MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to various domains, many of which appear to be part of a link farm designed to redirect users to potentially harmful content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, further suggesting malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://inwebjor.ru/uplcv?utm_term=card+acquiring+business PDF link annotation
- https://hkparkkonutlari.com/image/files/12718642909.pdfIn PDF document text
- http://modern-pro.ru/files/file/gegexalesulutitabolubaji.pdfIn PDF document text
- http://hakkabrothers.com/userfiles/file///36883810440.pdfIn PDF document text
- https://hotellemaritime.com/hotel/upload/files/basideborobigigijofe.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/kiguvofiga.pdfIn PDF document text
- http://maskaevlawyer.ru/userfiles/file/97803817957.pdfIn PDF document text
- http://back2wood.de/userfiles/file/49357104816.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160dea2bdec816---13664767461.pdfIn PDF document text
- http://the100voicesofgospel.de/fichiers/newsletter/file/sotarujave.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5d10c00e54---bexusetosefasisuvaj.pdfIn PDF document text
- https://zold-kommando.hu/files/mozifopigifupovekuvanu.pdfIn PDF document text
- https://powerliteaac.com/userfiles/file/fukarixovukoxikulek.pdfIn PDF document text
- http://lecostationery.com/files/file/salebajevopikojazajurixup.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160876500cc6e1---lenamamepisidi.pdfIn PDF document text
- https://airflow-skateboards.com/userfiles/files/59355964822.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/bevuvuxudotisefa.pdfIn PDF document text
- http://aldo-ins.com/userfiles/file/94436609724.pdfIn PDF document text
- http://uptownfallschurch.com/uploads/files/44691768437.pdfIn PDF document text
- https://nevisnews.com/userfiles/95494793737.pdfIn PDF document text
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/6b3884a32500e0bc5e52e2383d2a43a8/112933496.pdfIn PDF document text
- http://auxerretv.com/content/public/file/vedemigenorimivowinow.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d687.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD687 | 17600 bytes |
SHA-256: cd27106b2117be11311d5215cf3d8e6d781d8c99911c0e18f69bf0d8e540d8c0 |
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font_01_sfnt_off000103ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103EF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011c06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C06 | 10696 bytes |
SHA-256: 675eac5fb193d85d8752d50217eb5fec78f50d55c9f75ae4464b1dee8adc2583 |
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