Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e75063d75a6d17d…

MALICIOUS

PDF

36.3 KB Created: 2020-11-09 01:44:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 51b290438d3ae83a16b54fe5dfd2e712 SHA-1: 2d1fc8ed65dc5bcec89fb1116edaf171c530e2d9 SHA-256: 9e75063d75a6d17d2b4a52562d684f0fc959d6d0651132eab71f658aebeb2c31
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafffi.ru/aws?keyword=nuke+mod+minecraft+pe PDF link annotation
    • https://berajuvexoru.weebly.com/uploads/1/3/1/8/131860787/dasiniwakabe_viwiwolav.pdfIn PDF document text
    • https://dapunilak.weebly.com/uploads/1/3/4/5/134506399/sobilexerokal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384645/normal_5f991773d99fd.pdfIn PDF document text
    • https://viwezoluzuwa.weebly.com/uploads/1/3/4/4/134401695/rosutizidugivop.pdfIn PDF document text
    • https://mogijoduvide.weebly.com/uploads/1/3/0/8/130814471/lutuzire-bisadogapo-kukazijo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380700/normal_5f9dae4fd7a03.pdfIn PDF document text
    • https://basurujilitafap.weebly.com/uploads/1/3/4/5/134595952/7061221.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/1a9e72.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://rezekine.files.wordpress.com/2020/11/tatojesanawav.pdfIn PDF document text
    • https://zidudadeg565145698.files.wordpress.com/2020/11/formato_dc_3_en_word.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/airport_codes_download.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/dragons_of_atlantis_guide.pdfIn PDF document text
    • https://sogikukexe.files.wordpress.com/2020/11/bijoy_bayanno_activation_code.pdfIn PDF document text
    • https://mutozofe.files.wordpress.com/2020/11/67728004733.pdfIn PDF document text
    • https://tilidefixof.files.wordpress.com/2020/11/pursonic_cleaning_robot_manual.pdfIn PDF document text
    • https://virinumit.files.wordpress.com/2020/11/colores_de_los_chakras_y_significado.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_off00004e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E2F 5124 bytes
SHA-256: fa97aa4ea29dcbf01e44d998e297bddfba44619230b030138068c78df8f90720
font_01_sfnt_off00005f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F91 10876 bytes
SHA-256: 46095f16449e7090689caf1c7abc0c0bed89474a5fdad1817271fe868a26411d

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