Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 47efb33342c64227…

MALICIOUS

PDF / .VIR

563.5 KB Created: 2023-08-08 17:47:42 Authoring application: Karbon First seen: 2024-05-12
MD5: d687b44150924aaf06289221dd0c718d SHA-1: ddbad41dd23c141483e713b5a36b7b291122af1b SHA-256: 47efb33342c64227a59c81b7a1b5fec6998ae353ea139ab52bced599a2acd960
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

Heuristics 5

  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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://adservice.google.co.cr/ddm/clk/426382440;228185261;d;;%3F//woxegul.hartz-4-aktuell.de/465.pdf PDF link annotation
    • https://adservice.google.com.pa/ddm/clk/295204063;122181591;w;;%3F//wavaxub.rewozogu.cfd/201.pdfIn PDF document text
    • https://adservice.google.com.sv/ddm/clk/425484003;227454619;f;;%3F//gomorra-caroline-andrade-pdf.samumif.cfd/6755810.pdfIn PDF document text
    • https://etoile-du-nord-livre.xogitaf.cfd/tozemilajuxovedaw.pdfIn PDF document text
    • https://adservice.google.com.mm/ddm/clk/310682673;138356009;g;;%3F//opera-es-com-n-meros-decimais-exerc-cios.wazanidid.cfd/dijunopepugevi.pdfIn PDF document text
    • https://adservice.google.com.sv/ddm/clk/478229754;284365575;c;;%3F//bojix.gubofojak.sbs/todizigemado.pdfIn PDF document text
    • https://media-analysis-techniques-6th-edition-fr.mekajexog.online/90.pdfIn PDF document text
    • https://minecraft-yacht-bauen.vusijax.sbs/30.pdfIn PDF document text
    • https://premier-crossword-puzzle-answers.jarigoju.cfd/70.pdfIn PDF document text
    • https://adservice.google.com.tr/ddm/clk/466651624;272226156;i;;%3F//detidinepijo.foretupeg.cfd/189.pdfIn PDF document text
    • https://adservice.google.ki/ddm/clk/426382440;228185261;d;;%3F//the-magic-fish-pdf.rivopor.sbs/2616828.pdfIn PDF document text
    • https://adservice.google.bf/ddm/clk/478229754;284365575;c;;%3F//vofilawos.xizojomo.cfd/481.pdfIn PDF document text
    • https://adservice.google.is/ddm/clk/310682673;138356009;g;;%3F//kumuvidiboke.bolojujuve.sbs/93.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00089874.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00089874.bin)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00089874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89874 15556 bytes
SHA-256: 20f879ddb1f9ac6b35360a711793ac414ded6dad44740fea2c3aadf3c149fa2d