Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b741ee91c30d95…

MALICIOUS

PDF

74.7 KB Created: 2021-01-26 07:48:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-07-02
MD5: 5d12135211ab845983f85386338449d2 SHA-1: 875aa523ca8c8d4771dd2024596469130a702618 SHA-256: 09b741ee91c30d955ba311ffcad98f1c3656caa6d7f96b603dc715e96491b417
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffking.ru/123?utm_term=colourpop+gift+card+coupon In PDF document text
    • https://cdn.sqhk.co/kawinojos/aOnhahh/jesikamopumekupi.pdfIn PDF document text
    • https://cdn.sqhk.co/sorubajuzoxe/ihdgijb/forarisilafomulegezezili.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/ihagihb/reversible_lanes_are_marked_with.pdfIn PDF document text
    • https://cdn.sqhk.co/doxelatofon/QjjkNhh/62586266541.pdfIn PDF document text
    • http://sunny-web.ru/zitexewawagalotouw26u.pdfIn PDF document text
    • https://cdn.sqhk.co/kawinojos/bnFbno6/53768339499.pdfIn PDF document text
    • http://apsdd54gfv.xyz/crosswords_easy_printable_free6c9vb.pdfIn PDF document text
    • http://prodit.space/zututudibutiria1czh.pdfIn PDF document text
    • https://cdn.sqhk.co/madeparev/8iaDFgg/mewe_stock_on_robinhood.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/a1hehbs/ailment_space_pixel_dungeon_2.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxesojogugu/amghpMr/dune_battle_for_arrakis_download.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/ahaib7L/newivipaxop.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/dobesogum/greater_than_less_than_worksheets_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/california_secretary_of_state_form_si-_550a.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/psychedelic_trance_free_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/89394631650.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/audit_report_of_infosys_company.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/lagu_kartonyono_medot_janji_dj_koplo.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_off0000e82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82D 5048 bytes
SHA-256: 2d87ca54bef7accf01e06e4ffb85b923978a06ea90649f730e44b39d8e5d0ab0
font_01_sfnt_off0000f96e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96E 10680 bytes
SHA-256: 6e9af5c3436426c753ef6a5632ba7787742eb0778aeb5a0615b15dd54c534958

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