Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4d0d4ece5b5853a…

MALICIOUS

PDF

71.8 KB Created: 2021-02-18 20:26:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 802a53edd86971e98e53c0d492a4c7f6 SHA-1: 0b4fbc778ce6d99119a44e0a4db76a9a03b4c3c3 SHA-256: b4d0d4ece5b5853a9c3eb129343ab4e3ac8a227948b69815bf1063089ffe8ef5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://jacksth.ru/wix?keyword=virtual+reality+glasses+apk PDF link annotation
    • https://cdn.sqhk.co/pugirunosamo/phh3idp/20130735397.pdfIn PDF document text
    • http://vienvozvrat.site/my_talking_angela_game_pleasevq1mh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380707/normal_5fd626546e431.pdfIn PDF document text
    • https://cdn.sqhk.co/muzolorakow/jjwZVth/line_graph_in_excel_online.pdfIn PDF document text
    • https://cdn.sqhk.co/dumotometapo/jgwDb1r/legend_of_blades_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/xunijejozi/du7027Q/44455749967.pdfIn PDF document text
    • http://fitness1.space/15469829865y9xe3.pdfIn PDF document text
    • http://helplnstagram-confirm.com/94326592185nenzm.pdfIn PDF document text
    • http://begemotiks.fun/74235359343iduz3.pdfIn PDF document text
    • http://tizezs.xyz/adguard_premium_apk_stablez8lgh.pdfIn PDF document text
    • http://mrt36.ru/tumblr_image_downloader_app0l3yi.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/VjRBU6S/74522019062.pdfIn PDF document text
    • https://cdn.sqhk.co/wajerewuwer/ehfieBg/85488662879.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385009/normal_5fd67de4c50a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378405/normal_601a1b95baf9a.pdfIn PDF document text
    • https://cdn.sqhk.co/bezakebijuk/hTgchhc/burnout_drift_3_pacogames.pdfIn PDF document text
    • https://cdn.sqhk.co/rojozedofaf/bfjyxmA/2024356609.pdfIn PDF document text
    • http://stat-index-co.com/margin_of_safety_formula_stocksmhhrq.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/buwosevax/39429900168.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/22438145542.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/executive_travel_itinerary_template_free.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8BE 3460 bytes
SHA-256: 333db0dbd06cef478e00f119b57086973afe1f3ac0501a83bd4863391cebcebe
font_01_sfnt_off0000c448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC448 5120 bytes
SHA-256: e68b5f93ac77e9ea9291e42e4dc4b62a4586646bcff3b26cb6f8389c0be4baf5
font_02_sfnt_off0000d5d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D3 9944 bytes
SHA-256: bd38750facf6983fde33c44ff5cfc6642673f8abfa59cf3df163eddf08f9f8a4
font_03_sfnt_off0000f827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF827 17920 bytes
SHA-256: 7ad18529518cde0740b27ad45db3c2ff66f16572832b8a850fac238e2e6090ad

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