Malicious PDF — malware analysis report

Static analysis result for SHA-256 81226f5fecde9168…

MALICIOUS

PDF

67.8 KB Created: 2021-02-17 11:10:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5f81ab97f875fc7346abb241ca49dc34 SHA-1: 699d161305535b63c9d5487affdd57f3fabcd313 SHA-256: 81226f5fecde9168175ebcbbfee3f83b7e0be7c9b03c6b8f3fcae46a8dc38375
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://seumenha.ru/wix?keyword=iso+to+wbfs+for+mac PDF link annotation
    • http://kagifosotumaden.iblogger.org/mind_control_techniques.pdfIn PDF document text
    • http://bowuxog.iblogger.org/billing_application_android_app.pdfIn PDF document text
    • http://jobauthor.online/who_viewed_my_profile_whatsapp_pro_apkiz5k5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413016/normal_5ff91dde539bb.pdfIn PDF document text
    • https://cdn.sqhk.co/wexovezojab/jchchfp/synchrony_car_care_credit_application.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471081/normal_5fe17bf6269d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465269/normal_600b46af0eb78.pdfIn PDF document text
    • http://on24-system.club/telenovela_a_madrastra_capitulo_603h3sv.pdfIn PDF document text
    • http://onesmall.space/airframe_and_powerplant_study_guideisrz3.pdfIn PDF document text
    • http://ketorebagibof.22web.org/60879792844.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://roruxarese.rf.gd/whatsapp_gb_terbaru_agustus_2019.pdfIn PDF document text
    • http://venakato.epizy.com/glossy_paper_label_sheets.pdfIn PDF document text
    • http://vevaluvorolimu.rf.gd/bulb_smash_latest_apk.pdfIn PDF document text
    • http://rinafuladimuk.epizy.com/54495698387.pdfIn PDF document text
    • http://putojeferef.rf.gd/costume_foam_sheets.pdfIn PDF document text
    • http://pajamenu.rf.gd/boosted_performance_kit_370z.pdfIn PDF document text
    • http://pesufebavarobi.rf.gd/marketing_information_system_kotler.pdfIn PDF document text
    • http://fibubaxuvuvixik.epizy.com/glucocorticoid_induced_osteoporosis_guidelines.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_off0000ce32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE32 5164 bytes
SHA-256: a0c4a3da00ad207ce0fce26b99c072fa506bb74eb8769ccdf10abe58abc2e95c
font_01_sfnt_off0000dfbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBD 10184 bytes
SHA-256: c0de74f87ec0c0c00d1070b96dc9a7f20f8821818e6ff58dc992b1b60185b440