Malicious PDF — malware analysis report

Static analysis result for SHA-256 c63e9fa12fbd0372…

MALICIOUS

PDF

68.5 KB Created: 2021-02-11 15:40:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a0158950a5bab6d6f53053239d3dac5a SHA-1: dafe332a1ec00036054ee11946484c330aaac10f SHA-256: c63e9fa12fbd037255f43d2410764f783f40790c93e993b6fafc34a4f9b1f6b7
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://bologen.ru/wb?keyword=subnautica%20wiki%20guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408712/normal_5fd1655bb114e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454299/normal_5feba0ed58f89.pdfIn PDF document text
    • http://vibawukukar.iblogger.org/4553943826.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/jcBBjd2/world_history_and_geography_ancient_civilizations.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424405/normal_6016480e01f25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379969/normal_601b275fd989f.pdfIn PDF document text
    • http://wazasutosas.iblogger.org/bazaar_iran_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472491/normal_5fee10b89c2b1.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/cHqRZoN/free_websites_to_download_music_videos.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/KfDRjdo/43103483166.pdfIn PDF document text
    • https://cdn.sqhk.co/duponetix/uIgfDhi/56196921425.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zazupixuwup.rf.gd/bedimofud.pdfIn PDF document text
    • http://serumisa.epizy.com/subaru_forester_2010_review_consumer_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/43141109970.pdfIn PDF document text
    • http://xaguxebijop.epizy.com/vaxujorigixijob.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_off0000d09f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD09F 5200 bytes
SHA-256: c17f019b5773fc3a743e34681e35c81571e0c4fc2fd53dde8d0c664f08dccead
font_01_sfnt_off0000e27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27A 10244 bytes
SHA-256: cf14e06c0c607f7e80ac4ec5ac5ad91b004dee12f9de24c6160fad4b9fba73d8