MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to facilitate phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
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://ketchas.ru/uplcv?utm_term=cll+cml+all+aml PDF link annotation
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160746cc80acd5---xobuwoloxepubeji.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb9c20480c---mixovazasokimudivowujada.pdfIn PDF document text
- http://flygarfield.net/userfiles/file/75682189707.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/7f66c696e6a541a057f6384447fab7a0/jumozepusixuf.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16121d6931d002---94680760977.pdfIn PDF document text
- http://cyuanmei.com/userfiles/file/66210794789.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16081a5f816445---42382996096.pdfIn PDF document text
- https://xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/70191188731.pdfIn PDF document text
- http://zjhywt.com/images/upload/File/zujoduxiroretizunolowabu.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c18fb2a85f1---kagikosovenulitekewaxun.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b071721d3---22231523188.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/5gcfet140e8sasj91qgogoniv5/80945750465.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078634700f02---92575345164.pdfIn PDF document text
- http://x-site.by/upload/editor/files/kekus.pdfIn PDF document text
- http://edwardnugent.com/userfiles/files/67193847516.pdfIn PDF document text
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa23621957---pedevan.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a621ceb5ef8---54487579098.pdfIn PDF document text
- http://hongshengfish.com/uploadfiles/2021051807503617028.pdfIn PDF document text
- http://archi1919.com/smlclub-files/file/moxinuxoselapesisa.pdfIn PDF document text
- http://le-bouquet.be/userfiles/files/fanolewuduketene.pdfIn PDF document text
- http://prepearl.com/uploadsfile/fuxusuvopixixadezim.pdfIn PDF document text
- http://sowa-architekci.pl/userfiles/files/bivoditivivetumifebunera.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000deb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEB4 | 19620 bytes |
SHA-256: 5f1b317f20cf0cffdb09dbafa6a2b84faf8187f41265c7c07649492aa5bda893 |
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font_01_sfnt_off00011137.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11137 | 9608 bytes |
SHA-256: 1a355431dcff62fb96cffaeebcb4ac75b5bfe6f404e1a5e1d335455610f95c56 |
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font_02_sfnt_off000125fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125FC | 1788 bytes |
SHA-256: 4ccad62ac675a2a25cd40acd079ef94e1df8b0f098af6d55a0e58bd639950e62 |
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font_03_sfnt_off00012e64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E64 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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