MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It functions as a link farm, directing users to numerous compromised WordPress sites, likely to facilitate phishing attacks or distribute further malware. The presence of external URIs and link farms on disposable hosting indicates a deliberate attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://archism.ru/uplcv?utm_term=permanent+magnet+moving+coil+instruments+can+be+used+for+the+measurement+of PDF link annotation
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2cd161dfe---nupigele.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/epc5shdrjb79psf1jesgu1f30h/xadoxakulunomabekobedafe.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609db9416d021---22630425384.pdfIn PDF document text
- https://apoiotelecom.com/imagens/img_fckeditor/file/72361841648.pdfIn PDF document text
- https://centrosteadycam.it/wp-content/plugins/super-forms/uploads/php/files/4e14700592b278115d106389903695b7/lonodogixipasaris.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/tmp/totusu.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/6veqdbdmm67i7tlateu8ioo31n/22318901884.pdfIn PDF document text
- https://www.elitelawnsolutions.co.uk/wp-content/plugins/super-forms/uploads/php/files/86odvd82fappdt31brdujsj6eo/domuvumimep.pdfIn PDF document text
- http://0-50.ru/userfiles/file/85092778945.pdfIn PDF document text
- http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160d3106eafcab---17515067136.pdfIn PDF document text
- http://nmglyxx.com/userfiles/file/jizukida.pdfIn PDF document text
- https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/3aeb7f38a7448b1207cc2891d06b6dd9/dujava.pdfIn PDF document text
- http://luatsutiengtrung.com/app/webroot/uploads/files/kemoveratugevule.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b03e1ea8452---gofipiwutorexolata.pdfIn PDF document text
- http://broorybulldogs.com/clients/33993/File/73543158096.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b2623de1c---mosivururivosafikaxi.pdfIn PDF document text
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/873e5138b578a2308fa24b16a623e4a8/tujig.pdfIn PDF document text
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/624dbb2906e29a5e3a4926d7a4a90977/1123623687.pdfIn PDF document text
- http://vencedor.coop/images/admin/file/1031845354.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d360714086---41748032879.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/6b1702e64f5c7eb1a52d953e6f2bfe1c/7332801386.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7aea8b090c---kaboxubugatove.pdfIn PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087018639e06---sulizadokunazu.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160da91038238b---devugiwisawaximoxozemoken.pdfIn PDF document text
- http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/laxomubobotomalikiwixebu.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_off0001009b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1009B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000118ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118AD | 18856 bytes |
SHA-256: df7bfeae488cd0971c78ee65437b2f77e0dc78b489d3fc7f71ba1f8d558729dc |
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font_02_sfnt_off00014a12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A12 | 11228 bytes |
SHA-256: 09bfe068e392f952ce055d3d2bc9a87f60b6a65a62cf633100219efcbc2f0ccb |
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