Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6f5195619bd8984…

MALICIOUS

PDF

72.3 KB Created: 2021-02-26 21:06:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 23609cf7e7f28e9d2c85a94809a98a46 SHA-1: c0389d66a41fdf3dad05a6fcc0ef13e5a8664c70 SHA-256: d6f5195619bd8984301b47f6a76c324b030e2cd127f1ff7bf5de3010ac7177d6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=dyson+ball+vacuum+user+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484143/normal_5fcaef7f398ed.pdfIn PDF document text
    • http://albl.ru/40255918003ug8nv.pdfIn PDF document text
    • http://puvepum.getenjoyment.net/data_warehouse_architecture_is_based_on_sql_server.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468554/normal_5ff610dc3f5a3.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/VFQvTid/3933822744.pdfIn PDF document text
    • https://cdn.sqhk.co/zapusukajev/ujco3pY/nilazobagexigozirisuvojem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403120/normal_5fd97bfacef60.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/wusigipufuvowix/jabeg.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/cambridge_book_10_listening_test_4_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/divuzujeregukuturogo.pdfIn PDF document text
    • http://donijexufenu.onlinewebshop.net/kayla_itsines_ab_workout_cosmo.pdfIn PDF document text
    • http://vujapoguxesak.myartsonline.com/percy_jackson_the_titans_curse_book_summary.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_off0000df1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF1F 5244 bytes
SHA-256: f8f9a74082a68ad50fd7416a9f58e3b8ab637e81ddbdea5184acd81503234d46
font_01_sfnt_off0000f0f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F6 10504 bytes
SHA-256: d846d63fbb0d600d5738f0d76dd882c5ebdd982f10e0bdf266dfef19fd7449d1

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