Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb96f3a443064131…

MALICIOUS

PDF

80.5 KB Created: 2021-03-23 03:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: fbe86172e185efe6c6a53132f05988a7 SHA-1: 01fe86b9e285e4589cbb8d237113cba5afb2aae7 SHA-256: eb96f3a443064131d873486ed9f9258c6beaf3cef95d24a1a660d058f0fc5875
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of an external URI suggests the document is designed to redirect the user to a malicious site, potentially for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://golowaki.ru/strik?utm_term=denon+avr+1910+no+sound PDF link annotation
    • http://miwewumexurigan.sportsontheweb.net/kilunizilevunirakazo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389387/normal_5ff6d3b64c785.pdfIn PDF document text
    • http://tpdreport.com/xolemopzii60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489251/normal_604a7505cff54.pdfIn PDF document text
    • http://tulumiv.medianewsonline.com/web_gis_development_tutorial.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496811/normal_6031d026c3860.pdfIn PDF document text
    • http://presente-top.store/atoms_and_molecules_class_9_worksheetc10xx.pdfIn PDF document text
    • http://metazoaapc.fun/acide_sulfurique_amlie_nothomb_analyse8qdlp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450337/normal_60434c5325443.pdfIn PDF document text
    • http://dodemawaj.iblogger.org/tuxaxapegumabu.pdfIn PDF document text
    • http://fit-italy.space/98729677189s9pli.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zinudipir/visiting_card_format_for_catering.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/22945287429.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/rch_croup_info_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/revision_timetable_template_tumblr.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/73857662066.pdfIn PDF document text
    • http://davojuke.epizy.com/free_cheer_tryout_score_sheet_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/aprendizajes_clave_secundaria_educacion_fisica.pdfIn PDF document text
    • http://kirigawegugava.epizy.com/i_love_you_3000_ii_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/roregukaduxopavusa.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/tone_it_up_cinnamon_roll_protein_powder_recipes.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/wordly_wise_3000_grade_5_lesson_7.pdfIn PDF document text
    • http://buwepuxaj.epizy.com/15725392037.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.

FilenameKindSourceSize
font_00_sfnt_off0000fb13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB13 5196 bytes
SHA-256: 3ab2e0cd8071d7c38f2817095de40f4f6421ffe38ac0efc0fe02401533d9a2bf
font_01_sfnt_off00010cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CDA 11764 bytes
SHA-256: 6938b2ca97b28b48eaa370a868be75f87a724860a46aa9bbb91eb2e2f41a1519

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