Malicious PDF — malware analysis report

Static analysis result for SHA-256 24be8e8da1a4262a…

MALICIOUS

PDF

70.6 KB Created: 2021-02-18 08:31:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 15f0e10d05eaa202e8643fc18cb40731 SHA-1: f92db94fbbced3502defab14d4224e6273393113 SHA-256: 24be8e8da1a4262a3a22a381188ae7151ae2672192bbbe75a1f0acae896af1ff
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://bologen.ru/wix?keyword=mystery+manor+cheats+chapter+7 PDF link annotation
    • http://prazdnikprosto.ru/information_about_computer_history_in_marathir7m8u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471082/normal_5fd2d3a09d91a.pdfIn PDF document text
    • https://cdn.sqhk.co/vunofufi/if8thhH/juegos_de_thumb_fighter_christmas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481847/normal_5fdddea641ca9.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/sRhcpgj/39312314923.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453764/normal_5fe9de2620869.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/0gfiibu/nefomawezalovuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379483/normal_5fe00f7629abe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381105/normal_6024757119e92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443810/normal_5fded3b80741a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416493/normal_5fd663d139cf7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402247/normal_60038e35a14f2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366367/normal_5fe3198b1ecde.pdfIn PDF document text
    • http://reactivaperu-2020.com/vezokuvifasohzwx.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/j9HytLM/age_of_empires_2_definitive_edition_steam_mac.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/lorugipopuxe/24352400925.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/nulimifuwojudekol.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/free_printable_spelling_worksheets_for_2nd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/vozowerokafenapulabovu.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_off0000d6e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E4 5328 bytes
SHA-256: 74f53fe0d2777fb4043c46c3fc183d6466087515d79031855e4b623f02f97348
font_01_sfnt_off0000e8f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F2 10692 bytes
SHA-256: d829d827b97c8b01cd2da0cc2d1b659d0878970be17de5e798e5261017896b88