Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b2b912ead64e23f…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 05:35:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cacbc94a1b8edc33395ff097ac88cca8 SHA-1: 5122b9f91554480ef405a79636459d56d6d4aad1 SHA-256: 3b2b912ead64e23feaa196b6c48d4e8de65893dd8bce85f32aa73f433b7c654a
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://zajinet.ru/award?keyword=networx+nx-8v2+reset+code PDF link annotation
    • http://gakmancreatures.ru/kesitefifejopugikoleremuze0z16.pdfIn PDF document text
    • https://cdn.sqhk.co/molavagew/ihhB0jb/beli_pulsa_smartfren_via_m_banking_bca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413719/normal_6034796f38c01.pdfIn PDF document text
    • https://cdn.sqhk.co/zebimapajod/TEjpvhf/crossword_puzzle_word_games_free_redstone.pdfIn PDF document text
    • https://cdn.sqhk.co/sibamoxa/hfibijE/the_longest_game_ever_2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412408/normal_6026d5a4015d4.pdfIn PDF document text
    • http://zijozarub.mygamesonline.org/61961913857.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487413/normal_6025a0137e552.pdfIn PDF document text
    • https://cdn.sqhk.co/munemuzabuk/bTGhgji/business_ideas_to_start_in_kenya_2020.pdfIn PDF document text
    • http://unreguezff.rest/login_page_template_in_javascripti267s.pdfIn PDF document text
    • https://cdn.sqhk.co/legusovej/ievCghP/zakoxega.pdfIn PDF document text
    • http://eushopvmn.site/what_are_starbucks_cup_sizes1tnrp.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/du9jcYL/new_york_city_fc_players_salary.pdfIn PDF document text
    • http://xepidenad.scienceontheweb.net/tebesutem.pdfIn PDF document text
    • https://cdn.sqhk.co/nivunufozub/hggdSbL/50549594264.pdfIn PDF document text
    • http://alisabor.design/internal_and_external_angles_of_polygons_worksheetcp9mr.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/vizio_sound_bar_power_cord_best_buy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/divikufifir/how_to_make_a_peace_offering_to_a_boyfriend.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/42084184975.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_off0000e0f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F7 5240 bytes
SHA-256: f12eac3a891be1d6af5187860de7da32ad9c029e47f42587208ab1c7317f860e
font_01_sfnt_off0000f308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF308 10196 bytes
SHA-256: 66fbb4785d6f3d77eb9f5d099b94eb35e6a2fda194a7b330f2b5145b332703f4