MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings supports the conclusion that this document is intended to lure users to external sites, likely for malicious purposes such as phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://4grd.com/cmsimages/file/marafupirake.pdf In PDF document text
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160cd3b81abbce---mikumaxaj.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160f8d9783126d---72269784635.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7741e291cd---6711298969.pdfIn PDF document text
- http://cn-junsheng.com/upload/file///2021626125738180.pdfIn PDF document text
- https://amblamy.ee/upload/file/mevejeregakaf.pdfIn PDF document text
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f86e5edab0b---3605576090.pdfIn PDF document text
- https://tecnibat.net/uploads/archivos/ziwirixirulaxuf.pdfIn PDF document text
- http://esejsc.com/upload/files/dojagasotasajisipujaj.pdfIn PDF document text
- http://dchs1961.com/clients/871949/File/lawed.pdfIn PDF document text
- http://vestmorecapital.com/images/epost/xadovutiligog.pdfIn PDF document text
- https://nhatngudongkinh.com/upload/ckupload/files/54289966842.pdfIn PDF document text
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/ddcfc51f6bc73bfc082f57eca239d8d6/43912072792.pdfIn PDF document text
- http://exosushi.com/uploads/files/63143587237.pdfIn PDF document text
- http://miraesusan.com/ckupload/files/xewaj.pdfIn PDF document text
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/c1ad77383ab3037748335c975a1e9c30/53098949644.pdfIn PDF document text
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/b496de230ba085074a533fc95290d63c/29552203784.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/5f2d5160e5c3619b30acc389bfb6d7a4/dafaz.pdfIn PDF document text
- http://aliglobshop.com/userfiles/file/napuzaxeduvomexudavu.pdfIn PDF document text
- https://rockyhotelsgroup.com/uploaded/files/3761901662.pdfIn PDF document text
- http://chongthamnguoc.vn/img/files/87563787771.pdfIn PDF document text
- http://kelvista.lt/images/files/97826452124.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/2f25d2c5fa99807d9ba16220979798cd/mipitomuwoxapakimol.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b00454992bd---mevisobirus.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=dean+brody+i+like+cold+beerPDF link annotation
- 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_off0000cedd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEDD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e6f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6F4 | 10444 bytes |
SHA-256: a3711aa0d07938992eb3ddc4c03bc4840a595dd2bdc492422260d7966849072a |
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font_02_sfnt_off0000feaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEAF | 16544 bytes |
SHA-256: 3f935f36126aaf4e551eac9611da1d3140e991494ded759c91153af2d225d7f5 |
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