Malicious PDF — malware analysis report

Static analysis result for SHA-256 be7eb45494e7cc5b…

MALICIOUS

PDF

41.4 KB Created: 2020-11-08 19:05:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: e3acab2b7aeb39e63ea86797e1f12f10 SHA-1: f798b19d9a4b3112e48f5a85ffbbc43bafcf4a1e SHA-256: be7eb45494e7cc5b6aede6092df628c577f6f5a8ba41228c827adda4866beb7a
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://trafffi.ru/123?keyword=110+gallon+aquarium+setup PDF link annotation
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/vujoji.pdfIn PDF document text
    • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/mogilu_zalavibadiba_poniwarapodax.pdfIn PDF document text
    • https://kolerekum.weebly.com/uploads/1/3/4/3/134350376/maxemo.pdfIn PDF document text
    • https://bijasekimuku.weebly.com/uploads/1/3/4/5/134593614/7681257.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391903/normal_5f8f060383352.pdfIn PDF document text
    • https://meverofukibax.weebly.com/uploads/1/3/4/6/134620555/xajamofufojemo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/364d1a90-1ae4-4e4f-8e1d-e6e97475db32/lukaropiw.pdfIn PDF document text
    • https://sisiviweze.files.wordpress.com/2020/11/goresosuvufat.pdfIn PDF document text
    • https://pupirod.files.wordpress.com/2020/11/sagob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c254c314-60d6-4322-b982-c4ae83871365/15923881669.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_off00006097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6097 5364 bytes
SHA-256: 2d8d453e23f9e46a7098527ed11ff1d095c70ca287414b213b9f8a7c1fca1d37
font_01_sfnt_off000072c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C3 10924 bytes
SHA-256: 422e5e93a14f34abf6b8fc020ac420a196e6feedbb1519b3085bf7f0f6bb203b

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