MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links to external resources, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of numerous URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic point towards a campaign designed to trick users into downloading files.
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://krisoc.ru/uplcv?utm_term=download+block+launcher+pro+apk PDF link annotation
- https://tongdaidoanhnghiep.com/app/webroot/upload/files/jedujak.pdfIn PDF document text
- https://mytopics.it/uploads/file/xodotitudekuxelif.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/qr8q23tum0furmadgbqtjc0pv3/12470612246.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/51318966621.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bc5a6ee69ee---potomixosesemuxideteleke.pdfIn PDF document text
- http://azizolace.cz/images/file/luteluwavadodov.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607419f41b477---lulugipominajese.pdfIn PDF document text
- https://sport-jicin.cz/dokumenty/16074784439.pdfIn PDF document text
- http://angelojrobles.com/admin_initial_test/userfiles/file/gavotunisuzetumutizewi.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609c57873d043---pibofivi.pdfIn PDF document text
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/0d0be0g0ql3tgiub0cvglldcnm/wuwugerivosoba.pdfIn PDF document text
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/26qi2537ttu6tba13bqiafpbm0/nukumejinolim.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/kufufasolamidejuk.pdfIn PDF document text
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607167fdb47e8---luvik.pdfIn PDF document text
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608944d842502---vofate.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ue5us4lnlv9e3rh8c0lj3rlkr0/10475937082.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ce7c3ae7b---83609114317.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_off0000d107.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD107 | 5280 bytes |
SHA-256: d9290f501e4d70564f5ee2c9525bc13a8b57c871a126a5bd959f1c8f360377ab |
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font_01_sfnt_off0000e308.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE308 | 12332 bytes |
SHA-256: ecc792c13b51b0654c36f9d9c1b7e4e0c5c119b9501c4f64ede8a95fb3d9f841 |
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