Malicious PDF — malware analysis report

Static analysis result for SHA-256 471f9b4691971f7c…

MALICIOUS

PDF

76.7 KB Created: 2021-03-03 10:45:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 52cdcfa55fcdff05b6abfa2b2e46c3fc SHA-1: 5a7224f642d2cebeb2675db1ee73bb52ac9f048a SHA-256: 471f9b4691971f7c9cde028180ece3b81a24810afbba502df5df6c411b21feec
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://fokemale.ru/award?keyword=lexus+is+350+f+sport+for+sale+2015 PDF link annotation
    • http://grandov.pro/curso_de_ingles_avanzadofjx5r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380210/normal_6036cb4d9ce09.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/measuring_angles_6th_grade_worksheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451369/normal_5fcf0fd793800.pdfIn PDF document text
    • https://cdn.sqhk.co/livoluxuwad/glQjjFo/dragon_ball_z_abridged_drinking_game.pdfIn PDF document text
    • https://cdn.sqhk.co/wiradimabid/gdloicE/33466548799.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444850/normal_60355efd0d8f8.pdfIn PDF document text
    • https://cdn.sqhk.co/jagibuvat/id0uhdK/top_digital_marketing_companies_in_kerala.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/bubimiro.pdfIn PDF document text
    • http://reassurez-moi-fr.info/como_descargar_stickman_rope_hero_para_pc3in2w.pdfIn PDF document text
    • http://dotavulilego.mypressonline.com/echo_srm_230_carb_adjustment.pdfIn PDF document text
    • https://cdn.sqhk.co/xokebuzizo/aihwdic/splendor_in_the_grass_movie_cast.pdfIn PDF document text
    • http://3bki.ru/bgp_juniperbuei8.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/ghcmPif/32194378224.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383567/normal_5fede39189218.pdfIn PDF document text
    • http://itrom.fun/how_to_learn_basic_grammar_in_english994fz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387821/normal_5fcc3eca6213b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bivojeda.atwebpages.com/my_samsung_tv_wont_turn_on_and_no_red_light.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_off0000ef93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF93 5520 bytes
SHA-256: 1fdeefc30ad1b22dd2e02a1652dc9219ff6c6f1eaa02852ef4b7b1874b8f0828
font_01_sfnt_off00010279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10279 10368 bytes
SHA-256: 9ccf0942c44de94bcb4e3ccd580cbffc0447c6c0e46a6c53f5453cf0e1376468