MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or phishing operation. One prominent URL, https://jacksth.ru/strik?utm_term=how+to+get+trade+options+on+robinhood, is likely part of this malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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/strik?utm_term=how+to+get+trade+options+on+robinhood PDF link annotation
- https://static.s123-cdn-static.com/uploads/4374181/normal_5ff6941e8e6e4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418746/normal_603c148c702c0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4466996/normal_5fe4bb4a1930d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402520/normal_5fc7b834f1007.pdfIn PDF document text
- https://vugifalufaduzo.weebly.com/uploads/1/3/4/8/134889855/xolopekowudap_baleramu.pdfIn PDF document text
- http://hq-cleartv.info/how_to_use_evod_batteryypy8k.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368505/normal_5fd9ca3bb1fa9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4496577/normal_5fed0fe54fe44.pdfIn PDF document text
- https://gubizelejipeter.weebly.com/uploads/1/3/4/1/134131403/4b0c3badb5ac19.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485570/normal_5fd3210ee3792.pdfIn PDF document text
- http://buytoday.cc/niburikobetubafijofeanhhb.pdfIn PDF document text
- http://idealicaitaly.site/wuvagolusuligvjwb.pdfIn PDF document text
- http://baltika-trans.com/zunewawotu7odju.pdfIn PDF document text
- http://copyrightsupporthelpcenter.com/796257992902kau4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484990/normal_6025bad89c7e3.pdfIn PDF document text
- https://fogorito.weebly.com/uploads/1/3/5/3/135322632/fusapufoli.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/1f12080f-3b46-4f94-93d6-3a937b23ce78/resumen_del_libro_de_walter_riso_amar_o_depender.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cdd4a08e-d0fa-45c9-9cc3-9654f82f70a9/brady_games_final_fantasy_7_strategy_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/651db3bd-0dab-4680-a7b2-367f12b64cd5/how_to_teach_a_dachshund_to_stop_barking.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/76fd322b-b85f-4cfd-82bf-0880c97aa0d7/37813708657.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d20861b1-8cfb-4155-a51d-551bb07a6695/senior_graphic_designer_resume_objective.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/69951166-470b-47bd-88ef-cbd081f72b3e/the_sea_of_monsters_summary_book.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ccf82862-8dd8-48d2-8b47-513a55d71c60/elements_of_design_line_in_fashion.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/620b3600-5c76-4b8c-9543-e46f96caaa87/anna_kendrick_scrappy_little_nobody_quotes.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fbb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBB3 | 5168 bytes |
SHA-256: dd40484c58cedb09415743a46935f7892a0f2498329221c06474e5eafd368114 |
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font_01_sfnt_off00010d43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D43 | 11400 bytes |
SHA-256: c038c2c8e30ac7c50ae114f72bffcc948a2c07ff663f96b10ea0cc50c34b31e9 |
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font_02_sfnt_off000133e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133E6 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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