MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file 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 embedded URLs indicates an attempt to direct users to external, potentially harmful, resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://chcial.ru/uplcv?utm_term=riddor+1995+pdf PDF link annotation
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160704009012a4---jijasititujokinupus.pdfIn PDF document text
- https://arerp.kr/data/file/%5C/sewajuxazazolo.pdfIn PDF document text
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/645c3f6070f2eda0b10dc86197400c4e/xozobidamaxo.pdfIn PDF document text
- https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/9rkb4r5aiaoudre92d2gdel6jk/gozugijazusibagifenaz.pdfIn PDF document text
- https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/9otqqnm6tg4sp8md40bbmkajku/89092436996.pdfIn PDF document text
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ffca2e480---679154892.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606e1a6f56b9c---99248038470.pdfIn PDF document text
- http://yuha.be/_files/file/lukisonisawab.pdfIn PDF document text
- http://adveotec.com/img/file/novetakibusafezobipetofa.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/533d646432190e098695814476a36907/mepowigenekuzamuvawi.pdfIn PDF document text
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/1t26qfpb2988iks2qhejkoq5ai/kiluputejenifu.pdfIn PDF document text
- https://hitourkorea.com/FileData/ckfinder/files/20210620_2D63AD2DE507C08E.pdfIn PDF document text
- http://ajtoablakcentrum.com/_user/file/rotajaro.pdfIn PDF document text
- http://alhouti.com/userfiles/file/godefu.pdfIn PDF document text
- https://protrialse.eu/files/files/4852790122.pdfIn PDF document text
- https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/cbc93acb15a49b79015ac6182eeb9b4b/77777237342.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/vop9eojknq150uecf97pjsfecb/jinoni.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fe9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE9A | 4952 bytes |
SHA-256: dd1e1f845cc5dccc7ac129ba06a564ac1b5dd362444725c72a1c3fcf79c6b08b |
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font_01_sfnt_off00010f96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F96 | 11208 bytes |
SHA-256: b1e3ba6b9765eb38c6974d59712e5efdca883200b8259342d7464d0151d61c81 |
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