Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2683c2717f4f399…

MALICIOUS

PDF

76.5 KB Created: 2021-02-04 10:43:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 14007c067cdaef4a5d07fce3ac5d8099 SHA-1: 838eac389cdd58aef1a545e6b1302d481c3f2898 SHA-256: a2683c2717f4f3993b0e6aca8fa87017f1f8561b6663ca524deec4948cc4a1cf
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wb?keyword=bazinga%20game%20template PDF link annotation
    • https://cdn.sqhk.co/lojumisebu/hh8Jgf3/iphone_notification_ringtone_download_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/xozirijor/gjHxoGo/kinder_surprise_easter_eggs_uk.pdfIn PDF document text
    • http://xtina.online/bacterias_fermentadoras_de_lactosarj1cm.pdfIn PDF document text
    • http://remontnatali.ru/pekapirekikopeparoujtxp.pdfIn PDF document text
    • http://tameeniraq.com/cartesian_plane_worksheetpe14v.pdfIn PDF document text
    • http://matroskin.space/reset_recent_files_mact8760.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxujakosepa/jajikic/football_star_academy_canberra.pdfIn PDF document text
    • http://hookup157.online/plochy_solar_charger_user_manualnwq0y.pdfIn PDF document text
    • http://leqqurint.online/fimutosunubenemadao7un5.pdfIn PDF document text
    • http://megantv.site/30673394670yr8of.pdfIn PDF document text
    • http://twoup-viktoria.online/poniva4hdtn.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/apv8iiJ/dealer_s_life_lite_pawn_shop_tycoon_premium.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://disetorabagubed.epizy.com/wekofewujiwugo.pdfIn PDF document text
    • http://fepesori.rf.gd/xebav.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/90635699602.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_off0000f091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF091 4964 bytes
SHA-256: 233a0a632a351e3cc91aac3cc6fe9529ad6b8f63f4c66ae779d840b344fe82d8
font_01_sfnt_off00010173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10173 10576 bytes
SHA-256: 1ee9efd130987c81310c27d951af35d3ab72c9a8a1b6f447c291ceda2be2645e