Malicious PDF — malware analysis report

Static analysis result for SHA-256 58052980fc9b914e…

MALICIOUS

PDF

69.9 KB Created: 2021-02-18 15:29:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: abe9c79af0d4d6339317e5c6824cb10f SHA-1: c8ecf09824365462fa210dccf122bfabd9ce3186 SHA-256: 58052980fc9b914efeb05974fc95f2d99a729622e4cffc3029e2902b589c89c7
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://seumenha.ru/wix?keyword=panic+away+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/rakujolo/Jjcighh/best_ringtones_2020_samsung.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444114/normal_602e22973f00a.pdfIn PDF document text
    • https://serudifatu.weebly.com/uploads/1/3/5/3/135324897/sopaboroxiz.pdfIn PDF document text
    • https://xitosuwoga.weebly.com/uploads/1/3/3/9/133988858/78b144dd41d6221.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421056/normal_5ff523e902631.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/cfVhOgi/civil_war_battles_in_western_tennessee.pdfIn PDF document text
    • http://tublitalia.space/world_cup_penalty_shootout_2014_gamegq751.pdfIn PDF document text
    • http://reduslim-shop.site/sql_server_management_studio_developer_edition11lh9.pdfIn PDF document text
    • http://sparzha.club/nemijewinimasos2qxv.pdfIn PDF document text
    • https://cdn.sqhk.co/kagurase/jd1egfD/85454576246.pdfIn PDF document text
    • http://temppicture.xyz/what_are_the_requirements_for_cdl_training66m2e.pdfIn PDF document text
    • https://rolobidixogiru.weebly.com/uploads/1/3/1/6/131637372/616021.pdfIn PDF document text
    • https://cdn.sqhk.co/riwifesineji/iahdhey/94920472468.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421330/normal_5ff281351a036.pdfIn PDF document text
    • https://xopilujipuwoka.weebly.com/uploads/1/3/4/8/134886601/7125153.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/guvovigo/match_report_man_utd_vs_arsenal.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_off0000d66c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD66C 5164 bytes
SHA-256: 0a10f080bd6a7ce0ffa03f86d21c6c2aaad28daf7a969378bc9167ae59f9aeab
font_01_sfnt_off0000e829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE829 10164 bytes
SHA-256: e273f8231c885437b5a00bcc7b33d061b89a31e73decb62f457bb7e12b7998d0

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