Malicious PDF — malware analysis report

Static analysis result for SHA-256 7976ae4095743413…

MALICIOUS

PDF

78.1 KB Created: 2021-02-24 08:26:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0bef0ff5734fdd6c1d8cd05082451d53 SHA-1: b5c5613df8c38958c893f8a6783d5facf5ed1ef1 SHA-256: 7976ae4095743413cb2cbd95b7fd45678f3a4def10121cef403c726bb6aa9d09
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://baarspo.ru/wb?keyword=air%20force%201%20high%20top%20white PDF link annotation
    • http://pressit.fun/kidijurogulf0xc7.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxezitowefi/dfT5haz/battle_royale_3d_warrior63_63_apk_download_apkpure.pdfIn PDF document text
    • http://natiral.space/zenonia_5_unlimited_stats_and_zen_apk41x3d.pdfIn PDF document text
    • http://mybestchan.online/fuwifadedodunazupubefi1g7o6.pdfIn PDF document text
    • https://pemiroma.weebly.com/uploads/1/3/1/3/131383733/efd8da331b17.pdfIn PDF document text
    • https://cdn.sqhk.co/jazumagefo/hfnhfij/teacher_assistant_grade_book_target.pdfIn PDF document text
    • https://guxumexowe.weebly.com/uploads/1/3/3/9/133999944/mizowaxapigegen_lilolitubimife_putaruv_sigezu.pdfIn PDF document text
    • http://rezotu.xyz/tamolijuvej7jop.pdfIn PDF document text
    • http://shimano-stradic.ru/how_does_sea_bond_denture_adhesive_workegzco.pdfIn PDF document text
    • http://likelid.xyz/etude_suzuki_violin_book_1_sheet_musicds9ki.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/hhPifhf/hakuoki_edo_blossoms_trophy_guide.pdfIn PDF document text
    • https://suzavopuwo.weebly.com/uploads/1/3/4/6/134686694/zimifubiraxo_luzupusuluk.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/piradi/gender_pay_gap_reporting_make_your_calculations.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/communicate_with_cambridge_class_2_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/assam_university_routine_2017.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_off0000f60b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60B 4992 bytes
SHA-256: 49a9a4747197431f42dedc03e0f27f54b28af64f25caf886b119a2e0800787a7
font_01_sfnt_off00010725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10725 10856 bytes
SHA-256: 73617bafd134b76ff1bea169c9a933d19fa84b0595345e9d5b1ac6a643f584b8