Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2e9c08eeb5b3a9…

MALICIOUS

PDF

69.3 KB Created: 2021-03-03 13:19:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 81c71ab2121aa3f32a473c1b4af19062 SHA-1: 08d697f28068133febf383d3f511f8fde39feb13 SHA-256: 7a2e9c08eeb5b3a945744108363af442b4d042b942a5acdee7b6d146814513f7
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://bologen.ru/award?keyword=indian+government+act+1935+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424025/normal_603baa6d8b936.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453732/normal_60244c6cc8702.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443799/normal_602d87904aacc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379362/normal_5ff080f67a57c.pdfIn PDF document text
    • https://cdn.sqhk.co/gevolonovare/9hcTwTd/guzagebukusogaluva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377902/normal_603824e5af70a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470972/normal_6018edf8a7ee6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385026/normal_6010b717eba8d.pdfIn PDF document text
    • https://cdn.sqhk.co/xeliwiwogivo/hjghh39/59270828066.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/tomaxade/formal_suit_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/actual_cannibal_shia_labeouf_character_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/how_do_i_share_a_web_page_on_facebook.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/precalculus_conic_sections_worksheet_with_answers.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_off0000d356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD356 5756 bytes
SHA-256: f9aae1d841cb9c99fd34db8f6a45e696a274e9b01dbdeb157c50c455b705a4ce
font_01_sfnt_off0000e6ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EF 9704 bytes
SHA-256: df47c262dd244a3959ecd4c1957153739ab96ce53d6b6e83ae400c69e5018efd