Malicious PDF — malware analysis report

Static analysis result for SHA-256 158fdcb012b1522b…

MALICIOUS

PDF

71.7 KB Created: 2021-02-27 19:01:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 334ede97302f59ac0e95ca4a849164f9 SHA-1: b3b8847f7185226dd4a96eb1bba45d0bd98d2dd0 SHA-256: 158fdcb012b1522bc2855958465ee4945075827f33d4a14bb625da117e426485
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://vilenefex.ru/wix?keyword=lewis+dot+diagrams+worksheet+answers+instructional+fair PDF link annotation
    • http://sevagawos.getenjoyment.net/rinnai_rh180_problems.pdfIn PDF document text
    • https://cdn.sqhk.co/bagadogod/ywcRicL/68590686874.pdfIn PDF document text
    • https://cdn.sqhk.co/dodanadofu/Ussgiic/roblox_promo_codes_list_for_robux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390659/normal_6006a0a1e1ef1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496153/normal_602ea6444d022.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497078/normal_6011aa999da1c.pdfIn PDF document text
    • http://gubixazolela.sportsontheweb.net/jumelitanu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494673/normal_6025b0218961c.pdfIn PDF document text
    • https://cdn.sqhk.co/tesigasefaxe/eHa8ghh/bubble_tea_house_near_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492588/normal_5ff1667b7aba8.pdfIn PDF document text
    • http://xipulax.iblogger.org/schwinn_ad2_airdyne_bike_canada.pdfIn PDF document text
    • http://zutatowatipo.mywebcommunity.org/zibebi.pdfIn PDF document text
    • https://cdn.sqhk.co/jerivudofin/giaFAcC/xagupo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dobesogum/dubozanon.pdfIn PDF document text
    • http://zepaxawom.rf.gd/40163808166.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/76768539404.pdfIn PDF document text
    • http://lununobasafino.rf.gd/calendar_invite_meeting_template.pdfIn PDF document text
    • http://webidiwotew.epizy.com/xupus.pdfIn PDF document text
    • http://guxejusoselota.myartsonline.com/sistema_endocrino_que_es.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/muzamefiv.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_off0000dc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC39 5532 bytes
SHA-256: cefd2db7cd37b26c0944e633920fb3f93b23a4622afccba986572d67c093aa2e
font_01_sfnt_off0000eeff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFF 10000 bytes
SHA-256: ec7de5a0729f2e46e220bdc49fe1f176745d83316dd42a06d607e38947264ea9