Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a238c5045179788…

MALICIOUS

PDF

73.0 KB Created: 2021-02-25 12:44:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 66a5015cff8301ecfc2ee78cc1c4b7ad SHA-1: de711c77289dcec047813fb95be8839d506240bb SHA-256: 8a238c504517978864bba0b74030cfe295ef03023c642049636415c759869957
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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/strik?utm_term=the+go-giver+review PDF link annotation
    • http://pazadixokumox.sportsontheweb.net/foxit_reader_print_multiples.pdfIn PDF document text
    • http://indir-kazan.com/unified_products_and_services_franchise_reviewnzrkf.pdfIn PDF document text
    • https://cdn.sqhk.co/xotosira/sZgibjh/idle_hero_defense_guide.pdfIn PDF document text
    • https://zasiranel.weebly.com/uploads/1/3/4/5/134507270/gonewunafetemir-vaviz-gufifale.pdfIn PDF document text
    • http://dogalijun.scienceontheweb.net/how_to_evaluate_a_toastmasters_meeting.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezitaxato/hbyJahg/pozilutiwenumusesomafige.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/moen_sink_faucet_parts_diagram.pdfIn PDF document text
    • https://sudororurupe.weebly.com/uploads/1/3/4/6/134602833/lawoloxomosu.pdfIn PDF document text
    • http://nature-ital.space/btech_malayalam_full_movie_cinemavillaqdxht.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479235/normal_5fce077483a6d.pdfIn PDF document text
    • http://sewonmedix.ru/corn_coloring_sheets_free_printables8cpyo.pdfIn PDF document text
    • https://cdn.sqhk.co/dewavasese/a0fAeKl/39472640700.pdfIn PDF document text
    • http://shoop-fn.ru/30605776328cp4na.pdfIn PDF document text
    • http://artelamp.store/xonazovi20fvm.pdfIn PDF document text
    • http://thegogiver.com/wp-content/uploads/2016/02/The-Go-Giver-video-youtube.jpgRecenIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://muvalinifotu.rf.gd/best_free_bike_computer_app_for_android.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_off0000df17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF17 4660 bytes
SHA-256: 1d712e8a491f0af71c40157865dd2af227a04eb6e67972990a092e401f23a087
font_01_sfnt_off0000ef0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0B 14996 bytes
SHA-256: 8a0429e7edf7eaaee930e62dd3dcbfd577886665a7c2b7f4feccad86014730bf