Malicious PDF — malware analysis report

Static analysis result for SHA-256 923701a65e383efd…

MALICIOUS

PDF

73.8 KB Created: 2021-03-02 20:10:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e37bdbb39ea12fa4c873b96ce200f849 SHA-1: 02ab9df3b7be5db58b0c603b5c4f14b57523887d SHA-256: 923701a65e383efd97a1df1c1a0459ab7ab94f897f92c0b143ec4ed8e136dd00
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/award?keyword=night+shift+brewery+everett+dog+friendly PDF link annotation
    • http://sijubuwejipamun.mywebcommunity.org/burger_king_spicy_chicken_sandwich_jr_calories.pdfIn PDF document text
    • https://ragurinibobuma.weebly.com/uploads/1/3/3/9/133986244/244e58f59a5.pdfIn PDF document text
    • https://cdn.sqhk.co/rawavuzom/WSujhgj/cm_rewards_app_apple.pdfIn PDF document text
    • https://cdn.sqhk.co/fevazufalul/YihhjjQ/52637469013.pdfIn PDF document text
    • https://cdn.sqhk.co/sizozizaj/hjf5NJg/hard_boiled_egg_calories_diet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486775/normal_600144378c59c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408479/normal_6022cc39e02e9.pdfIn PDF document text
    • http://clobuss.ru/definicion_de_tabla_peridica_de_los_elementos_qumicose4920.pdfIn PDF document text
    • http://piwulag.sportsontheweb.net/potototatomawigotu.pdfIn PDF document text
    • http://hookup754.fun/what_is_the_best_example_of_a_vestigial_structurectwps.pdfIn PDF document text
    • https://wetexojozow.weebly.com/uploads/1/3/0/7/130740218/96faaec40.pdfIn PDF document text
    • https://lufisadoxusixa.weebly.com/uploads/1/3/4/5/134583632/togeralivadavu-komeken-fokujada-vajumolurizuke.pdfIn PDF document text
    • http://senogibe.iblogger.org/fitted_sheet_queen_extra_length.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kovawasokagi.epizy.com/kiviragomiliwalovilu.pdfIn PDF document text
    • http://jexusapije.epizy.com/cast_android_screen_to_laptop_ubuntu.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_off0000e4f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F2 5320 bytes
SHA-256: 3d103e9ef4d610089145c17ed40518bc324602f4257420676ec932f80e08e091
font_01_sfnt_off0000f72c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72C 10300 bytes
SHA-256: 04dbd95bab0f591a95d6fc5b1632e23e5664ee39278d2f0c984b50c810151768