Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1a9b99dd60828f7…

MALICIOUS

PDF

78.2 KB Created: 2021-03-03 16:07:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bdc315e4414338869475f724ab32cdd8 SHA-1: 24ed66224d53393335b37ade56ffb5cac0513380 SHA-256: b1a9b99dd60828f76aa762a9105f4bcba4d69dcb1b4be65d98c0494f28d6f199
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xezojetit.ru/award?keyword=panasonic+kx-tgea20+factory+reset PDF link annotation
    • http://bajifepeselok.sportsontheweb.net/junevonamizesebo.pdfIn PDF document text
    • https://pevetuximamit.weebly.com/uploads/1/3/1/6/131606263/5efaca0fc0cece.pdfIn PDF document text
    • http://gidpopiteru.com/cordially_invited_invitations_templatesm87by.pdfIn PDF document text
    • https://mebijanuwirat.weebly.com/uploads/1/3/4/0/134042853/bekuvamasivazi.pdfIn PDF document text
    • http://mini-camera-super.club/graphic_designer_portfolio_template_free_psdteq1h.pdfIn PDF document text
    • http://blubadgehelp.net/craftsman_gt5000_engine_removalauo2c.pdfIn PDF document text
    • https://lekomuge.weebly.com/uploads/1/3/4/7/134773229/6bde4c40da54.pdfIn PDF document text
    • http://lynciguest.com/78120875999ciezi.pdfIn PDF document text
    • https://timijajuvage.weebly.com/uploads/1/3/2/6/132683040/nibuju.pdfIn PDF document text
    • http://kalavar.xyz/464619777013veo6.pdfIn PDF document text
    • https://sasanufodokedu.weebly.com/uploads/1/3/0/9/130969760/kokowobore_rolodopagaguma_murefetu.pdfIn PDF document text
    • https://jejipabiximi.weebly.com/uploads/1/3/2/7/132741556/9888056.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382771/normal_5ff1bb90c33fc.pdfIn PDF document text
    • http://zokiwedilar.mypressonline.com/72166683387.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pezamax.myartsonline.com/76007432233.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_off0000f61f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF61F 5560 bytes
SHA-256: 62aa1f9499eba9cb6443f8c00d063bb2c63a7ea72540952ed2a4fe9ed9f804e5
font_01_sfnt_off00010936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10936 10196 bytes
SHA-256: 21c02701dd1f32fd4b1012efd2c84242bd1e693a0ed1092659f9165149f9e108