Malicious PDF — malware analysis report

Static analysis result for SHA-256 46282df4e1483da0…

MALICIOUS

PDF

73.2 KB Created: 2021-02-09 12:51:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 53cd92bba5877a86dcb6d89eec4e6a4b SHA-1: 908b62caf141f2ec39697a7f929fba665f37750c SHA-256: 46282df4e1483da03efaf3bbcb0273c609f78f5f560fafbdb2bd31aa5846cecc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/wb?keyword=kindle%20cloud%20reader%20to%20pdf%20reddit PDF link annotation
    • http://8bitbeardsco.com/xijobivemajebawavalizafuq9jqv.pdfIn PDF document text
    • http://immortal-sho.club/resistors_in_series_and_parallel_worksheet_answers8c3wy.pdfIn PDF document text
    • https://xisasuwida.weebly.com/uploads/1/3/4/4/134472621/68109725.pdfIn PDF document text
    • https://cdn.sqhk.co/xituvusaw/TiigiHs/movie_box_office_full_hd_movies_free_watch.pdfIn PDF document text
    • https://gupapuna.weebly.com/uploads/1/3/4/7/134726568/peziwe.pdfIn PDF document text
    • https://vidokabotofasi.weebly.com/uploads/1/3/4/8/134868814/c0d813aa102e.pdfIn PDF document text
    • https://vawudida.weebly.com/uploads/1/3/4/8/134890241/tajuvowigawutajuze.pdfIn PDF document text
    • https://cdn.sqhk.co/mapibeze/ghgghgh/zombie_fighter_game_download.pdfIn PDF document text
    • https://zunexoxefa.weebly.com/uploads/1/3/5/3/135340588/ef3871050092ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495264/normal_5ff8ffb1a404a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494874/normal_5fdc1cf01cb64.pdfIn PDF document text
    • https://ledunadexaw.weebly.com/uploads/1/3/0/7/130775166/3677077.pdfIn PDF document text
    • http://item-get.top/bamaparovanovuuhlfw.pdfIn PDF document text
    • https://vakurizilobiwil.weebly.com/uploads/1/3/0/9/130969742/piduforape_jiwifogoxax_vozazakob_gunujaku.pdfIn PDF document text
    • https://bamewubi.weebly.com/uploads/1/3/2/3/132303354/3704298.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_off0000e3ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EA 4940 bytes
SHA-256: 04e65c57a9c64fcc310ac841b1bb0df6e553cf5e015b8aeed85e1e7fb328188a
font_01_sfnt_off0000f4ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CA 10324 bytes
SHA-256: fe63060a3aec81bc74e1d2486994586b83a878c4f500240950eabb990ec81d00