Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb809d0efc3f236a…

MALICIOUS

PDF

72.3 KB Created: 2021-02-26 18:27:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 8277b8c61a741ca17ad97beb1a5f243b SHA-1: 49c54f809aba572ff99651b5394d0442cb67e004 SHA-256: bb809d0efc3f236a921e0287905dd87d4a1bb73bafa2ee4ebf5908eae5c01ad5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/award?keyword=hp+pavilion+dv7t-7000+service+manual PDF link annotation
    • http://vizazovabula.mywebcommunity.org/fossil_q_explorist_gen_4_bands.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/13713361293.pdfIn PDF document text
    • http://nazorizuz.medianewsonline.com/86533199609.pdfIn PDF document text
    • http://rasudilikid.mywebcommunity.org/short_stories_in_english_for_competition.pdfIn PDF document text
    • http://design-kvartira.info/linkin_park_breaking_the_habit_mp3_skachatfjaf6.pdfIn PDF document text
    • http://penageli.getenjoyment.net/wujuxevaxexuzog.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/sansa_clip_wont_charge.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451039/normal_6014d182a1be2.pdfIn PDF document text
    • http://dosijefa.mypressonline.com/problemas_de_la_educacin_en_mxico_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wemurabasuxekux.rf.gd/how_do_i_know_if_my_vizio_has_smartcast.pdfIn PDF document text
    • http://zudupaxub.myartsonline.com/how_to_change_battery_on_a_polaroid_camera.pdfIn PDF document text
    • http://dowuvoduwitovos.atwebpages.com/dekes.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/2007_6.0_powerstroke_turbo_back_exhaust.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_off0000ddec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDEC 5496 bytes
SHA-256: 6aff707af1f6253f87b93ea2b0e72f607193555cc3089552b52d6b9d15c43763
font_01_sfnt_off0000f099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF099 10720 bytes
SHA-256: 3509636d664aec8a4f28b8676b2d197b320fe3ce5d3617bb2cd5c7b8887d59bc