Malicious PDF — malware analysis report

Static analysis result for SHA-256 417d4ff750769ac4…

MALICIOUS

PDF

87.1 KB Created: 2021-03-05 09:42:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 96d09bff08f2897f76d1e3ea1da8ed09 SHA-1: 6058aa51013fa2b261355982a19685786451efb6 SHA-256: 417d4ff750769ac493068d2db33a0bc60c12b25b59cc2fdca5976d6cfaa8a0dc
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://fokemale.ru/wb?keyword=acer%20s231hl%20hz PDF link annotation
    • http://vorusobowa.66ghz.com/ableton_live_9_ita_mac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450418/normal_5ffe66bf70df3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388626/normal_60353dff4ac3f.pdfIn PDF document text
    • http://stav-games.ru/nupulukazoyrjv.pdfIn PDF document text
    • http://rokuboxajiga.medianewsonline.com/lotopakuget.pdfIn PDF document text
    • http://vostokzapad.su/miviruhrjmv.pdfIn PDF document text
    • http://kosodidaxelo.22web.org/deranezov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453890/normal_5ff6d62b940ba.pdfIn PDF document text
    • http://bimoriz.getenjoyment.net/what_is_in_the_norton_anthology_of_english_literature.pdfIn PDF document text
    • https://cdn.sqhk.co/zugivakizo/ihjdIEV/what_does_two_dots_and_a_dash_mean.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473062/normal_6007a6666bc98.pdfIn PDF document text
    • http://retoxebed.22web.org/pathfinder_adventure_generator.pdfIn PDF document text
    • https://cdn.sqhk.co/fonizijodi/Mgybege/epic_mini_basketball_trick_shots.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6d4cd3b7-91e9-43ac-92b9-205473f1e50d.filesusr.com/ugd/28146e_8ce26e94ae5844d6b0c0d7d9326e3dd0.pdf?index=trueIn PDF document text
    • https://314f4944-3dd9-45af-b5ee-fc7f46c963e4.filesusr.com/ugd/73cb9e_f8e032619c22402b86ac1fb04d3b8913.pdf?index=trueIn 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_off000118c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118C5 5064 bytes
SHA-256: d7e2bf15da0b3255110007d46bc951df597790d224bc45b01ad0c6556afaac4a
font_01_sfnt_off00012a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A0D 11104 bytes
SHA-256: b29b13c605736ba0b0613e8f0eacb18f3e135aaa9021bb128f75f2bac84ce076