Malicious PDF — malware analysis report

Static analysis result for SHA-256 db21603a176aeb7d…

MALICIOUS

PDF

40.7 KB Created: 2020-11-09 00:54:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 003cf2ddac3d8739690880e88ebdeb6f SHA-1: 66a83c792e17152a7a2fc07b54577344810512bf SHA-256: db21603a176aeb7db4ed99456f77c5acc5285629b44c8f0b7f10c01acbd3eac7
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/123?keyword=crock+pot+little+dipper+cheese+fondue PDF link annotation
    • https://nometiru.weebly.com/uploads/1/3/4/3/134379396/zegoniretit_mifiguzoxemaf_vadenisam.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/fb697f9d071.pdfIn PDF document text
    • https://gibitiwatu.weebly.com/uploads/1/3/0/7/130776060/fuxufix-tesafe-dafujanemapixog.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/71efe46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419826/normal_5f99ce372e093.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392857/normal_5fa78535c6a7c.pdfIn PDF document text
    • https://rosofofupamufi.weebly.com/uploads/1/3/4/3/134364257/sisizapeja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403681/normal_5f91601500088.pdfIn PDF document text
    • https://tedomidile.weebly.com/uploads/1/3/2/7/132712102/e1ccaa73.pdfIn PDF document text
    • https://jevalibiku.weebly.com/uploads/1/3/4/2/134266190/sejulako.pdfIn PDF document text
    • https://nogulumu.weebly.com/uploads/1/3/4/4/134476008/13c04a.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/8f5366ea-4ed2-42e3-8915-6bfb69e9da28/rabezawetulem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ab1a6e6-2740-430c-8dbc-72439fd60441/xazaligabenuxevimuteku.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_off0000612f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612F 5004 bytes
SHA-256: a8cdb1316e4610cd59ffe8b6bcc5119c345d17195ca15f1b4bf6ac9cc712fb11
font_01_sfnt_off0000722e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722E 10676 bytes
SHA-256: 2c01a2578aa80b1354a124ff4de3c2a8156398b2156e47aa58f2a5137efdf201