Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f020c1fa1fde948…

MALICIOUS

PDF

50.3 KB Created: 2021-03-01 20:46:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f9a3e65879d3b67e03fa2fbb59477f09 SHA-1: 2324c903df29f35c1968d2bc9910a457feca2d53 SHA-256: 4f020c1fa1fde9487f70aaea1c459e4f42c7734c42ae62a5c47c861b3eea5459
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.6779

Heuristics 4

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://soxebez.ru/award?keyword=britax+car+seat+stroller+combo+target PDF link annotation
    • https://kaxogirigajel.weebly.com/uploads/1/3/4/6/134611066/ed3354571c.pdfIn PDF document text
    • http://wetiludivarag.scienceontheweb.net/juego_de_tronos_libro_1_paginas.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/cR696ig/grey_cabinets_with_different_color_island.pdfIn PDF document text
    • https://dufubixapitosig.weebly.com/uploads/1/3/4/5/134503348/aff798.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389571/normal_5fd725a05544e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495065/normal_6007204a18b0a.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/h1hfTha/new_mod_among_us_for_minecraft_java.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/Xig3Mgh/megamind_soundtrack_imdb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390074/normal_5fffc32300f0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_6029dc36516c8.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/gthjhem/ticket_to_ride_card_game_review.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/wegetovif.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/ffxiv_airship_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/alberta_county_map.pdfIn PDF document text

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