MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded URLs, with one specifically pointing to 'jacksth.ru' and disguised as a tax rate document. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for link farms, suggesting a malicious intent to distribute or phish. ClamAV detection and ML classification further support its malicious nature, likely as a phishing lure or a downloader.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 5
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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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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://jacksth.ru/award?keyword=tax+rates+for+ay+2020+20+pdf PDF link annotation
- http://wadutijop.iblogger.org/52317831602.pdfIn PDF document text
- http://xilagima.66ghz.com/37557701418.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381978/normal_604366883b60e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489835/normal_5fcc6f3ac475a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370270/normal_6037f7b11a799.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380384/normal_5fdafe3fd4f9b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/fowonaxul/crtslv._dll_failed_to_register_crystal_reports.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b41cce52-447c-4eb5-aa95-bce43df88409/resumen_libro_la_meta_eliyahu_goldratt.pdfIn PDF document text
- https://s3.amazonaws.com/gowebabuxogiro/treat_coliform_bacteria_in_well_water.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d6ebaaa6-6a3e-40e8-8b15-510c2139f971/85269220288.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b1fa0a11-3bf5-41dc-89c1-480a1f873138/kobitefirevibudaken.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d5497d12-5b19-4fd5-b825-ab0950a6f975/23358002735.pdfIn PDF document text
- https://s3.amazonaws.com/lixuduwonifa/69637283663.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a470fcbf-5ae3-4557-b777-8784cb24b0a3/hp_officejet_pro_8620_parts_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/18680ca9-078a-4252-840b-21d73b04e083/xozavenipamatezam.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fc93af27-13a8-454e-8ae8-11fe59e4395b/what_does_soft_touch_mean_slang.pdfIn PDF document text
- https://s3.amazonaws.com/zebarufuridorur/ford_explorer_repair_forum.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b414dd77-58bf-4e38-9f39-3b192d6eb294/20058784791.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89de5429-22cc-40c2-996a-a65acdc10cd1/where_is_the_starter_relay_fuse_located.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82a675bf-db22-44a8-8811-e471b836b846/how_to_test_a_oven_temp_sensor.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79e0334b-ba28-4b93-b703-19168f327d44/convertir_pulgadas_en_centimetros_cuadrados.pdfIn PDF document text
- http://fasajixibapa.epizy.com/brotherhood_of_light_courses.pdfIn PDF document text
- http://zerujafulo.rf.gd/67799687706.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://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_off0000efaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFAA | 5396 bytes |
SHA-256: 535a777fc60b01a9f5fc3aebbaaba079e8cc9818f266396ad4c4dcf0774b3e08 |
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font_01_sfnt_off00010221.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10221 | 10900 bytes |
SHA-256: 38fe4aa76e41438d3047b5cba42d5e6c36d374ad17b84847f3ef4fbef5c16d27 |
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