Malicious PDF — malware analysis report

Static analysis result for SHA-256 6481ef95aa199811…

MALICIOUS

PDF

75.5 KB Created: 2021-02-27 14:49:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 3067ab323bd38926440952f6f9205f81 SHA-1: dce0d0a7a07536038c75cc1e9e17542f2f93688c SHA-256: 6481ef95aa199811d9174036b4918fd82f750ab91b96d221c50ec684707b8c21
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • 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://baarspo.ru/strik?utm_term=best+portrait+photography+lenses PDF link annotation
    • http://gisoboxizaza.mygamesonline.org/libros_apocrifos_enoc.pdfIn PDF document text
    • https://rakonudiboxenej.weebly.com/uploads/1/3/4/8/134874851/jajele.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/how_to_find_the_value_of_n_in_binomial_distribution.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/texas_instrument_ti-83_plus_wont_turn_on.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408476/normal_60340da2491cf.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/hjjaicd/freeway_roc_da_mic_lyrics.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/rapavinina.pdfIn PDF document text
    • http://gosoxegekiri.mywebcommunity.org/sharepoint_workflow_2013_tutorial_for_beginners.pdfIn PDF document text
    • http://bometaximom.scienceontheweb.net/which_is_the_best_smartwatch_under_10000.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/rapida_pressure_cooker_instruction_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414500/normal_60394d32026aa.pdfIn PDF document text
    • https://zezuwosizu.weebly.com/uploads/1/3/4/4/134459619/revotu-bagabusudopaze.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411702/normal_5ffad463215b8.pdfIn PDF document text
    • https://noserosajegupa.weebly.com/uploads/1/3/1/4/131453720/paroxujozofal_zenisebegig_wesife_darisosuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_600a696d44ddb.pdfIn PDF document text
    • http://tosefabebiribow.scienceontheweb.net/world_map_blank_outline.pdfIn PDF document text
    • http://gajonedorebuko.mywebcommunity.org/fujitsu_scansnap_s1300i_wired_usb_document_scanner.pdfIn PDF document text
    • https://fuvedomuwipiw.weebly.com/uploads/1/3/1/6/131636935/xasapiwaxafatozel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kedisijusa.onlinewebshop.net/jukoxawimoze.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/94348670720.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_off0000eca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA7 5232 bytes
SHA-256: 40ccd94fe74b0f9dab0392a9d99771d9f61ba762e106891ae43abe7075d9590a
font_01_sfnt_off0000fe7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7B 9964 bytes
SHA-256: f9e4d9fe06e4311ce9323b7223fd8809923e890ddec2f9b42c8d24b9ccc99243

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