Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a40df69d6b8f941…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 04:57:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a1be254f33aa1d11e7547d2cf3b65bf4 SHA-1: d548b4c406b001de50cab0e42e6a152ecdb46393 SHA-256: 6a40df69d6b8f94144c12d76d0aa642ab483790aa46d283682cbb74c53dc275c
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/award?keyword=what+is+autocad+plant+3d PDF link annotation
    • http://munasimowijuxi.getenjoyment.net/where_can_i_listen_to_the_harry_potter_books_for_free.pdfIn PDF document text
    • http://tuwafanumi.iblogger.org/13993918557.pdfIn PDF document text
    • http://texno3ua.com/encoding_and_decoding_matrices_worksheet4xp38.pdfIn PDF document text
    • http://lezeninimi.medianewsonline.com/diamond_razor_edge_compound_bow_specs.pdfIn PDF document text
    • http://remoliwagofaju.mywebcommunity.org/76259171833.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481402/normal_601b62dcbdc60.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/pentax_k30_vs_k500.pdfIn PDF document text
    • http://kinoxca.xyz/26730404789t1ltq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_6026a3f850e58.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://donafilozevore.rf.gd/36513201712.pdfIn PDF document text
    • http://beritoka.rf.gd/48355988911.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_off0000e0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D2 5244 bytes
SHA-256: 57ddd3a12cac8eccd6a65d887ae2ed01ccc36c45c844a531b950f5154a4a8195
font_01_sfnt_off0000f2b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B9 10564 bytes
SHA-256: 7d74917783b46ec5308aff9a9d1ec0a365b9d2cb1f7d266afbc326d3f7bb7a1a