MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ClamAV and an ML classifier. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to compromised WordPress upload directories. These links likely serve as a distribution point for phishing content or further malware. The presence of multiple distinct hosts and the use of 'utm_term' parameters suggest an attempt to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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 https://irlanc.ru/uplcv?utm_term=the+outsiders+book+chapter+1 PDF link annotation
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6850bd5178---63212952083.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c78b4a4593---2374774509.pdfIn PDF document text
- http://duocthientam.com/uploads/ckfinder/files/wobezut.pdfIn PDF document text
- http://jedwines.com/cmsCart//upload/file/pokexezov.pdfIn PDF document text
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/0ao41ui3m45cc6br76dr6ha5nd/wofesewe.pdfIn PDF document text
- https://silga.ca/userfiles/file/gufoxisurowotidog.pdfIn PDF document text
- https://chameleoncoupons.com/adgprocessing/uploads/files/totosirix.pdfIn PDF document text
- https://ivanda-commerce.hr/userfiles/file/mivedajoxisugu.pdfIn PDF document text
- http://aibasavar.edu.bd/app/webroot/ckfinder/userfiles/files/sotiwisupisemubulag.pdfIn PDF document text
- http://koreabulk.net/userData/board/file/69506976365.pdfIn PDF document text
- http://hyundaidongdo3s.com/images/files/tixutujexusofabovefunaz.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609cfd6976c9b---fuvekakuxekeguwoze.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a27b4862ced---tepidodudexesuponifub.pdfIn PDF document text
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/6c1d2b9e2da1ced3ff8b458269c07d15/wezukuzopabukiropisetiw.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f20fdce95e---sijilenekodazememibumew.pdfIn PDF document text
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b68d5e2b4e---reboponidukonadugiku.pdfIn PDF document text
- http://uro-medical.pl/zdjecia/fotki/file/77311367324.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1609c032263b95---37671178679.pdfIn PDF document text
- https://paulins.se/anvandarbilder/178/files/bepidilikekeduwi.pdfIn PDF document text
- http://goodfortune.hk/UpLoadFile/file///84122952360.pdfIn PDF document text
- http://szentistvanpatika.hu/upload/file/funupafoda.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161216b42353fb---vitezikomo.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160829d079b2e8---87557467382.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607174b1ad6fd---tapidewofomuzitexefozal.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072234c14a02---deluvevabaxulaw.pdfIn PDF document text
- https://suksesunited.com/contents//files/nilakadadomojezovasaxepu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f407.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF407 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010c19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C19 | 16132 bytes |
SHA-256: 2d7215f51ed56ccf1c8d62a27b8fb77b5506ca5e507b2cfa0193b4543cf6c2af |
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font_02_sfnt_off000135d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135D6 | 10808 bytes |
SHA-256: 66c5c71d646b660c1b6b9838faf8401524b57eeb933c97ae12f93d11991ea70d |
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