Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a6cdf8b551367cf…

MALICIOUS

PDF

70.2 KB Created: 2021-02-12 07:25:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f8cee661b18897a407ff1edf60c92146 SHA-1: c02e6454497d6230a6a89da447d6e3569a5f1c13 SHA-256: 0a6cdf8b551367cfdbb05d8149cb6953042b48cdae61a9f7695b76fe02270bdb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=chapter+13+the+presidency+test+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4393883/normal_5fe278e4885e1.pdfIn PDF document text
    • http://malespw.xyz/26767226008xx28n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458615/normal_5fe85a116c30c.pdfIn PDF document text
    • http://gomijojupi.iblogger.org/bajesosebugapopoxojexez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403414/normal_5ff141d2a2f5e.pdfIn PDF document text
    • https://cdn.sqhk.co/sawowudin/KieidIg/bingo_live_tv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lajirobodogew.epizy.com/auditing_notes.pdfIn PDF document text
    • http://wasutin.epizy.com/introduction_to_cascading_style_sheets_css.pdfIn PDF document text
    • http://kemeterotef.rf.gd/agent_vinod_full_movie_720p_bolly4u.pdfIn PDF document text
    • http://xuwugufufokiti.epizy.com/9182198614.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/87334452405.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/articles_worksheets_for_grade_3.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/83784868872.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_off0000d772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD772 5444 bytes
SHA-256: 586456ad3b62d79d05e55cead85e9c9f114266369027e9e00b6c921bb60b531a
font_01_sfnt_off0000ea04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA04 9916 bytes
SHA-256: 7c87daba1738eff9ff47fc3419dd87675b933bf5875cd07ef2b0013228ac7083