.pdf
- http://nuraski.pl/wsg/userfiles/fimagexebofipurirewuduvuk.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1f0313496c---87041894179.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/778976e98d16ea7810fb7b747816dbe7/22166337775.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=about+the+situation
- 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_off0000ee7a.binbccef3433d4ce93731873122a205133ed082d922b70f8c0ad207277ca0e4cbed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7A | 10280 bytes |
font_01_sfnt_off000105a5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105A5 | 16792 bytes |
font_02_sfnt_off00011db7.bin974a370f3fe45a65098d8f4636c6a9bd93f6e910d96cdcd0c21c2d69b7b5dd36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DB7 | 16936 bytes |
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