Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac425319d5ace4d8…

MALICIOUS

PDF

74.9 KB Created: 2021-02-24 21:33:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0a554095bd54acd3fe67dcd69bf75beb SHA-1: e73cc57fdf9d029dd6d46106930db39048dc0b99 SHA-256: ac425319d5ace4d89c316e326b85c9a6da1b7f9a67900a4828b3544aa505f7cd
126 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
  • 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://leonvi.ru/123?utm_term=echo+and+narcissus+story+video PDF link annotation
    • http://dressnbuy.com/math_worksheets_pre_algebra_word_problemscw3ej.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/hbjgmKe/fujapizadonevinorojiri.pdfIn PDF document text
    • http://lnstagram-blue-ticks.com/35364525097zyghp.pdfIn PDF document text
    • http://begdas.fun/divimo0nifz.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/HwOVsge/afk_arena_gift_code_august_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/mamabukalom/ogKCgff/jariwexerukepuzufaruzadu.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/GWKgfOT/goal_live_scores.pdfIn PDF document text
    • http://azakalaza5.xyz/chidananda_roopah_shivoham_shivoham_songbpohx.pdfIn PDF document text
    • http://options.expert/jexumedu5xhh5.pdfIn PDF document text
    • https://cdn.sqhk.co/vixemujomu/jiXyAij/relaxing_music_nature_sounds_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/aPrcggI/ryan_sutter_ninja_warrior_video.pdfIn PDF document text
    • https://cdn.sqhk.co/xidupesijij/bhaRib3/76192391222.pdfIn PDF document text
    • http://neo-tp.ru/davinci_resolve_15_free_templates9cmw9.pdfIn PDF document text
    • https://cdn.sqhk.co/ramejolir/sMI6iah/ghost_hunters_full_movie_download.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/skillful_reading_and_writing_1_teachers_book79x86.pdfIn PDF document text
    • http://itali-big.space/austin_isd_calendar_2020_19qcedx.pdfIn PDF document text
    • http://bred-enligne.com/the_force_awakens_bookxvwp9.pdfIn PDF document text
    • https://cdn.sqhk.co/vadezewe/fOjaher/72522692687.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE79B 5116 bytes
SHA-256: 8b4a4e029c44bc60a5523ad349e08850de786d1f617561755ff58aafbef51a47
font_01_sfnt_off0000f908.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF908 11216 bytes
SHA-256: ef4662a08e6628e8e75245a46eec821e3b1b8c7427f346a608e72dfc5def2d90