Malicious PDF — malware analysis report

Static analysis result for SHA-256 6482477b69fae622…

MALICIOUS

PDF

71.9 KB Created: 2021-02-16 08:37:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: eb9e6a53ab44de361e0cbd33aa8aeb11 SHA-1: ff9704429651fb60f473ff7583e5fd82ffb099ed SHA-256: 6482477b69fae622d5f62a108e32a0e3425610ea807513d5956771ce21841d8d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wix?keyword=bookstores+in+anderson+sc PDF link annotation
    • https://cdn.sqhk.co/zexetiminav/cieghtg/33947028177.pdfIn PDF document text
    • https://wujuwali.weebly.com/uploads/1/3/5/3/135326068/kowapojuwemosol.pdfIn PDF document text
    • http://waliwosodumobu.iblogger.org/bluestacks_android_emulator_for_pc_windows_10.pdfIn PDF document text
    • https://pobikutilun.weebly.com/uploads/1/3/4/8/134871216/dubifedefodaw_jopilererew.pdfIn PDF document text
    • https://cdn.sqhk.co/menekilebuz/giihifb/40475898774.pdfIn PDF document text
    • https://juputifewusa.weebly.com/uploads/1/3/4/4/134435955/wofezanubog.pdfIn PDF document text
    • https://cdn.sqhk.co/leperanurosi/yzSiaHL/gexiwagugof.pdfIn PDF document text
    • http://getdouche.xyz/derugafajaburef21lsv.pdfIn PDF document text
    • https://cdn.sqhk.co/vuritukupus/97pghLq/34392104892.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/hh8jcAs/33251242504.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/TbkEuws/just_drift_away_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/dafagupovo/Z3zX9gi/cabinet_dentaire_dent_de_lait_ixelles.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwexosul/fjhgfhj/prison_break_the_final_break_movie_free.pdfIn PDF document text
    • http://wowit.pro/cursive_writing_sentence_worksheetsr0kq5.pdfIn PDF document text
    • http://fortuneo-enligne.com/fuzofotimq8nm.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/wujixus/free_christmas_invite_template_for_word.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/rusizowiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/english_grammar_course_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/filter_script_google_sheets.pdfIn PDF document text
    • http://dezazikep.epizy.com/angaar_bengali_movie_link.pdfIn PDF document text
    • http://vatimofaxemog.rf.gd/bibliography_in_latex.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_off0000dbc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC1 5016 bytes
SHA-256: 12ef798af393469cf04eec7dce6ec7ba084298e798112a73d2de31302450c7a2
font_01_sfnt_off0000ece0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE0 11012 bytes
SHA-256: 4a1f0b4d9c0a09d3d165f0ac045cb13b00fba96fa77187025b4e1ee8ca438de7

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