Malicious PDF — malware analysis report

Static analysis result for SHA-256 63a5046c1c5ba014…

MALICIOUS

PDF

70.7 KB Created: 2021-02-05 23:46:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bf6b9a835e5ebe8349484432db3e1afe SHA-1: 12e7f402648293e0439ac3b0e35626a3cddb2e70 SHA-256: 63a5046c1c5ba0146fcd721e9fc14c94e98fe9e168998ed6d287a221906f9c55
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/wb?keyword=introduction%20to%20archaeology%20textbook%20pdf PDF link annotation
    • http://guwivup.iblogger.org/bhairava_tamil_movie_video_songs.pdfIn PDF document text
    • http://appeal-ig.com/11360711302xjhf7.pdfIn PDF document text
    • http://watertea.space/kalvi_express_10th_social_book0hrn7.pdfIn PDF document text
    • http://metazoaapc.fun/931657935956dhrw.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/lejivugeleguwod/kellogg_one_year_mba_employment_report.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/52472857909.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/logstash_index_template_example.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/fairfax_county_police_traffic_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/pozonexu.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/service_provider_html_website_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/whatsapp_latest_for_nokia.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/formule_pour_calculer_le_pourcentage_sur_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/wolawatin/34346545492.pdfIn PDF document text
    • http://morisexisaxewa.epizy.com/on_vous_tiendra_inform_en_anglais.pdfIn PDF document text
    • http://regujivabi.rf.gd/pimivemara.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_off0000d6af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6AF 5548 bytes
SHA-256: b4b4ddc9ae2fe959612889bfaeea7dd32a538c3735788e6cfe81440591640ac1
font_01_sfnt_off0000e994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE994 10708 bytes
SHA-256: 99ca3e8c3d503be0a692a82d070a10d52ec83fc339057df603449c5dc330424f