MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by ClamAV and an ML classifier as malicious, containing numerous external URIs. The document body, though heavily obfuscated, suggests a lure related to an 'english worksheet'. The presence of many links, including one to 'kuzutuzo.ru', indicates a phishing or malware distribution attempt, aligning with the Spearphishing Attachment technique.
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://kuzutuzo.ru/wix?keyword=this+is+me+english+worksheet PDF link annotation
- http://gupirod.iblogger.org/how_deep_is_town_lake_in_austin_tx.pdfIn PDF document text
- http://gagogepatajebe.medianewsonline.com/sylvia_plath_quotes_about_writing.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473410/normal_5ff97b7b6d47f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481667/normal_600d99130f050.pdfIn PDF document text
- http://nenegifivujaxu.mypressonline.com/58917848949.pdfIn PDF document text
- http://nuzadovokebin.iblogger.org/dc_circulator_route_map.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450721/normal_5fcf74ba2bee1.pdfIn PDF document text
- http://lorakuze.sportsontheweb.net/oster_18_quart_roaster_oven_walmart.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462339/normal_603a02d4879dc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411714/normal_6014a034e099d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384652/normal_60298a801f596.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445128/normal_603d634105367.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387806/normal_5ff39c9dc83ae.pdfIn PDF document text
- http://bobatukuxoto.iblogger.org/autocad_2015_crack_installation_guide.pdfIn PDF document text
- http://pemirok.22web.org/bigowoximevevate.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://rifovedukuj.epizy.com/wow_archaeology_guide_1-_600.pdfIn PDF document text
- http://bokakemipik.epizy.com/cholo_movie_song.pdfIn PDF document text
- http://noporotosodapo.epizy.com/solegomosozozi.pdfIn PDF document text
- http://nevigewiba.epizy.com/gibbs_reflective_cycle_template_toolshero.pdfIn PDF document text
- http://selobotugiw.rf.gd/lewins_genes_xii_12th_edition_free_download.pdfIn PDF document text
- http://nibopinalilabaj.onlinewebshop.net/how_to_watch_tidying_up_with_marie_kondo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72321b4f-f697-42db-8805-d3f44532415c/mike_meyers_comptia_a_book.pdfIn PDF document text
- http://rurebafib.onlinewebshop.net/how_can_you_make_him_fall_in_love_with_you_again.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ba53e1e9-8fe2-4b79-8115-58bcca97483c/chamberlain_liftmaster_3280_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0e03986-7e6f-4501-81f1-f499d38f440c/jeu_de_carte_personnalis_plusieurs_photos.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_off0000ea13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA13 | 4996 bytes |
SHA-256: cc8a86bfd506ec86e8e1150d460057e56d0db295e455d42e24ce8f387e20b65c |
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font_01_sfnt_off0000faf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAF9 | 10472 bytes |
SHA-256: 348b24be7aaaf663ae1094f922790aaaef96e258ca1d295c31f7de381c5e1708 |
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