Malicious PDF — malware analysis report

Static analysis result for SHA-256 36fdb10f84f691b7…

MALICIOUS

PDF

71.6 KB Created: 2021-02-25 19:07:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: de50ccc8f382cd13d2be1985362610bb SHA-1: 19238aa320061e71bd83a49eb17242ebaf412182 SHA-256: 36fdb10f84f691b7578096773842c1f0b1e88c2a9cf7db7dc117791304a85701
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/award?keyword=journey+to+the+west+2+full+movie+download+in+tamil PDF link annotation
    • http://pazobano.iblogger.org/canadian_visa_forms_in_ghana.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405206/normal_601916cbc74dd.pdfIn PDF document text
    • http://vofokifuzujusi.iblogger.org/98963819492.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/dnheKgg/runadefo.pdfIn PDF document text
    • https://cdn.sqhk.co/rivotoxupow/ie0hb6F/39506156253.pdfIn PDF document text
    • https://cdn.sqhk.co/matelasoguje/jjsjaje/xexovuk.pdfIn PDF document text
    • http://vukosodo.iblogger.org/wasebekiwedenoforuvap.pdfIn PDF document text
    • https://cdn.sqhk.co/sotisibu/ciiajhz/cute_backgrounds_for_computer_desktop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421624/normal_5ffca4ee9233e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479705/normal_5ff2ccfcbb523.pdfIn PDF document text
    • https://cdn.sqhk.co/baxijaxazixi/L8364gj/talking_t_rex_dinosaur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sokozujetabil.rf.gd/jipedekazaxokazosibi.pdfIn PDF document text
    • http://wojixefem.epizy.com/environmental_management_igcse_book_answers.pdfIn PDF document text
    • http://rabazefobozaxa.epizy.com/fuzobarusan.pdfIn PDF document text
    • http://lanakupi.epizy.com/lodgers_tenancy_agreement_template.pdfIn PDF document text
    • http://dereduvate.epizy.com/99936354334.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_off0000dc4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4F 5524 bytes
SHA-256: 7a76eb889453d8a7106b24682406b45c221cee6bc2cf7610e921d5e0e65922f8
font_01_sfnt_off0000ef09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF09 9980 bytes
SHA-256: 69d06b152e49ec6c7b1c9327ada5bf336be21ffabb62da4ef57cb45ed85834e4