MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious content. The presence of numerous external URIs, many pointing to disposable hosting and employing UTM parameters, suggests a link farm designed to redirect users to malicious sites. The primary IOC is the URL 'https://zajinet.ru/strik?utm_term=black+and+decker+dustbuster+charger', which is likely used to serve a phishing page or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://zajinet.ru/strik?utm_term=black+and+decker+dustbuster+charger PDF link annotation
- https://cdn-cms.f-static.net/uploads/4443325/normal_602efbe9c301a.pdfIn PDF document text
- https://cdn.sqhk.co/sujubowip/ftMhcij/hide_and_seek_story_of_dorothy_ios.pdfIn PDF document text
- https://cdn.sqhk.co/megeveze/jehfd2E/buku_akselerasi_fisika_kelas_11.pdfIn PDF document text
- http://sunufosabupes.scienceontheweb.net/navy_writing_desk_with_drawers.pdfIn PDF document text
- http://koxivesuvif.mypressonline.com/soalan_bahasa_arab_tahun_2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369173/normal_602e2071d4285.pdfIn PDF document text
- http://xatakafigudu.getenjoyment.net/vosotamuxotikogufulupa.pdfIn PDF document text
- https://cdn.sqhk.co/kovezozeseg/YImzif4/zixariba.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366374/normal_5fecaff589cda.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4505096/normal_6036c19e4cf27.pdfIn PDF document text
- http://kukogekaw.sportsontheweb.net/blueprints_psychiatry_6th_edition_free_download.pdfIn PDF document text
- http://gupirigugorixuf.sportsontheweb.net/jefezivupupikusolakuno.pdfIn PDF document text
- https://cdn.sqhk.co/pimupigedu/kaSheaA/mino_monsters_2_mod_apk_offline.pdfIn PDF document text
- https://cdn.sqhk.co/wogefosa/ic8Fhhr/rush_hour_board_game_instructions.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387412/normal_5fca8765ae65f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://551f0ad2-75d1-4009-b90b-2f3e3e20230b.filesusr.com/ugd/c2bf0a_990b1a8c03e7465596d5276bc209d4a5.pdf?index=trueIn PDF document text
- http://kewevagisugimuw.onlinewebshop.net/feira_da_agricultura_familiar.pdfIn PDF document text
- https://bf130ee1-1463-4c69-9604-1b23772ced92.filesusr.com/ugd/b4609a_3faa3f9711bc4ed48ddc8a59ac22cdfa.pdf?index=trueIn PDF document text
- http://zijurape.atwebpages.com/link_building_tutorial.pdfIn PDF document text
- https://s3.amazonaws.com/luramamelolem/46732635118.pdfIn PDF document text
- https://64b67c6e-fbbd-4787-add8-9ed3e274c95c.filesusr.com/ugd/eb6612_c9f277ad00c04de1ae5b52ecaa570dfa.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rilexazejuzovep/speed_math_addition_worksheets.pdfIn PDF document text
- http://lazuletezofik.onlinewebshop.net/vuwomifomenapivuxejiza.pdfIn PDF document text
- https://s3.amazonaws.com/leteraxewe/50414934253.pdfIn PDF document text
- https://e2a3f85e-3ce8-4c76-99a2-e63219cad5ad.filesusr.com/ugd/473d25_4ceb5e6ae0b24a9fa1ce9989ff7519a0.pdf?index=trueIn 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_off0000e3b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3B7 | 5456 bytes |
SHA-256: 43fa8feb10ec01f3f20b75a4d24babaf48bc5fde0c570180d23474ad53d5aeb9 |
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font_01_sfnt_off0000f63d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF63D | 10700 bytes |
SHA-256: 835be45f2b7950136705f848043f917ef893ef69ef86c1c6036533226d5e138e |
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