MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous external URIs, including one pointing to 'jacksth.ru' which is likely a phishing or malware distribution site. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is designed as a link farm on disposable hosting, further supporting a malicious intent. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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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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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=best+french+grammar+workbooks PDF link annotation
- http://beguwidip.scienceontheweb.net/65303621561.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459481/normal_606a47ab660f7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501810/normal_5fd3a336dc1d4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456660/normal_605cba483bc46.pdfIn PDF document text
- http://duxinivodozular.mywebcommunity.org/apnea_del_sueo_pediatria.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416501/normal_6038ccf313b72.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426408/normal_605947f9b9bd9.pdfIn PDF document text
- http://fodekofuxuvum.sportsontheweb.net/korg_electribe_2_sampler_manuale_italiano.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370051/normal_60645aa3aae64.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402507/normal_60601db6964c7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/e44e4e56-7c66-48cc-9588-3dee2c48c9d6/is_procreate_still_on_the_app_store.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6062a3c4-a538-45ca-93a2-326ac8ae4968/topipidarowixekuwu.pdfIn PDF document text
- http://zekonumusew.rf.gd/dagafugoraxujidojijapule.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/01522e7d-d75f-422c-aa9b-5f5658e80eb1/kubagixu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/535942f0-f04f-43cb-b89e-3d80e300ab3d/bsf_questions_and_answers_lesson_13_day_3.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe5ce13b-ee04-4e5b-a20f-542e3fa61249/pawinu.pdfIn PDF document text
- http://givetupazowo.onlinewebshop.net/77906802802.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d3282a2-f90f-46ab-ae77-fc5f02a88252/do_pack_n_plays_have_mattresses.pdfIn PDF document text
- http://lizixubo.epizy.com/32763202149.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6a5f5db0-eb14-4044-9e62-1c064410249d/how_to_be_a_graphic_designer_without_losing_your_soul_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4cf05522-8be4-4bf3-8e54-2812b9ad0d02/what_is_a_good_score_for_sat_writing.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/12cdc394-3e52-4bf9-a463-eb21fd4547aa/48591366087.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5f95843d-c983-4934-9d4e-ce40905b0bb3/boxidowifadusixuzutizevu.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_off00012b8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B8A | 5608 bytes |
SHA-256: 59851aaebeef5f0002ca1dbc1242b212b5561be1ce221763d00c28c9b9c36764 |
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font_01_sfnt_off00013e94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E94 | 13252 bytes |
SHA-256: fa9310939dd80c2a0dfbc80b1c135e74a44d528b7e3af11c36198b0b826ffdba |
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