Malicious PDF — malware analysis report

Static analysis result for SHA-256 80533c342e997e4e…

MALICIOUS

PDF

70.7 KB Created: 2021-02-23 08:17:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e01bff00bf63a9ef785e52324a758bbf SHA-1: 7a936088de2e1883e6d1cd3d51a431f5aca39b10 SHA-256: 80533c342e997e4e1d9d765292b46a2e7c7e365ad0c7a5f91937462c387eb8b0
136 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
  • 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://seumenha.ru/123?utm_term=conjuguemos+answers+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446643/normal_602ea334c44d7.pdfIn PDF document text
    • https://cdn.sqhk.co/besogevipadi/ijgAvjc/railway_drawing_pictures.pdfIn PDF document text
    • https://cdn.sqhk.co/barugogip/RgehfUh/guide_for_super_mario_64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485821/normal_5fcd728336267.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/jgjdjhj/sotijufad.pdfIn PDF document text
    • https://cdn.sqhk.co/penuvipaw/hjh9hee/hip_hop_music_videos_clean.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453553/normal_600f9e5886678.pdfIn PDF document text
    • https://cdn.sqhk.co/doxufojixene/Omjbhgx/fist_of_the_north_star_movie_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/iiKgghe/73644194674.pdfIn PDF document text
    • http://jerusitujuj.22web.org/felonadiwulajuzexol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gusubozavagu.epizy.com/fitted_bed_sheet_meme.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/bade_acche_lagte_hai_movie_2017.pdfIn PDF document text
    • http://safipalibeso.rf.gd/badnaamiyan_song_video_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/liberty_bell_march.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/fowagefek.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_off0000d910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD910 5212 bytes
SHA-256: 3003209bf2e127f0aa44db94af3da9de730c93a1afcd40cd1355956c2b25eb29
font_01_sfnt_off0000ead0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD0 10436 bytes
SHA-256: f998eddf46cbcc9d7e41f4113cb64b48dad3b8af843715599d35ecfda71ad278