Malicious PDF — malware analysis report

Static analysis result for SHA-256 d75fde91b7dc61be…

MALICIOUS

PDF

53.3 KB Created: 2021-09-08 20:15:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: d6fa1a4714a84fd5275da6c1c280940c SHA-1: 692c1e423f4bacd3e762a3f1b05114b32a81012b SHA-256: d75fde91b7dc61be7ea1b44f6d17ee70c5b5b2b0d307f57cedb2e53bbe2b939b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8399

Heuristics 4

  • 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
  • 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 http://beta-rc.com/upload/files/3769326585.pdf In PDF document text
    • https://crmsaas.dswip.com/ci/userfiles/files/59025782479.pdfIn PDF document text
    • http://rothemtour.com/FileData/ckfinder/files/20210902_D7328657C9A68028.pdfIn PDF document text
    • http://permanentnimakeup-brno.cz/userfiles/files/fopekorujuwil.pdfIn PDF document text
    • https://geneolock.com/locktactyuma/userfiles/file/bemapaduvojutinaka.pdfIn PDF document text
    • http://pnmanagementsolutions.in/uploads/losemowexosofejidesoge.pdfIn PDF document text
    • http://taxiluzern.ch/khurasan/userfiles/files/feniviwiz.pdfIn PDF document text
    • http://directopinion.biz/uploads/FCK_files/file/rowisewejanivoruwavaw.pdfIn PDF document text
    • http://speakingaboutnetworking.com/ckfinder/userfiles/files/zozifepedemol.pdfIn PDF document text
    • http://scarpatti.com/files/91563475124.pdfIn PDF document text
    • https://houstoncoinshow.org/FCKeditor/file/71131096381.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135203354ad4---popexova.pdfIn PDF document text
    • http://pickup-ws.com/userfiles/files/bujomubeviselusojowuziter.pdfIn PDF document text
    • http://brilliantsolarpaneling.com/userfiles/file/94412716036.pdfIn PDF document text
    • http://idevicesplus.nl/app/webroot/files/userfiles/files/57947682333.pdfIn PDF document text
    • https://cafesca.mx/ckfinder/userfiles/files/53717365979.pdfIn PDF document text
    • http://www.atccs3.it/atccs3/fckeditor/editor/ckfinder/userfiles/files/kewubimapigipudaxifo.pdfIn PDF document text
    • http://nhatminhtrading.vn/app/webroot/uploads/files/menozevobusujifojapumi.pdfIn PDF document text
    • http://closehorses.com/userfiles/file/kuwuwidixenawoxifisolex.pdfIn PDF document text
    • https://soenen-pneus.com/upload/file/zexerusapudewafunojujev.pdfIn PDF document text
    • http://lecostationery.com/files/file/88519646382.pdfIn PDF document text
    • http://agendatourvietnam.com/hinhanh/file/wazirasajofazakonujizovul.pdfIn PDF document text
    • https://berbagiangka.com/contents/files/11212709189.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/ue4fog2jgvke4c23ljto2llrmu/gefumujanubazoguvonizo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=premature+mortality+in+autism+spectrum+disorder+pdfPDF link annotation