Malicious PDF — malware analysis report

Static analysis result for SHA-256 08dfe3e7b17c52af…

MALICIOUS

PDF

74.5 KB Created: 2021-01-20 18:58:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e530d62c919628dd9f8eae58d317204f SHA-1: bd2292af17561e40980abb7d48e969891037dbd0 SHA-256: 08dfe3e7b17c52af6873bb13fc20f410bc8a64573911fa88d89a6740b10dd958
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://baarspo.ru/wb?keyword=dog%20fighting%20rings%20breeds PDF link annotation
    • https://cdn.sqhk.co/xomakonezema/ljiZLhj/dining_room_chair_covers_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/gdEhfhg/13618699620.pdfIn PDF document text
    • https://cdn.sqhk.co/digubamot/PghMCZ2/android_phone_change_screen_lock_password.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447658/normal_5fd7cd8e766be.pdfIn PDF document text
    • https://site-1171384.mozfiles.com/files/1171384/nikibonofob.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/gijighP/build_a_bear_locations_in_utah.pdfIn PDF document text
    • https://cdn.sqhk.co/gogojiranat/dp5CjjB/force_and_destiny_game_master_s_kit.pdfIn PDF document text
    • https://cdn.sqhk.co/zojisixu/zZJggaq/sonomu.pdfIn PDF document text
    • https://cdn.sqhk.co/jogekiluse/igigjAT/zuzedexamokiradikekeba.pdfIn PDF document text
    • https://cdn.sqhk.co/jumupebuvi/Yg9kj6U/bcit_vancouver_campus.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/eRvhdif/bubble_tea_game_online.pdfIn PDF document text
    • https://cdn.sqhk.co/nosuterib/jhbGPze/snowflake_software_stock_symbol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450864/normal_5fb89e447cf08.pdfIn PDF document text
    • https://cdn.sqhk.co/dedenijikal/hgc0vPg/best_slots_games_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/tumupowe/iIuXtgf/electric_circuits_nilsson_10th_solution_manual.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_off0000e92b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE92B 5064 bytes
SHA-256: f5fdecb4c955e98cecc961e2030e200938b83e0dfc980963daa132b30f077cd2
font_01_sfnt_off0000fa69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA69 10328 bytes
SHA-256: d8069c24bbd9feb30b60ac57ba9029658d0e35c2db7a016d76fc3bf1fffe2567