Malicious PDF — malware analysis report

Static analysis result for SHA-256 de5378d74015b239…

MALICIOUS

PDF

41.0 KB Created: 2020-11-07 11:22:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: f4f013b9d933f78d2bc32fef008b9dae SHA-1: 1a45b6ec99f79e4d21d3b1083aa452e7180de22e SHA-256: de5378d74015b239108a7e54f1f1088d89b35ae5d7152e3b50cf4474230bfdad
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://trafficel.ru/aws?keyword=georgia+blue+card+certification+erosion PDF link annotation
    • https://loguxofe.weebly.com/uploads/1/3/0/7/130775118/210815b6d.pdfIn PDF document text
    • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/e52a51a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_5fa17a33ef003.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368495/normal_5f8776a5e6c19.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/bosumikigisefa.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/f895c9.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/4303443.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_5fa4a47ebb506.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372371/normal_5f93595562981.pdfIn PDF document text
    • https://donodofi.weebly.com/uploads/1/3/1/8/131856097/82408ca.pdfIn PDF document text
    • https://zadujemerumid.weebly.com/uploads/1/3/2/6/132695269/2270a771ab8a7e.pdfIn PDF document text
    • https://xuwirebusupedun.weebly.com/uploads/1/3/4/3/134379604/3086126.pdfIn PDF document text
    • https://gakuwalexutibok.weebly.com/uploads/1/3/4/3/134332976/6787100.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00005f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F71 5360 bytes
SHA-256: 5d10010a3b35d5ed426bba955c910787997d7ce8d85334dc8faeb8821ef59cd5
font_01_sfnt_off000071b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B9 10964 bytes
SHA-256: 0b37ed10f9f213afc8cd2061f0b8ce1c5ec1960880bff84989411e22fadece2d