Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6a92a34f2ce1cfb…

MALICIOUS

PDF

69.5 KB Created: 2021-02-24 23:18:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a2c97f5c496f6244f51814e41562258c SHA-1: f7dfbc60ba61c46e161b600529a58e2c18e00c42 SHA-256: b6a92a34f2ce1cfbf9419984d04696498128256be56aaad3c6c0e399754459fc
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://leonvi.ru/wix?keyword=generador+de+crucigramas+en+espa%25C3%25B1ol PDF link annotation
    • http://ropufogesuzazeg.iblogger.org/information_technology_job_description_small_business.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/belabaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366341/normal_60200a47692b4.pdfIn PDF document text
    • https://cdn.sqhk.co/sobupepokor/fjihhqz/one_parsec_in_star_wars.pdfIn PDF document text
    • http://blu-ital.space/knife_throwing_gamess39wj.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/ggzBjeu/23721482752.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/can_a_cracked_heat_exchanger_be_dangerous.pdfIn PDF document text
    • http://giwapozolaleg.mypressonline.com/nabelowaxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476577/normal_5ff3cd662bd70.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezitaxato/YjjThg5/pacific_beach_fire_department.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuxulabawiba.rf.gd/worksheet_food_pyramid.pdfIn PDF document text
    • http://mowigibimubepi.rf.gd/rojojivetasasit.pdfIn PDF document text
    • http://ligoroxenafof.atwebpages.com/bafenu.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/kokox.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/fizavaraz.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/koxisev.pdfIn PDF document text
    • http://povumuvepu.epizy.com/9336166111.pdfIn PDF document text
    • http://xirixoxixewop.epizy.com/77014450671.pdfIn PDF document text
    • http://nukilaba.myartsonline.com/53335883091.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_off0000ce89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE89 5636 bytes
SHA-256: 05a8b154003c3f546229ee66721c93a34c557f4e5dc793c9f58ed6d585837287
font_01_sfnt_off0000e15d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15D 11392 bytes
SHA-256: 236e1e1dd9db9e554f8908acc7fbbf1f2313061a884d94c076f7f389284e9ff4