Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde8ecc0d28576e6…

MALICIOUS

PDF

64.7 KB Created: 2021-02-18 22:04:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1e01f2a2321b39a2bd29f354a80d21df SHA-1: 73a235d9a0a55da11a2521a339fd27337d46aaa3 SHA-256: bde8ecc0d28576e6eef036f4ff4dcae072f78f1b0e269069daa287fa4c3849c3
126 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
  • 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://seumenha.ru/wb?keyword=al%20muqaddima%20ibn%20khaldoun%20pdf%20gratuit%20en%20arabe PDF link annotation
    • https://cdn.sqhk.co/wujodazera/Fjan58A/spiral_plate_stove_for_sale.pdfIn PDF document text
    • http://kemytbok.xyz/chivalry_is_dead_acoustictnkdf.pdfIn PDF document text
    • http://microdigitalmeter.xyz/54674937187yjt.pdfIn PDF document text
    • http://microdigitalmeter.xyz/1005178504hazo4.pdfIn PDF document text
    • http://maykistore.ru/fonedog_toolkit_apk_downloadp726e.pdfIn PDF document text
    • https://cdn.sqhk.co/sosobigawe/UjcGibh/savannah_ga_commute.pdfIn PDF document text
    • http://shoop-fr.ru/julie_sanchez_sharabijjx56.pdfIn PDF document text
    • https://cdn.sqhk.co/surodamiz/IifjaWh/1529838775.pdfIn PDF document text
    • http://shoppermarket.online/data_analysis_software_free_full_versions4ftc.pdfIn PDF document text
    • https://cdn.sqhk.co/fofodafexadu/rgdghij/xisujeromaxodal.pdfIn PDF document text
    • http://feelslike35.com/46544462290c4064.pdfIn PDF document text
    • https://cdn.sqhk.co/zotevokep/iiYghhh/download_galaxy_battleship_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wixefawoz/jfUjihd/beast_quest_game_free_online_play.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://poserub.rf.gd/54533820861.pdfIn PDF document text
    • http://jenesigafepi.epizy.com/carsguide_subaru_xv_review.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
    • https://fr.wikipedia.org/w/index.php?title=Muqaddima&ampIn 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_off0000bd72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD72 5596 bytes
SHA-256: b8904ae9728b9545bd422739ea5f9ef1ee314f76dc035ee6314da57f6e24af0f
font_01_sfnt_off0000d045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD045 11232 bytes
SHA-256: 8659fcb835fe2013cbb606804fff0492ff76cc0fa361f0d07451184c8a8ea072