Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d87c0302c5ec62…

MALICIOUS

PDF

56.5 KB Created: 2020-11-06 18:03:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: cbbc1986bf524efe8f784d09c19fbca8 SHA-1: 265bf74bfd7e3346111bd9353693ee15afbf4907 SHA-256: 36d87c0302c5ec62535f4e25470f3af2295babad23c30058a0540d05aa7abdd1
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/aws?keyword=state+of+hawaii+2020+holidays+for+employees PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370275/normal_5f9847db42763.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377100/normal_5f97b34326ab2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407724/normal_5fa1a8e3b79f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416923/normal_5f9d98f99c1aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5f9908d3ed40f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://vadazigifexe.files.wordpress.com/2020/11/gopiv.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/new_practical_chinese_reader_3_answers.pdfIn PDF document text
    • https://tivolog.files.wordpress.com/2020/11/balada_de_amor_ao_vento_livro.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/iphone_6_remix_ringtone_download_2018.pdfIn PDF document text
    • https://pazeden.files.wordpress.com/2020/11/86767518253.pdfIn PDF document text
    • https://gomites309456149.files.wordpress.com/2020/11/14531476054.pdfIn PDF document text
    • https://sufuvuse.files.wordpress.com/2020/11/3074016501.pdfIn PDF document text
    • https://suvarofora.files.wordpress.com/2020/11/lodebukiworidu.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/speak_now_2_teacher_book.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/chanel_financial_report_2017.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_off00009c0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0B 5852 bytes
SHA-256: 18e5b2b278e50f750c757148df4159b0864755ec4d57d3c1f5e08d8649aa0f30
font_01_sfnt_off0000afdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFDF 10780 bytes
SHA-256: 108bc3eadaa7c8ada2e4cd15eb03b2e6eaf9b35da8e5e7a56d99e3ecbc7b788c