MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a password-protected archive lure. It contains numerous links to PDF files hosted on compromised or disposable domains, suggesting a link farm designed to distribute further malicious content. The presence of these links and the overall structure indicate an attempt to trick users into downloading and opening a password-protected archive, likely to bypass security scanning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d18438727f0---pegesugalegijukobatibuxeg.pdf In PDF document text
- http://tvtamminhphat.com/uploads/userfiles/file/rapoxezejepikero.pdfIn PDF document text
- http://nutronicltd.com/userfiles/file/sesasuzanovumekuxogag.pdfIn PDF document text
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/6de93c399facdbf6e4c6b4ca0a963867/55003809551.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a9814f30b9a---39905277708.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/17625668366.pdfIn PDF document text
- http://shreejians.com/userfiles/file/59554774324.pdfIn PDF document text
- http://secureyun.cn/uploadfile/file///2021070805492116.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/80672214619.pdfIn PDF document text
- http://atdawnwelift.com/userfiles/file/65010601122.pdfIn PDF document text
- https://vieclamday.com/userfiles/file/rojagewubapabimisatomozep.pdfIn PDF document text
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/e7u29ijdr3ooad0k08v4hbvtki/43257398780.pdfIn PDF document text
- http://cleanyachts.it/writable/public/userfiles/file/89637875317.pdfIn PDF document text
- http://aaaexpressac.com/userfiles/file/judoboxap.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab0b09d386---4407978296.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8436a6595---36716336710.pdfIn PDF document text
- https://paperland.bg/uploads/file/nojivarelif.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/179340bcc0fc31add6778856d8a4feac/8806878157.pdfIn PDF document text
- http://impactpluslearning.com/ckfinder/userfiles/files/92239487332.pdfIn PDF document text
- http://tatishev.ru/admin/ckfinder/userfiles/files/wojevenalu.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f6e17b5fd6e---bedijuxezonidumerol.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16099d81f3eea3---wujimora.pdfIn PDF document text
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/2eo6ugft6a5kae4tgvj4e66i75/10724945468.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/krhkvfib4trg4g7nb471p4vl3l/10540834683.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160cda4ec516d7---97514623085.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=chilton+auto+repair+manuals+online+%40+the+libraryPDF 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_off0000d8d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8D1 | 17448 bytes |
SHA-256: 3de747eb392974971613fd07b2eb46592f1975dec712720087374ee5737ebf44 |
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font_01_sfnt_off000106c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106C5 | 11216 bytes |
SHA-256: fd209d7e26a489737bb9bb96c0e6c6332c0c1219ddcc0e453055ad3b53222cc4 |
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font_02_sfnt_off000120b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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