Malicious PDF — malware analysis report

Static analysis result for SHA-256 8956cd36b0efc75a…

MALICIOUS

PDF

73.7 KB Created: 2021-01-21 05:51:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 21a723be91fee052c586a02b115154ed SHA-1: 0fea9fc0c4bbf2a95df5f8912761c92c7ce74f0f SHA-256: 8956cd36b0efc75ae4287afd0b6dc060d895c447d753aefd1a0016fabb71dca8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/123?utm_term=unseen+power+of+the+picket+fence+lyrics PDF link annotation
    • https://cdn.sqhk.co/sevafeluba/cDBdhfT/snowboard_master_3d_mod_apk_unlimited_money_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvupalib/UqGZgcb/lyric_captions_for_instagram_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/BgdliaA/rope_frog_gangster_crime-_ninja_hero_fighting_games.pdfIn PDF document text
    • https://cdn.sqhk.co/jatizaru/ghjg1Od/masuxirimilogejefuwexunu.pdfIn PDF document text
    • http://selolaz.66ghz.com/creepshow_shudder_parents_guide.pdfIn PDF document text
    • http://gopubewigofopa.iblogger.org/bad_guy_piano_sheet_music.pdfIn PDF document text
    • http://kufigada.22web.org/install_linux_os_on_android_tablet.pdfIn PDF document text
    • http://rapalafipotofuw.iblogger.org/atlas_mountains_guided_trek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jojanotesejivi.epizy.com/happy_birthday_cake_with_name_gif.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/prodigy_math_game_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/express_vpn_uae.pdfIn PDF document text
    • http://fivefujowopigu.epizy.com/power_bi_report_server_analysis_services.pdfIn PDF document text
    • http://fakuzilezozo.epizy.com/jasper_report_to_excel_file.pdfIn PDF document text
    • http://sekijipaladi.epizy.com/chennai_express_movie_720p_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/febozeb.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/galodegubagivodokuxawujed.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/munchkin_safety_toddler_bed_rail_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/static_variable_python_format.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_off0000e296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE296 5144 bytes
SHA-256: 1a417143532932a0f3e45a8e23b0b59f8646644c23d9241ecce7cd910a7e3ebd
font_01_sfnt_off0000f434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF434 11088 bytes
SHA-256: 291fb6790701824a2a103ec3313808a3acc9a2442dcbaed324f3c9ec9effd2a8