Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f56854fad6c3399…

MALICIOUS

PDF

67.6 KB Created: 2021-03-10 10:43:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4007474ffaac8181240c2bbd940d87be SHA-1: c1f96259e6ae53d134018d4ff18caefd364e7a94 SHA-256: 2f56854fad6c3399d7cae38ca7ad2603bdf73135b42cc4d8c2b0468b9a56ba3d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://leonvi.ru/wix?keyword=lina+cardona+md PDF link annotation
    • http://wurilozi.scienceontheweb.net/advanced_excel_course_in_hindi.pdfIn PDF document text
    • http://vumexovuvelafe.medianewsonline.com/24791048261.pdfIn PDF document text
    • http://tehnopolis.org/1794-ie8_installation_instructionsc9web.pdfIn PDF document text
    • http://gelokan.sportsontheweb.net/77140442094.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/5hgcnpN/90173309723.pdfIn PDF document text
    • http://rusakova.space/duforikurewexutam9uf39.pdfIn PDF document text
    • http://mitedujonajezed.scienceontheweb.net/how_do_you_make_red_mixing_colors.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446019/normal_6029eae60f5f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408718/normal_60446534e4f8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402517/normal_60228f6615d89.pdfIn PDF document text
    • https://cdn.sqhk.co/jokawefezo/fihgcwj/pitegiwe.pdfIn PDF document text
    • http://helper-badges.com/3262945388595f2v.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gumizaxewa.atwebpages.com/lupodulumituwetesolurar.pdfIn PDF document text
    • http://gubadif.myartsonline.com/73692661867.pdfIn PDF document text
    • https://70010cfe-69b1-4fe9-a336-bdfe2418dc1e.filesusr.com/ugd/f1d680_3979b3e0fc5446368308f3009dfb1bed.pdf?index=trueIn PDF document text
    • http://tirisesu.onlinewebshop.net/43983202029.pdfIn PDF document text
    • https://8c56b32b-3398-45d6-9c0b-b55146621f16.filesusr.com/ugd/6924eb_81d186e284fc46698d98ee68d6a656c9.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_off0000ce51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE51 4816 bytes
SHA-256: 07f96c336cbae9a135494cdddd4e59be72a687aa80b02f90a8a83fe65f6acb93
font_01_sfnt_off0000de9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9D 10184 bytes
SHA-256: a05102b487e1d45d8deea7cb87f6f60595736d63a56cfe887118f45370292247