Malicious PDF — malware analysis report

Static analysis result for SHA-256 35c18539bce9dad9…

MALICIOUS

PDF

68.7 KB Created: 2021-03-18 04:50:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7468dcd2f4692118c1a74a7904667d00 SHA-1: 4e28ae0ecffa50c93db56a5e3c5b7b8099fcc0be SHA-256: 35c18539bce9dad9a392fa32a512d3d7626e78cc8b455724ae2ada65fbf6ec37
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://maypoin.ru/wix?keyword=logitech+z130+speakers+manual PDF link annotation
    • https://cdn.sqhk.co/ribovonubod/hghfjfq/kefomaguwaxaseful.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418584/normal_6005e48a0ba25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421782/normal_5ffaa2b97a073.pdfIn PDF document text
    • http://kameregeperiwaz.22web.org/lehigh_valley_weather_report.pdfIn PDF document text
    • https://cdn.sqhk.co/bulegumu/jhUiahf/tvix_trading_strategy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411717/normal_5fd33080f04ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380070/normal_60359295b2603.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494893/normal_5ffc667981a6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377925/normal_604d255bdbf00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410194/normal_6048f1c08e44c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470841/normal_602938d76306a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374359/normal_5fc71044bf50e.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/wubasogo.pdfIn PDF document text
    • http://gonakasuzoze.22web.org/american_history_museum_dc_map.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6d428a25-da86-44fa-8f13-5b0f09742281.filesusr.com/ugd/3649d2_41be9069aafe4a569f55ac47e83a01e7.pdf?index=trueIn PDF document text
    • http://xutenasejubibe.atwebpages.com/catena_mundi.pdfIn PDF document text
    • http://laxufazekez.atwebpages.com/50297840013.pdfIn PDF document text
    • https://43081b45-6e48-4b43-b724-9328fda377ae.filesusr.com/ugd/26481d_a8890238379141dc84a4e9facd47a3ac.pdf?index=trueIn PDF document text
    • https://f421159b-d329-41e8-bc42-072bc93e4c50.filesusr.com/ugd/65d6f7_d29df87d14cf483796aad9ed5245cbe1.pdf?index=trueIn PDF document text
    • http://zefesuk.epizy.com/xoketanufijidize.pdfIn PDF document text
    • https://cc652f91-b1ab-470c-b36f-46d838ef85b2.filesusr.com/ugd/fbccce_5e997d01070f43cfa5d8a2d9de5cb01e.pdf?index=trueIn 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_off0000ced4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED4 5760 bytes
SHA-256: 0d0cd34ecd7c8a29abd36d1e99686dad57d798e5bef25a0cf4fab96af37035ed
font_01_sfnt_off0000e25c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25C 10328 bytes
SHA-256: bf1b7e422bc9051987737b354c3f2d60db7e0fa32475a1c86deda239c755bcce

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