Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5c3403fc85b4c42…

MALICIOUS

PDF

61.8 KB Created: 2021-02-22 18:17:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: db7384f0d413d068eebde9823cf0ae08 SHA-1: c407361044323bec5d687443753c8c440ab71a4f SHA-256: b5c3403fc85b4c425f6e4dd98c467469e2d301c7e411d059397cb803414ae443
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://baarspo.ru/wb?keyword=woods%20wion%20light%20switch PDF link annotation
    • http://mpvideo.org/bts_best_songs_playlist2yddf.pdfIn PDF document text
    • https://cdn.sqhk.co/goxejake/hihe1sT/real_bike_racing_download_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wifinalimow/Wjdargg/laduwovesiwovewa.pdfIn PDF document text
    • http://lovechat24.club/sapitimetelegatimev0ia6.pdfIn PDF document text
    • https://cdn.sqhk.co/xeloxilava/fgdkjdI/gravity_trampoline_park_snellville.pdfIn PDF document text
    • http://unreguezff.rest/baby_mine_dumbo_piano_sheet_music5dnlu.pdfIn PDF document text
    • http://sberbank.services/vincero_chrono_s_user_manual2pc1v.pdfIn PDF document text
    • http://1gusevshop.space/jigisq7znp.pdfIn PDF document text
    • http://goodsun.fun/44540701740mosb2.pdfIn PDF document text
    • http://bhd-management.space/192463240633dwfh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fobapisarut.epizy.com/ginodaliruburomulevojinax.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/alien_lanes_guided_by_voices_full_album.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/free_audacity_for_windows_8._1.pdfIn PDF document text
    • http://laroruteze.epizy.com/zudivizenobuteriwegew.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/uglys_book_2020.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_off0000b624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB624 5000 bytes
SHA-256: 8ed827b9acaeee6e74c616e8f710cd8e047bb6884ed1dca142a5036f13b25402
font_01_sfnt_off0000c742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC742 9844 bytes
SHA-256: 165197d5d72831a15cb6680c9a43659cc8a5457722c8ca178ab6a62cf488875d