Malicious PDF — malware analysis report

Static analysis result for SHA-256 a979c07a2bfe6f71…

MALICIOUS

PDF

40.2 KB Created: 2020-11-07 13:13:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 9f05451936eb9e4a8b187e2c2e7da10d SHA-1: d57e1914d798362bf6c5ba4479c2fb2234cd4e19 SHA-256: a979c07a2bfe6f7191c4e340cbb418756a8fca425f1cf10748c91f4bc2ca04c7
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=auxiliary+view+creo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387918/normal_5f8fc44140b41.pdfIn PDF document text
    • https://xopigitit.weebly.com/uploads/1/3/4/3/134339451/fosajaga.pdfIn PDF document text
    • https://basuxebuj.weebly.com/uploads/1/3/1/3/131379820/68744b.pdfIn PDF document text
    • https://japewilipo.weebly.com/uploads/1/3/4/4/134471591/a9634.pdfIn PDF document text
    • https://baxojozejaxofo.weebly.com/uploads/1/3/4/5/134586757/1261609.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379726/normal_5f9fff989ef19.pdfIn PDF document text
    • https://kajipeluvo.weebly.com/uploads/1/3/4/3/134318391/5c57e.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/1dd6a527-5263-40bd-95ff-3cf37fe58f27/chapter_14_study_guide_quizlet_us_history.pdfIn PDF document text
    • https://bosuwepaxe.files.wordpress.com/2020/11/12568925802.pdfIn PDF document text
    • https://zojemadej.files.wordpress.com/2020/11/73587489466.pdfIn PDF document text
    • https://pafegum.files.wordpress.com/2020/11/xumakosokidazok.pdfIn PDF document text
    • https://mutozofe.files.wordpress.com/2020/11/67728004733.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39426efe-eef5-4869-9d01-d43fc707347f/celta_vigo_vs_real_madrid_live_commentary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f5ef41b-d854-45d7-86fd-4827d3801d3d/21127996315.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46c87f83-7800-4c68-87ed-3e566269a5c5/24522243127.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_off00005f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2F 4928 bytes
SHA-256: 95a6316ff21c829776354ba581503f77fb781d026dfe36fe14f79794fa74c8f9
font_01_sfnt_off00007020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7020 10576 bytes
SHA-256: cec2b758b74d6859d430d7cdb0321fb7d93143808adc07be927975d463088192