Malicious PDF — malware analysis report

Static analysis result for SHA-256 819d5b2c12f474cd…

MALICIOUS

PDF

70.9 KB Created: 2021-02-19 12:59:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0d361b1a9e1516b1b493cac15daeedff SHA-1: be8c2e5ef26e5baa1b4225443688ed3517f1f520 SHA-256: 819d5b2c12f474cd870989b87b9553d5aec78ba01e6e044558b4b0f063c5591a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=musically+followers+generator PDF link annotation
    • http://sarhello.online/66705196160sh06q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497093/normal_5ff20c495276a.pdfIn PDF document text
    • http://fitdieta.com/hungry_shark_hacked_version_apkmigjv.pdfIn PDF document text
    • http://chelobaka.space/dusukixy1m0l.pdfIn PDF document text
    • https://cdn.sqhk.co/xetasenuwoji/c2hcA58/gardenscapes_app_free_download.pdfIn PDF document text
    • http://populiro.iblogger.org/ohio_crappie_fishing_report_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379489/normal_602f2da470dcb.pdfIn PDF document text
    • http://lozhobelir.space/como_se_llena_un_formato_de_carta_poder_simpledbvea.pdfIn PDF document text
    • http://mishabelle.ru/665187617s0u5v.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/jhBjdhe/cake_icing_ideas_easy.pdfIn PDF document text
    • https://cdn.sqhk.co/rijizedot/WlUjgFS/59061381851.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nuwisumir.epizy.com/what_does_the_white_witch_represent_in_the_lion_the_witch_and_the_wardrobe.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/butterfly_colouring_sheet_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/betikinu.pdfIn PDF document text
    • http://betemuzisifigej.epizy.com/begapazomixizibowufodew.pdfIn PDF document text
    • http://fewuzefar.rf.gd/background_wallpaper_for_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/21388516320.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_off0000dab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB0 5248 bytes
SHA-256: 332737f2f3a49305f5807c5c331a3aa648f0d8560477dec3eb03fe463dffcfda
font_01_sfnt_off0000ecc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC3 10040 bytes
SHA-256: 09dc5cdd72aaaa48792ed72f04afe848b95a75785b407e803c16c88a6f53f178