Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e939082291a34c1…

MALICIOUS

PDF

71.5 KB Created: 2021-02-09 20:54:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 098456b6d3020c13fe6f40a78cc8cfca SHA-1: 05d489f22d8fd17b2bb99569b60d19a5b6991f3e SHA-256: 4e939082291a34c1567f70135c7041713e49a9fdc588dbf2fd0cd69c844fe8b2
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=quiz%20on%20famous%20indian%20personalities%20with%20answers PDF link annotation
    • https://cdn.sqhk.co/posojuvapono/hbIhguX/jufibamaginozedu.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/difjaje/lijujazonesezunupof.pdfIn PDF document text
    • https://cdn.sqhk.co/tosuwukiwate/cahgjAu/crazy_threads_online_shopping.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/MxijibX/best_way_to_learn_javascript_online_free.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/xabalaru/bounce_ball_games_free.pdfIn PDF document text
    • http://sulumasofip.epizy.com/show_me_joe_tex_sheet_music.pdfIn PDF document text
    • http://gusutawidike.epizy.com/99223178599.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/50281968018.pdfIn PDF document text
    • http://kuzebelinebofe.epizy.com/tourism_holdings_limited_annual_report_2017.pdfIn PDF document text
    • http://tutivute.epizy.com/windows_7_crack_iso_direct.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/riwime.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/26087794984.pdfIn PDF document text
    • http://rafesule.rf.gd/compulsory_acquisition_guidelines_nsw.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/making_arrangements_worksheet.pdfIn PDF document text
    • http://parimafilifupev.rf.gd/solving_quadratic_equations_practice_test_answers.pdfIn PDF document text
    • http://tupemovon.rf.gd/92542147040.pdfIn PDF document text
    • http://nufudojor.epizy.com/49524223931.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/xorejusimoganivepepugipi.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_off0000d98c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98C 5484 bytes
SHA-256: c90346946562f5a86f1feb3ccefa8e1f695bd06218e71977e2f99b0466f9ab6c
font_01_sfnt_off0000ec24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC24 10804 bytes
SHA-256: 5532cea7f3ac3ceb29ab960b5540f7c234362103f57027a8a0c59301bc37776a