MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ML classifiers and ClamAV. It functions as a link farm, containing numerous embedded URLs that point to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, indicating a malicious intent to redirect users to unsafe content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://krisoc.ru/uplcv?utm_term=manual+car+or+automatic
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16073965184cb5---libobituluworegarujekoxog.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/d5vgjqh616h2b4d5vlsonogm1j/nagoribudobevedadavo.pdf
- http://logiccpacma.com/ckfinder/userfiles/files/mabobedunufesenenazope.pdf
- http://geredekombiservisi.com/userfiles/file/gexarep.pdf
- https://medprobr.com.br/wp-content/plugins/super-forms/uploads/php/files/38a16b1edad0db7d3cff0f91083825e3/56225056333.pdf
- http://cukierniabrzezinski.pl/www/artizam/fck/file/sakotiro.pdf
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/baa58be75f5eb9210777a975e95221f4/fijukuxapisajusagagu.pdf
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/2a4a23dc97a903973c7b086af52ca525/gibiraxefegasusabibij.pdf
- https://tecnibat.net/uploads/archivos/70045472728.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/dc6db797f61eb0787067007a9e6d8ea4/bilekag.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16093aeee86b01---zifoto.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/b27acb395f749efde93bced8b592d775/65586262029.pdf
- http://spoanalyze.com/wp-content/plugins/super-forms/uploads/php/files/d185c31ad29f7cf05c40366d81df59a5/josurabivotepi.pdf
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/rewiwajewori.pdf
- https://pypconsultores.mx/userfiles/file/jirizasoja.pdf
- https://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/160794474af9d6---67126810435.pdf
- https://footballsod.com/images/ck-uploads/files/wipujomakoburofivozi.pdf
- http://koryosushi.com/uploads/files/nigome.pdf
- http://aaaexpressac.com/userfiles/file/zefotewoles.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_off0000e5b3.bin0936ff6f951b130765c663675b62842fafa1f4921bfab3947bbe6c007f5e1001 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5B3 | 16504 bytes |
font_01_sfnt_off00011089.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11089 | 16792 bytes |
font_02_sfnt_off000128a0.bin3ef9ccc88bcea631a34e27a324d945fc03fb1c925b841ac5ea08674f915db07b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128A0 | 10184 bytes |
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