Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 c753ecf4c378d739…

MALICIOUS

PDF / .VIR

381.8 KB Created: 2023-03-04 19:38:08 Authoring application: Mobipocket Creator First seen: 2024-04-16
MD5: 938c72c53a7ab56100c8244e5492cc53 SHA-1: e7d291dd10c110956186814f17b913f7b5a9fe13 SHA-256: c753ecf4c378d7395596eae6ea81631ceb44913f529d25c17a63955c44e725dc
104 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9423

Heuristics 5

  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com.lb/ddm/clk/408405163;208572896;n;;%3F//conhecimentos-bancarios-brb-pdf.xoluvozete.sbs/wiv.pdf In PDF document text
    • https://livre-thomas-pesquet-la-terre-entre-nos.luguvini.cfd/wurevubunu.pdfIn PDF document text
    • https://livros-de-luckesi-em-pdf.jetojuxiv.cfd/773.pdfIn PDF document text
    • https://ter-o-das-santas-chagas-em-pdf.nojuzowe.cfd/kokobusuv.pdfIn PDF document text
    • https://silab-rio-complexo-para-imprimir-pdf.biwilep.cfd/xujovutegotuwok.pdfIn PDF document text
    • https://jalefepolef.mizulujo.cfd/movepapu.pdfIn PDF document text
    • https://adservice.google.com.co/ddm/clk/445204615;249060672;c;;%3F//aury-lopes-jr-direito-processual-penal-p.wabuwibup.cfd/867.pdfIn PDF document text
    • https://adservice.google.com.vn/ddm/clk/478229754;284365575;c;;%3F//jipaniji.bauservice-miller.de/926.pdfIn PDF document text
    • https://adservice.google.gl/ddm/clk/310682673;138356009;g;;%3F//tezosumuda.oldtimersclocks.com/xugotinob.pdfPDF link annotation
    • https://adservice.google.ro/ddm/clk/466651624;272226156;i;;%3F//jalitoniko.wifejijad.cfd/295.pdfIn PDF document text
    • https://adservice.google.st/ddm/clk/300948314;127869103;e;;%3F//ensinamentos-b-sicos-de-umbanda-pdf.wilezopera.cfd/juxusibi.pdfIn PDF document text
    • https://adservice.google.gm/ddm/clk/424929466;226923624;r;;%3F//regras-do-jogo-pdf.kuwavarav.cfd/3410402.pdfIn PDF document text
    • https://adservice.google.com.ua/ddm/clk/310682673;138356009;g;;%3F//exercicios-de-pontua-o-com-gabarito-pdf.jifidez.sbs/504238.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_off0005b7cd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005b7cd.bin)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7CD 18628 bytes
SHA-256: f461df3b950591706a86368c4948f7e065fed77d642aa6569558fa129b4ac808