Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4df272a035e43e3…

MALICIOUS

PDF

73.1 KB Created: 2021-02-28 00:28:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c4c95c784acd8e44e7b565a36ce4f3ac SHA-1: 8d1bb6788bfe9b9953a427c4a4de7e1e04f3ba63 SHA-256: d4df272a035e43e3afc6ba459a4739bf918566f902a2a12f74233324f4a42b59
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=spanish+2+review+games PDF link annotation
    • http://store50off.info/houghton_mifflin_harcourt_collections_grade_81qq5o.pdfIn PDF document text
    • http://investorlands.ru/zefepalolixazisowixijazoxfav5.pdfIn PDF document text
    • http://japancar-sib.ru/58431112882yyk52.pdfIn PDF document text
    • http://wildboost.club/54569380114gc22x.pdfIn PDF document text
    • http://ek-arenda.ru/16193811037khed2.pdfIn PDF document text
    • https://wofugegiperezaj.weebly.com/uploads/1/3/4/5/134528457/xuxerixixawem.pdfIn PDF document text
    • http://help-ruleviolation.com/boss_ve-20_vocal_performer_manualy723u.pdfIn PDF document text
    • http://pomirkapa.site/hollywood_animals_movie_tamil_dubbed_free9vr5k.pdfIn PDF document text
    • https://juvuvekogowara.weebly.com/uploads/1/3/1/8/131856935/8912862.pdfIn PDF document text
    • http://hookup682.site/html_css_javascript_portfolio_templatesquyxq.pdfIn PDF document text
    • https://sowibize.weebly.com/uploads/1/3/5/3/135348762/wabomawop.pdfIn PDF document text
    • http://akfb.online/sumidapaludoperexugobiobfrw.pdfIn PDF document text
    • http://latencfsrt.space/eotech_512_green_reticlev4ol8.pdfIn PDF document text
    • http://potolkilife.ru/vewupefabopuwuwuza05x.pdfIn PDF document text
    • http://vehicleusains.com/38810012956uhvmk.pdfIn PDF document text
    • http://agent-ritual495.online/appsc_group_2_previous_papers_with_answers_in_english152tr.pdfIn PDF document text
    • https://baxovazexozubuv.weebly.com/uploads/1/3/4/3/134318553/46fff473.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/sewamos/domut.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/ibps_rrb_notification_2019_freejobalert.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_off0000e1e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E4 5588 bytes
SHA-256: 5f2d2f76d61fe10d1cb7f7e39af38b70f20732c5091554148ad1a2395cef34d4
font_01_sfnt_off0000f4d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D4 10172 bytes
SHA-256: 968a81b1828026c527f0fa269d4eebcbf2de7d1a36b9bf19867b9cb91e74c079