Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b84f6890d3c7b1…

MALICIOUS

PDF

70.7 KB Created: 2021-02-25 17:49:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 843bae7b4497e076713fdd35defb2351 SHA-1: 549a13f164d584cd8106c1271ef041946340664e SHA-256: 10b84f6890d3c7b13bb9624ec0db1da782f9087604b7a0d2d0f91f0e7f8109be
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/award?keyword=how+to+replace+lost+hawaii+state+id PDF link annotation
    • http://milawigigobo.iblogger.org/does_walmart_grocery_delivery_take_food_stamps.pdfIn PDF document text
    • http://delinapod.mypressonline.com/73534693193.pdfIn PDF document text
    • http://maximizator.xyz/57763425739m4k2x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378153/normal_5feb9c7f94e3d.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/asp.net_mvc_tutorial_w3schools.pdfIn PDF document text
    • http://leledup.mypressonline.com/mabubeju.pdfIn PDF document text
    • http://beach-fruit.fun/rpg_online_androidqqz86.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484359/normal_5fde2a056022e.pdfIn PDF document text
    • http://tejovotemikodes.getenjoyment.net/gufewurugolanuledutedogi.pdfIn PDF document text
    • http://jazeforip.22web.org/wananewajumas.pdfIn PDF document text
    • http://znohist.site/83440539684qis3j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414161/normal_6032d49f4616d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rivenoke.onlinewebshop.net/formato_de_nmina_en_excel_para_descargar.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/kitchenaid_stand_mixer_cover_diy.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/best_international_law_school_in_the_world.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_off0000d7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BC 5212 bytes
SHA-256: 8778bb5f3fa3233f525d97c1a50b90f78576c05e1077dc12d12831b1ae473718
font_01_sfnt_off0000e978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE978 10660 bytes
SHA-256: d8b1fc5547bfd4c9f9db9802acfd33eedee17eae3a541e8d53c75824ad40f426