Malicious PDF — malware analysis report

Static analysis result for SHA-256 467e20404e7b09aa…

MALICIOUS

PDF

72.2 KB Created: 2021-02-28 05:54:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6c7c7240e248339ce2db72ec617aeff1 SHA-1: 54a3959a7591ec10edb48dae5bff2f35aee88324 SHA-256: 467e20404e7b09aa0787b121a481a326cacabbb7052845315bace93c46361117
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/award?keyword=are+expired+ink+cartridges+still+good PDF link annotation
    • https://cdn.sqhk.co/votiwixuduzo/ibOhh0l/facebook_instagram_logo_png_transparent_background.pdfIn PDF document text
    • https://gedenotovet.weebly.com/uploads/1/3/1/3/131379555/70e2ef12.pdfIn PDF document text
    • https://befutoxe.weebly.com/uploads/1/3/4/4/134443098/825b54779b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409811/normal_6032283404065.pdfIn PDF document text
    • https://patoxudiza.weebly.com/uploads/1/3/0/7/130739147/girifavunuti.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410983/normal_5ffa82592c07c.pdfIn PDF document text
    • https://vepemetamat.weebly.com/uploads/1/3/4/3/134354227/vutojosez.pdfIn PDF document text
    • https://gaxurorilapuw.weebly.com/uploads/1/3/2/3/132302857/617142df71e23cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449766/normal_60220aa26a991.pdfIn PDF document text
    • https://cdn.sqhk.co/fisejadiruw/igmyGjj/94331221392.pdfIn PDF document text
    • https://cdn.sqhk.co/mowefakura/3P8BXzg/fashion_braid_hairstyles_salon-_girls_games.pdfIn PDF document text
    • https://cdn.sqhk.co/zosurinipin/Xgchcjc/xibikafukemelunojem.pdfIn PDF document text
    • https://cdn.sqhk.co/jufebarur/ddjcrge/mobanadixiwan.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447431/normal_5ff278f9e9f73.pdfIn PDF document text
    • https://vopusufibos.weebly.com/uploads/1/3/4/7/134731751/2057420.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000de87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE87 5364 bytes
SHA-256: cdf1c2b6624998def31c2593f9b6da5f160ec713a6b7037be88721eb333afb62
font_01_sfnt_off0000f0da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DA 10208 bytes
SHA-256: 4dc4a864765f5c2452c210c3e2674490902958f3837c096c4e494aee16a6747c