Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e6371b22d08b0b8…

MALICIOUS

PDF

65.2 KB Created: 2021-02-24 20:24:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8b8d6f81d66fa5801b26ba369aa37bab SHA-1: 9aa8d17b01a88e7d3e1368605def72ec26fd3bb1 SHA-256: 6e6371b22d08b0b89478a9674ba05d2dfb4e6f556674ecb8d3c4cf77fd69928a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=how+do+you+restart+a+samsung+refrigerator PDF link annotation
    • https://cdn.sqhk.co/sedazozesufu/g2gjahd/foxy_and_mangle_wallpapers.pdfIn PDF document text
    • https://cdn.sqhk.co/xezexasag/B7wgjje/barbecue_ribs_on_charcoal_grill.pdfIn PDF document text
    • http://siankaanmexico.com/94236457694pscb1.pdfIn PDF document text
    • https://cdn.sqhk.co/wepunajexiju/aTFxMP2/yellowstone_cast_season_3_episode_9.pdfIn PDF document text
    • https://cdn.sqhk.co/xaselavub/djgjafC/jizexuraben.pdfIn PDF document text
    • http://vashastrahovka24.ru/anticoagulantes_orales_mecanismo_de_acciond0kdt.pdfIn PDF document text
    • http://fozakewugumomig.22web.org/sowudoruvenuvafinine.pdfIn PDF document text
    • http://covid-19online.site/22105621789gk6sg.pdfIn PDF document text
    • http://trenketo.buzz/triumph_bonneville_t120_aftermarket_exhaustdqnd4.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/1igpjgV/dragon_scroll_mtg.pdfIn PDF document text
    • http://rabejagoruwobol.66ghz.com/jadagegeveni.pdfIn PDF document text
    • https://cdn.sqhk.co/zevinikiwi/jjbiiSx/sutex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://memirilili.epizy.com/94419806104.pdfIn PDF document text
    • http://bunopudo.rf.gd/html_responsive_login_page_template.pdfIn PDF document text
    • http://zejagusip.rf.gd/poxera.pdfIn PDF document text
    • http://rokidibamufoduv.epizy.com/bowmasters_hacked_apk.pdfIn PDF document text
    • http://gebejofokim.rf.gd/75095215724.pdfIn PDF document text
    • http://guradewididexep.epizy.com/adwords_fundamentals_certification_exam_answers.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_off0000c72f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC72F 5348 bytes
SHA-256: 7b962949f3a6196104e2570a08e5a191c92722972a87127729dae7fb702d4f18
font_01_sfnt_off0000d95f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95F 8892 bytes
SHA-256: 8d029b7c900f667488e985a848779686f4039928ac9cc79f0a69e6d79c7762f6