Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed236c8ad453d2d4…

MALICIOUS

PDF

69.8 KB Created: 2021-01-29 05:46:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0bd3e91d1a2cd491b8c31a4faac6fede SHA-1: 26e8619be54d564c8de0ce99fcd041148ebd1bee SHA-256: ed236c8ad453d2d466acefb4f952e39ca1bb5ff79b6c53551a4123b94e432469
136 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
  • 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://jottigo.ru/wb?keyword=cut%20the%20rope%202%20gamepix PDF link annotation
    • https://cdn.sqhk.co/leperanurosi/ijWhbOE/moxolepetejepib.pdfIn PDF document text
    • https://cdn.sqhk.co/xunijejozi/QSjiige/evolutionary_approach_psychology.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481285/normal_5fc64802b97f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412378/normal_5fcda0da5b673.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405641/normal_5fcf488538caa.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/JihH63R/stickers_de_amor_para_mi_esposa.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisuvov/gduFzPh/zinoruxufu.pdfIn PDF document text
    • https://cdn.sqhk.co/duloputemab/5hjheCm/uae_top_100_companies_list.pdfIn PDF document text
    • https://cdn.sqhk.co/wezokobuli/fghvjhK/lg_mobile_switch_apple_store.pdfIn PDF document text
    • https://cdn.sqhk.co/wupofolizaj/hMrjnuR/do_kite_birds_attack_humans.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414352/normal_5fce8af99fd59.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxunafifu/gheajb6/basketball_game_download_for_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495855/normal_5ff5f4a1d21c8.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/zevutebulaworel/letter_n_activity_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/55448049725.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_off0000d4d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D8 5128 bytes
SHA-256: 9739b33b42acf42a3bd676c7c83f255b0059a125282ea434aee838834cb53775
font_01_sfnt_off0000e621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE621 10696 bytes
SHA-256: 67dabc0fb0b2b986bcab5e50f708932af024176ee7af210aaefcc40ed18716eb