Malicious PDF — malware analysis report

Static analysis result for SHA-256 11990909de514125…

MALICIOUS

PDF

79.7 KB Created: 2021-02-12 10:29:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b9430e4dc364188d48f104714155e284 SHA-1: cdf62eacbe7b28834afeedaf45c3a42fbe3dbc44 SHA-256: 11990909de514125f04f8bac0c222b4e3dc205335666c2f50cd89a4f4e1073c1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wb?keyword=news%20reporter%20training%20near%20me PDF link annotation
    • https://mufikufit.weebly.com/uploads/1/3/4/7/134766202/ponisegeki.pdfIn PDF document text
    • https://lapawiniposa.weebly.com/uploads/1/3/5/3/135323982/7792265.pdfIn PDF document text
    • http://detonic-buy.website/libro_didactica_general_agustin_de_la_herrancq66i.pdfIn PDF document text
    • https://josapepukixo.weebly.com/uploads/1/3/1/3/131384602/2372718.pdfIn PDF document text
    • http://gratoraama.space/miscreated_interactive_mapkmkku.pdfIn PDF document text
    • https://zasubimivari.weebly.com/uploads/1/3/1/3/131383839/xurafoni.pdfIn PDF document text
    • https://kejifesabateg.weebly.com/uploads/1/3/4/8/134847793/4757952.pdfIn PDF document text
    • http://betflixguvenilirmi.com/64490648749nja5d.pdfIn PDF document text
    • https://murafasonuralab.weebly.com/uploads/1/3/5/3/135398902/noluw_giwabisonedawet.pdfIn PDF document text
    • http://voicebftyi.com/pegudobetukqn6w.pdfIn PDF document text
    • https://nelibijejukeli.weebly.com/uploads/1/3/1/4/131437261/gebisijesokedaronoso.pdfIn PDF document text
    • https://bevufifebuseve.weebly.com/uploads/1/3/1/8/131855995/3352155.pdfIn PDF document text
    • https://nosisakapu.weebly.com/uploads/1/3/4/7/134773138/98b0650166.pdfIn PDF document text
    • https://bumiwawewa.weebly.com/uploads/1/3/5/3/135343946/7495494.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393637/normal_5ffac3b7bc17d.pdfIn PDF document text
    • https://lorufolirosob.weebly.com/uploads/1/3/4/5/134584190/2077792.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497358/normal_5fcb0b24c31f7.pdfIn PDF document text
    • https://vusuvokitajize.weebly.com/uploads/1/3/0/8/130874031/kujedi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.amtrak.com/servlet/ContentServer?pagename=AmtrakIn 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_off0000fa75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA75 5168 bytes
SHA-256: 5ff8bafa2bd5adb50aa2510c85048899512d13296d011b4bb9bc2e965106ea28
font_01_sfnt_off00010c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C0F 11072 bytes
SHA-256: 03fa2672460d88bac1fce18644b5aef0995cef03e505d6c4349458b252abdf46

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