Malicious PDF — malware analysis report

Static analysis result for SHA-256 cff236e86e559e11…

MALICIOUS

PDF

70.1 KB Created: 2021-02-26 15:49:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f08779bf7e6b81c1ef207de33d676f21 SHA-1: e5377a63051b118e3827c0ec4759f077cedd8bcf SHA-256: cff236e86e559e11faee35ce3e26d9628e81aa6c89ee7df375c88e6d671c8ee0
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://dugedepap.ru/wix?keyword=deepak+chopra+pdf+almas+gemelas PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384655/normal_602063e724e37.pdfIn PDF document text
    • http://prosucre.pro/mbti_personality_database_quizhde0q.pdfIn PDF document text
    • http://ejinaya.com/80480339140n99ok.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/Fgdc9id/97157571995.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454562/normal_6013ae8ad1456.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374374/normal_5fe42abea18b6.pdfIn PDF document text
    • http://2022god.com/crucigrama_de_quimica_organica_resueltog97wv.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/ia9hcjg/merchant_marine_academy_football_roster.pdfIn PDF document text
    • https://cdn.sqhk.co/vagewovupug/hhchhjb/x-_games_12_bmx_boy_s_bike_green.pdfIn PDF document text
    • https://cdn.sqhk.co/wudenedu/zdJ99hi/ice_cream_rolls_machine_mexico.pdfIn PDF document text
    • https://cdn.sqhk.co/nerenina/icheXjh/52269592800.pdfIn PDF document text
    • http://setifol.66ghz.com/bupekivujusef.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/kexamoxusinixu/stream_of_consciousness_modernism.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/oled_tv_reviews_consumer_reports.pdfIn PDF document text
    • http://mikesivu.rf.gd/web_analytics_reporting_best_practices.pdfIn PDF document text
    • http://zenowalu.rf.gd/biochemistry_lehninger.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/asia_physical_map.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_off0000d4d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D1 5632 bytes
SHA-256: ad15f3cec31c721187a2ea4d50274442637be0f0d2efd97a87174bb68e89374c
font_01_sfnt_off0000e7db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DB 10564 bytes
SHA-256: 0726b086aa9c4f875f2c940d3ebb04342ddde23fcf82c0f8a59978d366f7aebb