Malicious PDF — malware analysis report

Static analysis result for SHA-256 c97a2b660af084bd…

MALICIOUS

PDF

43.7 KB Created: 2020-11-08 03:32:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 68dae51d5ecad1b293f389fd712b2343 SHA-1: cbea7e0f63d945ecb3899dae3027d7b606e97c37 SHA-256: c97a2b660af084bdd2fcaba050066184f081b219024d7e12f5684a4aae75ad8d
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/aws?keyword=teachings+of+jesus+list PDF link annotation
    • https://rurevudo.weebly.com/uploads/1/3/4/2/134265418/zijuzi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446283/normal_5fa12663d98cf.pdfIn PDF document text
    • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/c0531f4a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://xojomome.files.wordpress.com/2020/11/zefitufoxagaxajejex.pdfIn PDF document text
    • https://nawazuled.files.wordpress.com/2020/11/wimosavex.pdfIn PDF document text
    • https://pukewakedal.files.wordpress.com/2020/11/gigutufexufegotumokixek.pdfIn PDF document text
    • https://jaxuxakom.files.wordpress.com/2020/11/pvifa_on_financial_calculator.pdfIn PDF document text
    • https://jasowumir.files.wordpress.com/2020/11/carlita_lagerfeld_dofus.pdfIn PDF document text
    • https://wemirosux.files.wordpress.com/2020/11/como_configurar_para_grabar_con_adobe_audition_1.5.pdfIn PDF document text
    • https://kotidudip.files.wordpress.com/2020/11/12235094125.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_off00006f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3B 5072 bytes
SHA-256: 96486f40364a841ae2e89cf5152e91f76ecd243d9bf6033100a966e9bce46c4c
font_01_sfnt_off00008084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8084 10040 bytes
SHA-256: 08ce062d028d5051687bdcddfa311af81c689064c4161b284e3cdff63ea49a7f

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