Malicious PDF — malware analysis report

Static analysis result for SHA-256 b879c8069a72c22a…

MALICIOUS

PDF

65.8 KB Created: 2021-02-25 00:44:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 57d205beb3a609e1a34509d4dca7247e SHA-1: 74dde1984e4511d246c52edcc7c063af1a22f149 SHA-256: b879c8069a72c22a6c5d08459f213ece28effcfc473f5c4acde488408b5a2301
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://jottigo.ru/wb?keyword=sony%20headset%20mdr-rf985r PDF link annotation
    • http://ighelperscenter.com/what_channel_is_vh1_on_fioslh8rk.pdfIn PDF document text
    • http://matroskin.space/gofodemepoxixififemkksv.pdfIn PDF document text
    • https://cdn.sqhk.co/tavolimogid/HibjhtI/ai_healthcare_chatbot_github.pdfIn PDF document text
    • http://shoplus.info/wimogeduzusimlkt9e.pdfIn PDF document text
    • http://euroshopme.site/99795987262ym5um.pdfIn PDF document text
    • http://xitaboketeloba.iblogger.org/45435134045.pdfIn PDF document text
    • http://dkblogin-de.best/duzorufunijud8mcct.pdfIn PDF document text
    • http://azalea.store/andhra_bhoomi_weekly_old_editionsfo3at.pdfIn PDF document text
    • http://nokasosozigof.mypressonline.com/pretty_little_liars_season_5_episode_26_dailymotion.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/reading_scales_worksheets_year_4_australia.pdfIn PDF document text
    • http://veruvipavopa.getenjoyment.net/the_merry_adventures_of_robin_hood_chapter_4_summary.pdfIn PDF document text
    • http://lidozabanej.iblogger.org/mcculloch_pro_mac_610.pdfIn PDF document text
    • http://3gusevshop.space/what_is_the_meaning_of_howlaq57k9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wegatanubuguze.rf.gd/xemoloj.pdfIn PDF document text
    • http://vuroxazejugu.epizy.com/optiplex_755_motherboard_specs.pdfIn PDF document text
    • http://sazojojuw.rf.gd/high_performance_auto_parts_stores_near_me.pdfIn PDF document text
    • http://gotuziput.epizy.com/gofojiboba.pdfIn PDF document text
    • http://tamakibegotilo.epizy.com/krishnan_marriage_story_kannada_movie.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_off0000c360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC360 5828 bytes
SHA-256: bdef98e411b05a5c6d7a505512591c1b7afca40df48351d9adae21cdf6318a8e
font_01_sfnt_off0000d71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71A 10464 bytes
SHA-256: e7763e264f87c27b78ec6d0f9a774d42f92713d5a01aae1c062be3cc1d1a5cc7