Malicious PDF — malware analysis report

Static analysis result for SHA-256 df66d9cb5818b21a…

MALICIOUS

PDF

37.9 KB Created: 2020-11-06 23:13:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 3c597b005d4845e43de19e826cdaf1c6 SHA-1: 91abdb83bcb8c950d661d5a757a1d460f53acc69 SHA-256: df66d9cb5818b21ab9eebe99c42e32c5fb7a7e41f067bb9a5bcc6adaf91accc5
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/aws?keyword=evidence+that+demands+a+verdict+study+guide PDF link annotation
    • https://gerapulopenun.weebly.com/uploads/1/3/4/5/134587141/1045500.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/7052517.pdfIn PDF document text
    • https://vabejodero.weebly.com/uploads/1/3/4/3/134378136/886117.pdfIn PDF document text
    • https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/vivis_mozirisamewo_xolijex_panulurebu.pdfIn PDF document text
    • https://farukipem.weebly.com/uploads/1/3/4/4/134473356/7687a2b80f63dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390659/normal_5f955954876f3.pdfIn PDF document text
    • https://zoludapi.weebly.com/uploads/1/3/4/5/134528767/sobove.pdfIn PDF document text
    • https://fofafobef.weebly.com/uploads/1/3/4/3/134349457/8804624.pdfIn PDF document text
    • https://foxagizak.weebly.com/uploads/1/3/4/3/134332010/saguloxalinidoxil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380379/normal_5fa2963372df2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/scarborough_dump_site_hours.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/losis.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/draft_horses_for_sale_in_ohio.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/56679048056.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/33449623948.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48CE 5212 bytes
SHA-256: 07de032f35476ae76475bbc931aee3703981efbf56f23207be71b8f53833d966
font_01_sfnt_off00005a5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5B 9828 bytes
SHA-256: 9242a339e245dc5b06f081d90ee9e713c0d7c28095870eae7f660b5bd656c4de
font_02_sfnt_off00007bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFF 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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