MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a password-protected archive lure. The document contains numerous links to compromised WordPress sites, suggesting it is part of a link farm designed to host or distribute malicious files. While no scripts were directly extracted, the PDF structure and link farm indicate a likely intent to download and execute a second-stage payload, possibly disguised as a data recovery tool.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160eff725e3b3f---pabedobu.pdf In PDF document text
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093025c48ba7---gozasazulafiziligekazige.pdfIn PDF document text
- https://vestol.bg/files/file/96469714823.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/84969330797.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/ndc5onhegmlu7ihv5kb6j7in6p/batevotub.pdfIn PDF document text
- http://inezorviskids.com/clients/37546/File/bokuvakikorit.pdfIn PDF document text
- http://afgventuregroup.com/cfiles/file/lozubutate.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/445c9a7c8fdb5801414a206668ab8fb1/61037007409.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075271801e29---5126895804.pdfIn PDF document text
- http://vankouwenenmastop.nl/UserFiles/file/verugudototironedujotub.pdfIn PDF document text
- http://www.benyowsky.com/resources/files/58089574775.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef5bd957bf---18067480561.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ba7332c07cd---11268242844.pdfIn PDF document text
- http://simonhoirup.dk/userfiles/file/36986465228.pdfIn PDF document text
- https://equantumconsulting.com/files/files/82699274407.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e776ca552ea---41319743412.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/lotowediwokijukojeg.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/3e5cc85fa6f7cdfba2c3f410cd0c50a3/nelekixiwabubelogulu.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/cjogcr12tqve9e6ac8or5tisc8/6288285430.pdfIn PDF document text
- http://boracayg.com/FileData/ckfinder/files/20210708_AD3A2D3FCDDA5947.pdfIn PDF document text
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/32u3hgog7qi50qnccnaq4u59pt/61724798722.pdfIn PDF document text
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082ccff2719f---97510129306.pdfIn PDF document text
- http://aucoindeshalles.com/menu/file/viwozuvafikibob.pdfIn PDF document text
- https://balbok.net/admin/ckfinder/userfiles/files/gufuwawupa.pdfIn PDF document text
- https://nhatngudongkinh.com/upload/ckupload/files/dazukame.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=data+recovery+wizard+fullPDF 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_off0000f7f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7F6 | 17248 bytes |
SHA-256: 6b1729c1c1b955e084293b601af4766675ce6900d9c9fcef97a532b5dd38aaf8 |
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font_01_sfnt_off00012527.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12527 | 10624 bytes |
SHA-256: 73440c6ed09c9c7dd20ca3fb227826f0587a6ca037e2fd017e255eb6df79a2ac |
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font_02_sfnt_off00013db5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DB5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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