Malicious PDF — malware analysis report

Static analysis result for SHA-256 4210fc9cf9e2bbd8…

MALICIOUS

PDF

64.9 KB Created: 2021-01-24 23:52:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 30758595bc3c5d544ddfd0cb3fd0c1b9 SHA-1: f57f979de168d58b0a3203601e146fa0d037ef9b SHA-256: 4210fc9cf9e2bbd82625b5379f17eb774d78d2f33cc24aacf3b150b45a115a93
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wb?keyword=soap%20cutter%20amazon PDF link annotation
    • https://cdn.sqhk.co/jozazixefuf/jhdKRgd/90548785566.pdfIn PDF document text
    • https://cdn.sqhk.co/busanurutar/1jcvOi2/school_management_system_with_php_open_source_project.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500447/normal_5feb99c07b03b.pdfIn PDF document text
    • http://ijmalan.xyz/ruvixejorzofh4.pdfIn PDF document text
    • http://rodsfish.club/old_time_country_gospel_music_videos8dv1r.pdfIn PDF document text
    • https://cdn.sqhk.co/sofopiro/ibcyhgu/download_english_songs_love_me_like_you_do.pdfIn PDF document text
    • https://cdn.sqhk.co/zujumatatub/whcGNsd/catan_universe_online_tournaments.pdfIn PDF document text
    • https://cdn.sqhk.co/fudamewojaf/Shgsja3/prison_escape_game_ps4_co_op.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488339/normal_5fc892ca17143.pdfIn PDF document text
    • https://cdn.sqhk.co/vixuzemabad/hcghKew/dapisovofo.pdfIn PDF document text
    • http://jakartapro.xyz/bizipanatodefogi48gxs.pdfIn PDF document text
    • http://reduslim-italiaufficiale.site/dead_soul_tribe_someday1vt1m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422145/normal_5fef0d260434d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482619/normal_60084dc27f925.pdfIn PDF document text
    • https://cdn.sqhk.co/fiporalisu/wieCrPF/dajabaxow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370319/normal_5ff918b6388ad.pdfIn PDF document text
    • https://cdn.sqhk.co/muxigatatini/83jhYG6/puxatugugi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pewaxoxepizus.rf.gd/54592910173.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_off0000c42f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC42F 5024 bytes
SHA-256: c28b73a917e168b7f9ad13e21ebed57326d2b093035c494d8ddd616d5ef96eb5
font_01_sfnt_off0000d537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD537 9948 bytes
SHA-256: 75c2570f446f731e36f2856cfacc93cb80f766e33feb767f4a22f1c14d5ae3c7