Malicious PDF — malware analysis report

Static analysis result for SHA-256 b35a0c1183174b93…

MALICIOUS

PDF

67.7 KB Created: 2021-02-18 04:56:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dd628a424b9adf834c282e5e7913c225 SHA-1: 15e31a09f077c6b68c62d8fa4f84f7ee1b83abd5 SHA-256: b35a0c1183174b93a818181fad2c14d22e4d44aecc295a06c7a305fcac1d739c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wb?keyword=aa%2012%20steps%20and%20twelve%20traditions%20pdf PDF link annotation
    • https://cdn.sqhk.co/vusutazomaga/jgjpiaf/yandex_disk_downloader_online.pdfIn PDF document text
    • https://cdn.sqhk.co/zijopenuxafi/uib7gip/itopod_perk_priority.pdfIn PDF document text
    • http://rodina38.ru/355709106979n7ui.pdfIn PDF document text
    • http://auto-agents.space/sifivoroxuponujibucr1y2.pdfIn PDF document text
    • https://cdn.sqhk.co/jenexovu/eQHVTjc/best_guide_for_bowling_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/dosojegomugu/baVhfgg/mymcps_portal_staff.pdfIn PDF document text
    • http://dostafood.xyz/24155303609tsili.pdfIn PDF document text
    • http://jushq.club/google_translate_apk_for_jio_phonepmuag.pdfIn PDF document text
    • http://teksalle.xyz/9790074757nn599.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxodokoju/ljghbig/63596563998.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/igjgehf/red_ball_adventure_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vefogisoj.epizy.com/vebeturokudubarizapimi.pdfIn PDF document text
    • http://birotizedu.epizy.com/425176359.pdfIn PDF document text
    • http://loluxemo.epizy.com/pitemapatovuxogupikix.pdfIn PDF document text
    • http://pamakejexo.epizy.com/yahoo_mail_windows_8._1.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_off0000cc61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC61 5360 bytes
SHA-256: 2e702bffb4401eb8003815466f8a19a8bbb66cfaf03ebe3f1e084f413c3c5859
font_01_sfnt_off0000decc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECC 10360 bytes
SHA-256: 43f758b6f702badba9b442c018eaa9ee5b77bd0569b2a599ca05c93818d63fe1