Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee6fc797e525b75…

MALICIOUS

PDF

74.0 KB Created: 2021-02-09 17:30:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 238cea73fade35122d88c29f26f85074 SHA-1: 380fa1e50264d1d676ddc32cad2d7aff8168e634 SHA-256: cee6fc797e525b759efd251c0e19f0d86d64b20e030bafbcaa767f67211e14dd
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://jacksth.ru/wb?keyword=transformer%20bushing%20oil%20level PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388428/normal_5fed0b0f5bff7.pdfIn PDF document text
    • http://tiktokhd.design/fila_disruptor_ii_women_s_size_guide00zrk.pdfIn PDF document text
    • https://cdn.sqhk.co/xororasomig/Ctihijk/amazon_prime_video_roku_pin.pdfIn PDF document text
    • http://zelopaqq.xyz/74842569803uy3ju.pdfIn PDF document text
    • http://zoo-taxi.site/xonoga0jag.pdfIn PDF document text
    • https://cdn.sqhk.co/xufaribo/2nrh1kn/rubojabigo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478950/normal_601410ff440ef.pdfIn PDF document text
    • http://vas-rem.ru/67152608826kz59d.pdfIn PDF document text
    • http://zekoselu.22web.org/tangled_movie_in_tamil_dubbed_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501993/normal_5fded79e7afea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486563/normal_5fdf958cbf701.pdfIn PDF document text
    • http://letnesil.xyz/gebalmzqqf.pdfIn PDF document text
    • https://cdn.sqhk.co/fopeziriga/C7jcjhi/866540917.pdfIn PDF document text
    • https://cdn.sqhk.co/gukokefa/duihheN/viral_videos_2018_south_africa.pdfIn PDF document text
    • http://aarbuz.space/fasutuc7pk1.pdfIn PDF document text
    • http://vitezozikupu.iblogger.org/physics_distance_and_displacement_worksheet_answers.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/baxunaf/was_heit_das_wort_formulierung.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/calculus_chapter_2_study_guide.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_off0000e4b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B0 5332 bytes
SHA-256: b511267fae16840caaddfd5844f42ad21f2b77370877be4bdf718cd47828ec8e
font_01_sfnt_off0000f6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AC 10644 bytes
SHA-256: b963b6a15964b397c28a9190f3cf74985fde7bcee29d69f6e26551214b13a9ac