Malicious PDF — malware analysis report

Static analysis result for SHA-256 494814a0f84b3be1…

MALICIOUS

PDF

72.2 KB Created: 2021-03-02 20:02:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bc218485d54a141eb40e3ee9f2fd28bb SHA-1: c5c642780dcb387911f18d5d30cd33e398067bcc SHA-256: 494814a0f84b3be18d209965ac5888e89fc22568270ecba5653da8def1f1c73e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=famous+spanish+classical+guitar+players PDF link annotation
    • https://cdn.sqhk.co/kisasizaro/Q659egf/free_online_music_streaming_services.pdfIn PDF document text
    • http://lenugaguv.medianewsonline.com/best_blues_guitar_chord_progressions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418764/normal_5fcb1aa7e22df.pdfIn PDF document text
    • http://max-lifting.store/vikisurunovexaezlw8.pdfIn PDF document text
    • http://secureappeal.com/326611895071ga0a.pdfIn PDF document text
    • https://xisuviwilizej.weebly.com/uploads/1/3/4/3/134320176/1050114.pdfIn PDF document text
    • https://cdn.sqhk.co/pagozixupezi/HhbgiSW/indy_car_racing_games_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/jdjeijq/ruvudam.pdfIn PDF document text
    • https://lewozokor.weebly.com/uploads/1/3/5/4/135400983/jezareb_xusewurokilo_kadatibesuvalu.pdfIn PDF document text
    • https://kopiwuzurori.weebly.com/uploads/1/3/1/3/131398237/pedudenutibizoz.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/nufidibodudulad/ionic_capacitor_android_studio.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/gidasuretujubukij.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/how_to_get_a_bartending_license_in_indiana.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_off0000dee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE6 5404 bytes
SHA-256: fc8792cab6414a42a026cf27071172c9e01e0a1e12c52b99d1c5e5a26c1d264b
font_01_sfnt_off0000f12d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF12D 10156 bytes
SHA-256: 6e85d73bbd0dc4cef3154f56cc3c970073a6348d6ef763d46edd61d547014279