MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ClamAV as malicious and a machine learning classifier assigned a high probability of maliciousness. Heuristics indicate the presence of a fake CAPTCHA lure, designed to trick users into interacting with the document. The document contains an external URI pointing to 'https://jacksth.ru/strik?utm_term=dead+poets+society+download+with+subtitles', which is likely the malicious payload delivery URL.
Machine Learning
- Nyx PDF Classifier malicious score 0.9850
Heuristics 7
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=dead+poets+society+download+with+subtitles PDF link annotation
- http://gimudal.iblogger.org/rirojobipe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422909/normal_6023f5a61912e.pdfIn PDF document text
- http://dowezujuzuzos.22web.org/9719310452.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420610/normal_600982f4911f3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463552/normal_6043585ea18c5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373004/normal_5fe3fe2125ecb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477138/normal_601a70481f1c3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4499656/normal_5fe1548868e94.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383471/normal_6064769758211.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427085/normal_6039d6df5951a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4457604/normal_6030838c37bb9.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/viwoxuz/warranty_letter_form.pdfIn PDF document text
- http://lozufoxozaniso.rf.gd/83733208355.pdfIn PDF document text
- https://s3.amazonaws.com/pirofopafu/do_impalas_have_transmission_problems.pdfIn PDF document text
- https://s3.amazonaws.com/vuliwisuwig/tesosavodisu.pdfIn PDF document text
- https://s3.amazonaws.com/bojafazes/lejuketofizedu.pdfIn PDF document text
- http://vonizevugopu.rf.gd/customer_journey_map_free_template.pdfIn PDF document text
- https://s3.amazonaws.com/dinigugaxej/woranagubo.pdfIn PDF document text
- https://s3.amazonaws.com/bodajaku/jesus_today_devotional_sarah_young.pdfIn PDF document text
- https://s3.amazonaws.com/mejobu/ropodixasabetegizekujun.pdfIn PDF document text
- https://s3.amazonaws.com/jadere/computer_application_books.pdfIn PDF document text
- https://s3.amazonaws.com/xopugup/why_did_the_skeleton_visit_a_butcher_shop.pdfIn PDF document text
- https://s3.amazonaws.com/dozore/lidojiwodediwutokopema.pdfIn PDF document text
- https://s3.amazonaws.com/gotitibekovi/nifaduz.pdfIn PDF document text
- https://s3.amazonaws.com/rabewiruzitewa/yeti_microphone_arm_stand.pdfIn PDF document text
- https://s3.amazonaws.com/xukonakefules/why_is_my_sky_remote_control_not_working.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_off00024db1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24DB1 | 4968 bytes |
SHA-256: 9ee039e831e133f94d8ab398f5e5fc1b2eb45812ffa0d3c2f6b63fa9c5502a1c |
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font_01_sfnt_off00025f12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25F12 | 5400 bytes |
SHA-256: 0d6530d5ce0a140bddba89b5c08651ceeb27bd3d5e5645d1d66030651dba4785 |
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font_02_sfnt_off00027185.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x27185 | 16476 bytes |
SHA-256: 81d333115db09509d6c676435290d2a07ec163eba645a722adcfe66c03796b08 |
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