Malicious PDF — malware analysis report

Static analysis result for SHA-256 806160e35be852d9…

MALICIOUS

PDF

73.6 KB Created: 2021-01-21 07:01:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8eb238ffa92ba765d47f96b6ea87b593 SHA-1: 75fef14192bc3818d891a15586b9887a92d69836 SHA-256: 806160e35be852d9117d3836da5ae33875e80c73b08cadea130e7daf324fd926
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://seumenha.ru/wb?keyword=dancing%20ballet%20music PDF link annotation
    • https://cdn.sqhk.co/gixejefi/igggiij/the_solar_system_planets_in_order_of_size.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzinipaz/bnjb8Et/between_the_lines_book_nikki_grimes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476285/normal_5ff6886721aa3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415322/normal_5ff5eb087746a.pdfIn PDF document text
    • https://cdn.sqhk.co/xonoguduzob/gggej9K/song_association_game_quiz.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/suzujewa/87936711561.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/for_honor_kensei_rework_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/47352234148.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/mitoragedorifew.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/tuxogozugilutalulixe.pdfIn PDF document text
    • http://jukikusikodopom.epizy.com/governance_and_public_policy_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/corel_videostudio_ultimate_x10_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/40439206384.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/guess_who_printable_character_sheets_star_wars.pdfIn PDF document text
    • http://poxemibusap.epizy.com/90832612702.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_off0000e2f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F4 5160 bytes
SHA-256: 6834a1cecab4b0812caea685afa2b6ec71d5ecbd2ca7d0b0941fb0873dfbc3b3
font_01_sfnt_off0000f47c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47C 11112 bytes
SHA-256: 6224b25d0c67b7c099c18ae2bd84342685f607dbd42172297d09d51b25cad9e4