Malicious PDF — malware analysis report

Static analysis result for SHA-256 e583f1f9bf0b92b7…

MALICIOUS

PDF

69.7 KB Created: 2021-02-27 08:45:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 868ff11968f837cab1075d3c5d5ac0e5 SHA-1: 3de4dfa76f7f0bbdfd601b15fa02883343cb3e82 SHA-256: e583f1f9bf0b92b72de62f6efbf17ca9f4a9912f2339b89959b94f4ff52819ba
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://xajibur.ru/wix?keyword=introduction+to+optics+pedrotti+2nd+edition+pdf+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4425501/normal_5ffcb535bbad2.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/zjteUhe/kiguwolatezi.pdfIn PDF document text
    • http://babixuxuw.22web.org/74494962261.pdfIn PDF document text
    • https://cdn.sqhk.co/jerowerar/ffgikpk/idle_world_mod_apk_unlimited_energy.pdfIn PDF document text
    • http://s-tochka.ru/how_to_rig_a_fishing_line_for_murray_codwbdhx.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/73635275597.pdfIn PDF document text
    • http://womivakated.iblogger.org/evanescence_fallen_album_free.pdfIn PDF document text
    • http://momentshop.space/renabozri4.pdfIn PDF document text
    • http://vevaxogejaz.scienceontheweb.net/64564370490.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/wolina/delete_a_twitter_account_android.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/adept_english.pdfIn PDF document text
    • http://gesasodalunaka.epizy.com/annotation_problem_in_bioinformatics.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/subtraction_using_hundreds_chart_worksheet.pdfIn PDF document text
    • http://lebekuwawelu.epizy.com/photo_editor_collage_maker_pro_apk_mod.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/is_the_stock_market_open_new_years_day_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/react_code_formatter_component.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_off0000d4e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E7 5312 bytes
SHA-256: f1fc97b5024586f0be1cad8f0602de0e9fa5d19c708139d52685484b875843e9
font_01_sfnt_off0000e719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE719 9904 bytes
SHA-256: c22e30f6feb49d5d9056452285929c6d68de7aafcd115372ce1c66e51d3df47a