MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a significant number of external links, many pointing to disposable hosting, indicating a link farm or SEO manipulation tactic. The presence of a malicious URL (zajinet.ru) and the ML classifier flagging the PDF as malicious strongly suggest a malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the PDF structure itself is indicative of a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://zajinet.ru/strik?utm_term=whitfield+quest+pellet+stove+auger+motor PDF link annotation
- https://kevavabine.weebly.com/uploads/1/3/1/4/131406582/9456846.pdfIn PDF document text
- http://kajuzumanaz.sportsontheweb.net/barbituricos_efectos.pdfIn PDF document text
- http://sevowina.medianewsonline.com/hot_springs_spa_heater_not_working.pdfIn PDF document text
- http://rajajime.mypressonline.com/doretasuzidofiwetorukebu.pdfIn PDF document text
- https://tuvajidemagik.weebly.com/uploads/1/3/2/6/132681445/lepojafukava.pdfIn PDF document text
- http://xorabawik.medianewsonline.com/xewuxixajebotugepuditopo.pdfIn PDF document text
- http://jefuvumerusew.getenjoyment.net/cours_d_assistance_de_direction.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/0c61d5c9-0dae-4cb0-8bbb-edc8ab9827a6/sylvia_plath_poems_selected_by_ted_hughes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dd878263-ce08-4d32-8a4f-33ee8a3fcb04/how_do_you_program_an_rca_remote_control.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0a2e244-fc40-4ca6-a716-28783d3eefcb/principales_problemas_de_salud_publica_en_mexico.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c5ef3367-3296-4cd5-9e9a-5adeb26af8f5/fisekenexijuduwosu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/146da064-89e1-47a6-8e46-a99eb2266d0d/vugebimovetaximoxitopu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d077bc96-9972-4811-9154-de164a4eabcd/what_is_the_role_of_a_senior_nco_in_mission_command.pdfIn PDF document text
- http://jemileti.atwebpages.com/destruccion_masiva_jean_ziegler.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/24b1b6f8-6c8b-463f-b890-f189b710a746/what_are_the_prefix_and_suffix_of_hypertension.pdfIn PDF document text
- http://rujidafedisezu.atwebpages.com/fuzapamegodegukelixe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ea4b224-4770-4852-8b06-592526159de8/power_wheels_jeep_hurricane_costco.pdfIn PDF document text
- http://jakowufa.epizy.com/24086578739.pdfIn PDF document text
- http://mibozoviken.epizy.com/badamomudifiw.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_off0000fcdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCDF | 5432 bytes |
SHA-256: d2b4c0bcae7c455eedc441b6d448501f027ed7a67023025d5be0615e89a6b209 |
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font_01_sfnt_off00010f64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F64 | 10948 bytes |
SHA-256: 7e28a49a6f0ee301c0b673a2d3eaac38a7a112db666a33e2c76aa87e37de6805 |
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font_02_sfnt_off0001349f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1349F | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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