MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with one prominent URL pointing to 'zajinet.ru', suggesting a phishing or malware distribution lure. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further indicates a pattern of using disposable hosting for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://zajinet.ru/strik?utm_term=verb+tense+lesson+3rd+grade PDF link annotation
- https://static.s123-cdn-static.com/uploads/4460980/normal_5fcc61890080d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407807/normal_603c4e0c3a7b8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369327/normal_5fe9fe0030a22.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418001/normal_606196d99f573.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375339/normal_604463ed3e7fb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404741/normal_5fee39774b896.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450042/normal_602c8c8a10be3.pdfIn PDF document text
- http://fokikizuxijem.iblogger.org/powermax_65_error_codes.pdfIn PDF document text
- http://sizixarasejinor.22web.org/pdf_to_word_converter_onlineburger._com_100_free.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://desiwafinu.epizy.com/lolaxanobif.pdfIn PDF document text
- http://kivudul.rf.gd/atwood_model_g6a-8e_parts_list.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d17c2bbc-49b0-4d52-a685-4f2e292cd22d/oppo_105d_for_sale.pdfIn PDF document text
- http://saxowuwu.rf.gd/formas_de_expresin_oral_y_escrita.pdfIn PDF document text
- http://kufekamulez.rf.gd/bujobiva.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25861b73-65b9-4a1e-85d7-8cb0633a7b49/how_to_install_plugy_diablo_2_1.14d.pdfIn PDF document text
- http://mukesowumoj.rf.gd/anti_cheat_linux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0d7d76be-a127-45ab-baf1-9c8544bc3ea3/73572546198.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0a723978-6fc3-4fd2-b4c9-704e63f07d36/is_it_worth_investing_in_penny_stocks.pdfIn PDF document text
- http://mojilobopage.rf.gd/algebra_1_unit_12_test_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/39b1793d-a21d-46a9-ab1e-ee53f34b7eae/88842698872.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fb85cc95-490e-49f1-90aa-eeb88794e0b6/what_plate_boundary_is_philippines_on.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_off0000ef82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF82 | 5264 bytes |
SHA-256: a26b22ed07d6388bd8599dc191392e072f6027f66f9c0256fe786dc52219bcef |
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font_01_sfnt_off00010173.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10173 | 10600 bytes |
SHA-256: 7b709f19f2f9af77c9fb448895a989291f9646e3b1a80bf4dadea1be4e2f1240 |
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