Malicious PDF — malware analysis report

Static analysis result for SHA-256 34391041b47dfb49…

MALICIOUS

PDF

72.4 KB Created: 2021-03-03 12:33:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f58ba8bcefc10b8f3546b954cc4b17a2 SHA-1: 881f5b011c2c1565278958ff24c0257b8325ac3a SHA-256: 34391041b47dfb498d2c9581e18865a0ac3c567232f9a89cd4ba11fafd762443
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://golowaki.ru/award?keyword=arduino+show+sketchbook+folder+ubuntu PDF link annotation
    • http://logiluxojeg.iblogger.org/25671442810.pdfIn PDF document text
    • http://vugekowuzujed.scienceontheweb.net/80221985479.pdfIn PDF document text
    • http://procripton.com/zogurukedaj3z1d3.pdfIn PDF document text
    • http://teleporttur.ru/kakashi_sharingan_wallpaper_for_androidx3zqy.pdfIn PDF document text
    • http://kumululurug.scienceontheweb.net/safety_data_sheets_should_include.pdfIn PDF document text
    • http://cosmicgig.com/putisatepifutomoferokinuzqk2.pdfIn PDF document text
    • http://kulinarny.site/julibewisivog1ww60.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/kisimujuk/94539446534.pdfIn PDF document text
    • http://baderal.rf.gd/95161873975.pdfIn PDF document text
    • http://bitujiduruv.myartsonline.com/kettering_sda_church_directory.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/fakawebowavosakupofa.pdfIn PDF document text
    • http://vuroxazejugu.epizy.com/mibugako.pdfIn PDF document text
    • http://jabejanaboz.atwebpages.com/nutevaviz.pdfIn PDF document text
    • http://pugabovewel.epizy.com/tokivesediwunixosisi.pdfIn PDF document text
    • http://filexumif.epizy.com/rofagetik.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/salesforce_manage_report_folders.pdfIn PDF document text
    • http://vafedoba.rf.gd/what_is_the_lucky_color_for_year_of_the_rooster.pdfIn PDF document text
    • http://kosiwamirofakad.rf.gd/john_grisham_books_turned_into_films.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_off0000dff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF9 5184 bytes
SHA-256: 78805b5d9670814379c1659f431fa2f874f11598ab3077ffbf58802029487f82
font_01_sfnt_off0000f1ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AD 10132 bytes
SHA-256: 396135f776914ef7e4aa7e8042f10a7695c8a1ea59b34d2bb2b922f536287348