Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e62d45b7c999aa…

MALICIOUS

PDF

66.2 KB Created: 2021-02-11 20:38:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f17cecdd06db91271bc84944808ac464 SHA-1: 5b572420251c1eb1490f39fc446d8329da53013c SHA-256: 96e62d45b7c999aaf355925f78c500ca72880ebd2520a1785e0e80fd04017ee8
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://jacksth.ru/wix?keyword=worksheet+metals+nonmetals+metalloids PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4428061/normal_5fe50de17282c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456372/normal_600f025c635db.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/yjgighj/missile_defense_system_name.pdfIn PDF document text
    • http://rm-swis-mine.com/381478931860mtth.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377647/normal_601dfb080d9f3.pdfIn PDF document text
    • http://wersita.fun/peliculas_de_barbie_completas_en_espaol_listaz3rbh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410433/normal_600b56557af75.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380219/normal_5ff6bee30404a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403141/normal_5ff543cc28ee3.pdfIn PDF document text
    • http://help-verifiedbadgecenter.com/dnd_5e_tranquility_monk_guide5yjiy.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/ajdYKww/dead_zed_4_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444114/normal_5fc8cefa29693.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374976/normal_601378aa426f1.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/lixuduwonifa/ziwunug.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_off0000c8d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8D6 5144 bytes
SHA-256: 5350e61dfb7c0271cdaac0d9a67a59bef9c86450c7e24a998f90185ac0b4a366
font_01_sfnt_off0000da2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA2D 9976 bytes
SHA-256: ae4ffee27e37d1814e2108f996d06846165b5757fba1c83d5b39db9ccaf378e2